Nielit Scientist-B IT 22-07-2017

Question 1
Given an undirected graph G with V vertices and E edges, the sum of the degrees of all vertices is
A
E
B
2E
C
V
D
2V
       Engineering-Mathematics       Graph-Theory
Question 1 Explanation: 
Theorem (Sum of Degrees of Vertices Theorem):
Suppose a graph has n vertices with degrees d 1 , d 2 , d 3 , ..., d n.
Add together all degrees to get a new number
d 1 + d 2 + d 3 + . .. + d n = D v . Then D v = 2 e .
In words, for any graph the sum of the degrees of the vertices equals twice the number of edges.
Question 2
Which of the following is an advantage of adjacency list representation over adjacency matrix representation of a graph?
A
In adjacency list representation, space is saved for sparse graphs.
B
Deleting a vertex in adjacency list representation is easier than adjacency matrix representation
C
Adding a vertex in adjacency list representation is easier than adjacency matrix representation.
D
All of the option
       Data-Structures       Graphs
Question 2 Explanation: 
Adjacency Matrix
● Uses O(n​ 2​ ) memory
● It fast to lookup and check for presence or absence of a specific edge between any two nodes O(1)
● It slow to iterate over all edges
● It slow to add/delete a node is a complex operation O(n​ 2​ )
Adjacency List
● Use memory pending on the number of edges (not number of nodes), Which might save a lot of memory if the adjacency matrix is a sparse
● Finding the presence or absence specific edge between any two nodes Is slightly slower than with the matrix O(k) where k number of neighbors nodes
● It is fast to iterate over all edges,because you can access any node neighbors directly
● It is fast to add/delete a node is easier than the matrix representation
Question 3
A path in graph G, which contains every vertex of G and only Once?
A
Euler circuit
B
Hamiltonian path
C
Euler Path
D
Hamiltonian Circuit
       Engineering-Mathematics       Graph-Theory
Question 3 Explanation: 
● Hamiltonian path, also called a Hamilton path, is a graph path between two vertices of a graph that visits each vertex exactly once. If a Hamiltonian path exists whose endpoints are adjacent, then the resulting graph cycle is called a Hamiltonian cycle (or Hamiltonian cycle)
● An Euler path is a path that uses every edge of a graph exactly once. An Euler circuit is a circuit that uses every edge of a graph exactly once.
● An Euler path starts and ends at different vertices.
● An Euler circuit starts and ends at the same vertex.
Question 4
what are the appropriate data structures for graph traversal using Breadth First Search(BFS) and Depth First Search(DFS) algorithms?
A
Stack for BFS and Queue for DFS
B
Queue for BFS and Stack for DFS
C
Stack for BFS and Stack for DFS
D
Queue for BFS and Queue for DFS
       Data-Structures       Graphs
Question 4 Explanation: 
● Depth First Search (DFS) algorithm traverses a graph in a depthward motion and uses a stack to remember to get the next vertex to start a search, when a dead end occurs in any iteration.
● Breadth-first search (BFS) is an algorithm for traversing or searching tree or graph data structures. It starts at the tree root (or some arbitrary node of a graph, sometimes referred to as a 'search key'), and explores all of the neighbor nodes at the present depth prior to moving on to the nodes at the next depth level.
Question 5
In a given following graph among the following sequences:

i)abeghf
ii)abfehg
iii)abfhge
iv)afghbe
Which are depth first traversals of the above graph?
A
I,II and IV only
B
I and IV only
C
II,III and IV only
D
I,III and IV only
       Data-Structures       Graphs
Question 5 Explanation: 
The basic idea of DFS is
● Pick a starting node and push all its adjacent nodes into a stack.
● Pop a node from stack to select the next node to visit and push all its adjacent nodes into a stack.
● Repeat this process until the stack is empty. However, ensure that the nodes that are visited are marked.
● This will prevent you from visiting the same node more than once. If you do not mark the nodes that are visited and you visit the same node more than once, you may end up in an infinite loop.
Question 6
Considering the following graph, which one of the following set of edged represents all the bridges of the given graph?
A
(a,b)(e,f)
B
(a,b),(a,c)
C
(c,d)(d,h)
D
(a,b)
       Engineering-Mathematics       Graph-Theory
Question 6 Explanation: 
● A bridge ,cut-edge, or cut arc is an edge of a graph whose deletion increases its number of connected components.
● Equivalently, an edge is a bridge if and only if it is not contained in any cycle.
● The removal of edges (a,b) and (e,f) makes graph disconnected.
Question 7
Which of the following statements is/are TRUE?
S1: The existence of an Euler circuit implies that an euler path exists.
S2: The existence of an Euler path implies that an Euler circuit exists.
A
S1 is true
B
S2 is true
C
S1 and S2 both are true
D
S1 and S2 both are false
       Engineering-Mathematics       Graph-Theory
Question 7 Explanation: 
An Euler circuit in a graph G is a simple circuit containing every edge of G exactly once
An Euler path in G is a simple path containing every edge of G exactly once.
An Euler path starts and ends at different vertices.
An Euler circuit starts and ends at the same vertex.
Question 8
A connected planar graph divides the plane into a number of regions. If the graph has eight vertices and these are linked by 13 edges, then the number of regions is:
A
5
B
6
C
7
D
8
       Engineering-Mathematics       Graph-Theory
Question 8 Explanation: 
Use Euler's formula ,V−E+R=2
Where V is the number of vertices, E is the number of edges, and R is the number of regions.
R=2-V+E=2-8+13=7
Question 9
Power set of empty set has exactly__subset
A
One
B
Two
C
Zero
D
Three
       Engineering-Mathematics       Set-Theory
Question 9 Explanation: 
● The collection of all subsets of a set A is called the power set of A.
● The empty set is the unique set having no elements; its size or cardinality (count of elements in a set) is zero
● Common notations for the empty set include "{}", " ", and "∅".
Question 10
What is the cartesian product of A={1,2} and B={a,b}?
A
{(1,a),(1,b),(2,a),(b,b)}
B
{(1,1),(2,2),(a,a),(b,b)}
C
{(1,a),(2,a),(1,b),(2,b)}
D
{(1,1),(a,a),(2,a),(1,b)}
       Engineering-Mathematics       Set-Theory
Question 10 Explanation: 
● A Cartesian product is a ​ mathematical operation​ that returns a ​ set​ (or product set or simply product) from multiple sets. That is, for sets A and B, the Cartesian product A × B is the set of all ​ ordered pairs​ (a, b) where a ∈ A and b ∈ B.
● In the question, Set A consists of two elements and Set B consists of two elements. So the total ordered pairs are four.
● Each ordered pair consists of one element from Set-A and another element from Set-B.
Question 11
What is the cardinality of the power set of the set {0,1,2}?
A
8
B
6
C
7
D
9
       Engineering-Mathematics       Set-Theory
Question 11 Explanation: 
The cardinality of a set is defined as the total number of distinct items in that set and power set is defined as the set of all subsets of a set.
Power set consists of ​ {}, {0}, {1}, {2}, {0,1}, {0,2}, {1,2}, {0,1,2}
So power set consists of all unique items then cardinality is 8
Question 12
Let G be a simple connected planar graph with 13 vertices and 19 edges. then the number of faces in the planar embedding of the graph is
A
6
B
8
C
9
D
13
       Engineering-Mathematics       Graph-Theory
Question 12 Explanation: 
● Use Euler's formula ,V−E+R=2
● Where V is the number of vertices, E is the number of edges, and R is the number of regions.
● R=2-V+E=2-13+19=8
● We can also term region as face
Question 13
Which of the following statements is false?
A
(P⋀Q)V(~P⋀Q)V(P⋀~Q) is equal to ~Q⋀~P
B
(P⋀Q)V(~P⋀Q)V(P⋀~Q) is equal to QVP
C
(P⋀Q)V(~P⋀Q)V(P⋀~Q) is equal to QV(P⋀~q)
D
(P⋀Q)V(~P⋀Q)V(P⋀~Q) is equal to PV(Q⋀~p)
       Engineering-Mathematics       Propositional-Logic
Question 13 Explanation: 
One simple method is, by using truth table we can find the statement is true or not.

The last two columns of the above table are different. So option A is false.
Question 14
There are four bus lines between A and B; And three bus lines between B and C The number of way a person roundtrip by bus from A to C by way of B will be
A
12
B
7
C
144
D
264
       Engineering-Mathematics       Combinatorics
Question 14 Explanation: 
The number of bus lines between a and b =4
The number of bus lines between b and c =3
The number of possible combinations between a and c going through b are 4 * 3 = 12.
if you're talking about round trip, he has 12 possible ways to get there and 12 possible ways to get back, so the total possible ways is 12 * 12 = 144.
Question 15
The number of diagonals that can be drawn by joining the vertices of an octagon is
A
28
B
48
C
20
D
None of the option
       Engineering-Mathematics       Graph-Theory
Question 15 Explanation: 
Octagon consists of the 8 vertices and we can draw 5 diagonals

So, we can construct 5*8 = 40 diagonals.
But we have constructed each diagonal twice, once from each of its ends. Thus there are 20 diagonals in a regular octagon.
Question 16
A partial ordered relation is transitive, reflexive and
A
Antisymmetric
B
bisymmetric
C
anti reflexive
D
Asymmetric
       Engineering-Mathematics       Set-Theory
Question 16 Explanation: 
● Let R be a binary relation on a set A.
● R is antisymmetric if for all x,y A, if xRy and yRx, then x=y.
● R is a partial order relation if R is reflexive, antisymmetric and transitive.
Question 17
In tuple relational calculus P1 → p2 is equivalent to
A
~P1 V P2
B
P1 V p2
C
P1 ⋀ P2
D
P1 ⋀ ~P2
       Database-Management-System       Relational-Calculus
Question 17 Explanation: 
In tuple relational calculus P1→ P2 is equivalent to ¬P1 V P2. (The logical implication expression A -> B, meaning if A then B,is equivalent to ¬A V B)
Question 18
If B is a Boolean algebra, then which of the following is true?
A
B is a finite but not complemented lattice
B
B is a finite, Complemented and distributive lattice
C
B is a finite,distributive but not complemented lattice
D
B is not distributive lattice
       Engineering-Mathematics       Set-Theory
Question 18 Explanation: 
Distributive property of boolean algebra
(i)a.(b + c) =a.b + a.c
(ii) a+(b.c) = (a + b).(a + c)
Boolean algebra properites:

Question 19
If R is a relation in relational data Model and A1,A2,..An are the attributes of relation R, what is the cardinality of R expressed in terms of domain of attributes?
A
|R|<=|dom(A1)X dom(A2)..dom(An)|
B
|R|>=|dom(A1)X dom(A2)..dom(An)|
C
|R|=max(|dom(A1)|,|dom(A2)|,..|dom(An)|)
D
|R|=min(|dom(A1)|,|dom(A2)|,..|dom(An)|)
       Database-Management-System       Relational-Algebra
Question 19 Explanation: 
● In the context of databases, cardinality refers to the uniqueness of data values contained in a column.
● Cardinality refers to a number. It gives the number of unique values that appear in the table for a particular column.
● For eg: you have a table called Person with column Gender. Gender column can have values either 'Male' or 'Female''.
● Then the cardinality of Gender column is 2, since there are only two unique values that could possibly appear in that column – Male and Female.
Question 20
If A and B are two sets and A U B = A ​ ∩ ​ B then
A
A=​ ∅
B
B=​ ∅
C
A != B
D
A=B
       Engineering-Mathematics       Set-Theory
Question 20 Explanation: 
● For example, Set A={1,2,3} and Set B={1,2,3}
● AUB={1,2,3}
● A ∩ B ={1,2,3}
● If two sets consists of same elements then ​ A U B = A ​ ∩ ​ B
Question 21
The relation {(1,2),(1,3)(3,1),(1,1),(3,3),(3,2),(1,4),(4,2),(3,4)} is
A
Reflexive
B
Transitive
C
Symmetric
D
Asymmetric
       Engineering-Mathematics       Set-Theory
Question 21 Explanation: 
Given set consists of elements a,b, and c.
The following conditions need to satisfy for each property.
a ​ = ​ a ​ (reflexive property),
if ​ a ​ = ​ b ​ then ​ b ​ = a ​ (symmetric property), and
if ​ a ​ = ​ b ​ and ​ b ​ = ​ c ​ then ​ a ​ = c ​ (transitive property).
an asymmetric relation is a binary relation on a set X where:For all a and b in X, if a is related to b, then b is not related to a
The above relation is not reflexive because there is no ordered pairs (2,2) and (4,4)
The above relation is not Symmetric because if (1,2) present means the relation should consists of (2,1) but there is no such ordered pair in the relation.
Asymmetric property also invalid because of (1,3) and (3,1) ordered pairs.
Question 22
If an SQl query involves NOT,AND,OR with no parenthesis
A
NOT will be evaluated first; AND will be evaluated second;OR will be evaluated last
B
NOT will be evaluated first; OR will be evaluated second;AND will be evaluated last
C
AND will be evaluated first; OR will be evaluated second;NOT will be evaluated last
D
The order of occurrence determines the order of evaluation
       Database-Management-System       SQL
Question 22 Explanation: 
Table: SQL Operator Precedence

The above table shows the SQL operator precedence.
Question 23
The probability that top and bottom cards of a randomly shuffled deck are both aces is:
A
4/52 X 4/52
B
4/52 X 3/52
C
4/52 X 3/51
D
4/52 X 4/51
       Engineering-Mathematics       Probability
Question 23 Explanation: 
E​ 1​ : First card being ace
E​ 2​ : Last card being ace
Note that E​ 1​ and E​ 2​ are dependent events, i.e., probability of last card being ace if first is ace will be lesser than the probability of last card being ace if first card is not ace.
So, probability of first card being ace = 4/52
Probability of last card being ace given that first card is ace is,
P(E​ 2​ / E​ 1​ ) = 3/51
∴ P(E​ 1​ and E​ 2​ ) = P(E​ 1​ ) ⋅ P(E​ 2​ / E​ 1​ ) = 4/52 * 3/51
Question 24
The coupling between different modules of a software is categorized as follows:
I. Content coupling
II.Common coupling
III.Control coupling
IV.Stamp Coupling
V.Data Coupling
Coupling between modules can be ranked in the order of strongest(lease desirable) to weakes(most desirable) as follows:
A
I-II-III-IV-V
B
V-IV-III-II-I
C
I-III-V-II-IV
D
IV-II-V-III-I
       Software-Engineering       Coupling-and-Cohesion
Question 24 Explanation: 
One of the most widely used for software and systems is Myers’ classification, which defines seven levels of coupling, from tightest to loosest:
● Content coupling - modules rely on each others’ internal data or internal organization
● Common coupling - modules share the same global data
● External coupling - modules share an externally imposed data format, communication protocol or device interface
● Control coupling - one module controls the flow of another, such as by passing it a flag or other information
● Stamp coupling - modules share a composite data structure but use different parts of it
● Data coupling - modules share data through parameters, such as in a subroutine call
● Message coupling - modules communicate by passing messages
Question 25
Which of the following statements are TRUE?
I. The context diagram should be identified clearly at all levels of DFDs
II.Control information should not be represented in a DFD
III. Control information should not be represented in a DFD
IV. A data store can be connected either to another datastore or to an external entity.
A
II and IV
B
II and III
C
I and III
D
I,II and III
       Software-Engineering       DFD
Question 25 Explanation: 
● A system context diagram (SCD) in engineering is a diagram that defines the boundary between the system, or part of a system, and its environment, showing the entities that interact with it.This diagram is a high level view of a system. It is similar to a block diagram.
● A data flow diagram (DFD) is a way of representing a flow of a data of a process or a system (usually an information system) The DFD also provides information about the outputs and inputs of each entity and the process itself. A data flow diagram has no control flow, there are no decision rules and no loops. Specific operations based on the data can be represented by a flowchart.
Question 26
The following program is to be tested for statement coverage:
begin
if(a==b)
{
S1;
exit;
}
else if (c==d)
{
S2;
}
else
{
S3;
Exit;
}
S4;
end
The test cases T1,T2,T3 and T4 given below are expressed in terms of the properties satisfied by the values of variables a,b,c and d. The exact values are not given
T1:a,b,c and d are all equal
T1:a,b,c and d are all distinct
T3:a=b and c!=d
T4:a!b and c=d
Which of the test suites given below ensures coverage of statements S1,S2,S3 and S4?
A
T1,T2,T3
B
T2,T4
C
T3,T4
D
T1,T2,T4
       Software-Engineering       Software-testing
Question 26 Explanation: 
The test cases T1 covers S1 ,T2 covers S3 and T4 covers S2, S4.
Question 27
The Function Points(FP) calculated for software projects are often used to obtain an estimate of Lines of code(LOC) required for that project. Which of the following statements is FALSE in this context?
A
The relationship between FP and LOC depends on the programming language used to implement the software
B
LOC requirement for an assembly language implementation will be more for a given FP value, than LOC for implementation in COBOL.
C
On an average, one LOC of C++ provides approximately 1.6 times the functionality of a single LOC of FORTRAN
D
FP and LOC are not related to each other
       Software-Engineering       Functional-Points
Question 27 Explanation: 
● A function point (FP) is a component of software development which helps to approximate the cost of development early in the process.
● A function point calculates software size with the help of logical design and performance of functions as per user requirements.
● “Lines of code” (LOC) is a metric generally used to evaluate a software program or codebase according to its size. It is a general identifier taken by adding up the number of lines of code used to write a program
Question 28
The availability of complex software is 90% its Mean Time Between Failure(MTBF) is 200 days. Because of the critical nature of the usage, the organization deploying the software further enhanced it to obtain an availability of 95%. In the process, the Mean Time To Repair(MTTR) increased by 5 days. What is the MTBF of the enhanced software?(choose the nearest option)
A
205 days
B
300 days
C
500 days
D
700 days
       Software-Engineering       Software-quality
Question 28 Explanation: 
Case-1:Availability of complex software =90% =0.9
Mean Time Between Failure(MTBF)=200
MTTR =?(we need to find )
Case-2:After enhancement modified ,availability= 95%=0.95,For this case,Mean Time To Repair(MTTR) increased by 5 days.
MTBF=?(we need to find )
Availability = MTBF/(MTBF + MTTR)
Case-1:
By substituting option-1 value, 0.9 = 200/(200 + MTTR) then
MTTR= 22.22
Case 2 :0.95 = MTBF/( MTBF+22.22+5)
MTBF= 517.18
Question 29
HTML(Hypertext Markup language) has language elements which permit certain actions other than describing the structure of the web document. Which of the following actions is NOT supported by pure HTML(Without any server or client side scripting) pages?
A
Embed web objects from different sites into the same page
B
Refresh the page automatically after a specified interval
C
Automatically redirect to another page upon download
D
Display the client time as part of the page
       Web-Technologies       HTML
Question 29 Explanation: 
We can achieve first three options by using HTML(static web pages). But to display the client time alone HTML is not sufficient , We require Java Script.
Question 30
Consider the HTML table definition given below":

The number of rows in each column and the number of columns in each row are:
A
(2,2,3) and (2,3,2)
B
(2,2,3) and (2,2,3)
C
(2,3,2) and (2,3,2)
D
(2,3,2) and (2,2,3)
       Web-Technologies       HTML
Question 30 Explanation: 
If you create HTML page with the above code,we will get table structure as below
Question 31
Which of the following statements is/are False?
1. XML overcomes the limitations in HTML to support a structured way of organizing content
2. XML specification is not case sensitive while HTML specification is case sensitive
3. XML supports user defined tags while HTML uses pre-defined tags.
4. XML tags need not be closed while HTML tags must be closed
A
2 only
B
1 only
C
2 and 4 only
D
3 and 4 only
       Web-Technologies       HTML
Question 31 Explanation: 
● Both XML and HTML languages are case sensitive.
● Both XML and HTML consists of Tags. Every open tag should consists of close tag in both languages.
Question 32
Output of following program
#include
int main()
{
int i=5;
printf("%d%d%d", i++,i++,i++);
return 0;
}
A
765
B
567
C
777
D
compile dependent
       Programming       Control Flow
Question 32 Explanation: 
● Multiple increment or decrement of same variable in one expression or one statement is compiler dependent.
● The output will depend upon the way the compiler developed.
Question 33
Output of following program?
#include
void dynamic(int s,..)
{
printf("%d",s);
}
int main()
{
dynamic(2,4,6,8);
dynamic(3,6,9);
return 0;
}
A
23
B
compile error
C
43
D
32
       Programming       Functions
Question 33 Explanation: 
● The latest compiler giving compilation error ​ “error: expected declaration specifiers or ‘...’ before ‘.’ toke​ n“
● Old compiler may support that syntax, in that syntax only first argument is defined which consists of remainings arguments but not defined.
● For the function call dynamic(2,4,6,8), first argument 2 is printed.
● For the function call dynamic(3,6,9);first argument 3 is printed.
Question 34
Output of following program?
#include
int main()
{
int *ptr;
int x;
ptr=&x;
*ptr=0;
printf("x=%d\n",x);
printf("*ptr=%d\n",*ptr);
*ptr+=5;
printf("x=%d\n",x);
printf("*ptr=%d\n",*ptr);
(*ptr)++;
printf(x=%d\n",x);
printf("*ptr=%d\n",*ptr);
return 0;
}
A
x=0
*ptr=0
x=5
*ptr=5
x=6
*ptr=6
B
x=garbage value
*ptr=0
x=garbage value
*ptr=5
x=garbage value
*ptr=6
C
x=0
*ptr=0
x=5
*ptr=5
x=garbage value
*ptr=garbage value
D
x=0
*ptr=0
x=0
*ptr=0
x=0
*ptr=0
       Programming       Pointers
Question 34 Explanation: 
● ptr=&x; // Address of x variable will store in to pointer “ptr” or pointer “ptr” will point to “x”
● *ptr=0; // storing value “0” in the memory location.
● printf("x=%d\n",x); // “0” will be printed
● printf("*ptr=%d\n",*ptr); // “0” will be printed because , ptr will point to variable “x”
● *ptr+=5; // *ptr+=5; means *ptr=*ptr+5 which is nothing but value 5 will store into memory locaton
● printf("x=%d\n",x); // 5 will be printed
● printf("*ptr=%d\n",*ptr); //5 will be printed.
● (*ptr)++; // (*ptr) means 5 and it is incremented by 1 so the updated value is “6”
● printf(x=%d\n",x); // “6” will be printed
● printf("*ptr=%d\n",*ptr);// “6” will be printed
Question 35
Assume that float takes 4 bytes, predict the output of following program.
#include
int main()
{
float arr[5]={12.5,10.0,13.5,90.5,0.5};
float *ptr1=&arr[0];
float *ptr2=ptr1+3;
printf("%f",*ptr2);
printf("%d",ptr2-ptr1);
return 0;
}
A
90.500000 3
B
90.500000 12
C
10.000000 12
D
0.500000 3
       Programming       Pointers
Question 35 Explanation: 
● float *ptr1=&arr[0]; // ptr1 will point to first element of the array.
● float *ptr2=ptr1+3; // ptr2 will point to fourth element of the array
● printf("%f",*ptr2); // It will display fourth element value which is 90.500000
● printf("%d",ptr2-ptr1); // Here both pointer will point to same array . The subtraction operation gives the number of elements between the addresses.
Question 36
Assume that size of an integer is 32 bit. What is the output of following ANSI C program?
#include
struct st
{
int x;
static int y;
};
int main()
{
printf(%d",sizeof(struct st));
return 0;
}
A
4
B
8
C
compile error
D
runtime error
       Programming       Structure
Question 36 Explanation: 
● It will be compile error-​ “error: expected specifier-qualifier-list before ‘static’ static int y;”
● Static variables are allocated memory in data segment, not stack segment.
● Static variable isn't allowed in struct because C requires the whole structure elements to be placed "together". To withdraw a element value from a structure is counted by the offset of the element from the beginning address of the structure.
Question 37
Consider the following C declaration
Struct
{
short s[5];
Union
{
float y;
long z;
}u;
}t;
Assume that objects of the type short, float and long occupy 2 bytes, 4 bytes and 8 bytes respectively. The memory requirement for variable t ignoring alignment considerations, is
A
22 bytes
B
14 bytes
C
18 bytes
D
10 bytes
       Programming       Structure
Question 37 Explanation: 
Union
{
float y;
long z;
}u;
● The sizeof union is 8 bytes (maximum size of two variables sizes 4 and 8)
● The size of structure is sum of short size(array of 5 elements) is 5x2=10 and union size is 8.
● So the total size is 18.
Question 38
#include
struct st
{
int x;
struct st next;
};
int main()
{
struct st temp;
temp.x=10;
temp.next=temp;
printf("%d",temp.next,x);
return 0;
}
A
Compile error
B
10
C
Runtime Error
D
Garbage value
       Programming       Structure
Question 38 Explanation: 
● We can’t declare structure member of own type with in the structure.
● But we can declare pointer structure member with in same structure which is called self referential structure.
● The above code gives compile error ​ “ ​ main.c:5:11: error: field ‘next’ has incomplete type struct st next”
Question 39
Give the output
#include
using namespace std;
class Base
{
Public:
int x,y;
Public:
Base(int i, int j)
{
x=i;y=j;
}
};
class Derived:public Base
{
public:
Derived(int i,int j):x(i),y(j){}
void print()
{
cout< };
int main(void)
{
Derived q(10,10);
q.print();
return 0;
}
A
1010
B
compile error
C
00
D
None of the option
       OOPS       Properties
Question 39 Explanation: 
We can’t directly assign the base class members by using​ ​ initializer list​ in the derived class
We should call the base class constructor in order to initialize base class members.
Question 40
Give the output
#include
using namespace
class Base1
{
public:
~Base1()
{
cout<<"Base1's destructor"< };
class Base2
{
public:
~Base1()
{
cout<<"Base2's destructor"< };
class Derived : public Base1,public Base2
{
public:
~Derived()
{
cout<<"Derived's destructor"< }
int main()
{
Derived d;
return 0;
}
A
Base1'1 destructor
Base2'2 destructor
Derived Destructor
B
Derived Destructor
Base2'2 destructor
Base1'1 destructor
C
Derived Destructor
D
Compiler Dependent
       OOPS       Destructors
Question 40 Explanation: 
● C++ constructor call order will be from top to down that is from base class to derived class and c++ destructor call order will be in reverse order.
● First child class and later parent class.
Question 41
Which of the following is/are true about packages in Java?
1) Every class is part of some package
2) All classes in a file are part of the same package
3)If no package is specified, the classes in the file go into a special unnamed package.
4) If no package is specified, a new package is created with folder name of class and the class is put in this package
A
Only 1,2 and 3
B
Only 1,2 and 4
C
Only 4
D
Only 1 and 3
       OOPS       Class
Question 41 Explanation: 
Option -4 false because new package is created by using syntax package package_name which is user defined .There is no relation with class name.
Question 42
Which of the following is false about abstract classes in java?
A
If we derive an abstract class and do not implement all the abstract methods, then the derived class should also be marked as abstract using 'abstract' keyword
B
Abstract classes can have constructors.
C
A class can be made abstract without any abstract method
D
A class can inherit from multiple abstract classes
       OOPS       Class
Question 42 Explanation: 
● An abstract class can have an abstract method without body and it can have methods with implementation also. ● Multiple inheritance is not possible with abstract classes.
Question 43
Which of the following is true about interfaces in java?
1. An interface can contain following type of members.
...public,static,final fields(i.e., constants)
...default and static methods with bodies
2. An instance of interface can be created.
3. A class can implement multiple interfaces
4. many classes can implement the same interface
A
1,3 and 4
B
1,2 and 4
C
2,3 and 4
D
1,2,3 and 4
       OOPS       Class
Question 43 Explanation: 
● The interface in java is a blueprint of a class. It has static constants and abstract methods.
● There can be only abstract methods in the Java interface, not method body.
● It cannot be instantiated just like the abstract class because there is no method definition available with the interface.
Question 44
Consider three processes(process id 0,1,2 respectively) with compute time bursts 2,4 and 8 time units. All processes arrive at time zero. Consider the Longest remaining time first(LRTF) scheduling algorithm. In LRTF ties are broken by giving priority to the process with the lowest process id. The average turnaround time is:
A
13 units
B
14 units
C
15 units
D
16 units
       Operating-Systems       Process-Scheduling
Question 44 Explanation: 
Algorithm: LRTF (Longest Remaining Time First)

Avg TAT = 12+13+14/3 = 39/3 = 13 units
Question 45
Consider three processes, all arriving at time zero, with total execution time of 10,20 and 30 units, respectively. Each process spends the first 20% of execution time doing I/O, the next 70% of time doing computations, and the last 10% of time doing I/O again. The operating system uses a shortest remaining compute time first scheduling algorithm and schedules a new process either when the running process gets blocked on I/O or when the running process finishes its compute burst. Assume that all I/O operations can be overlapped as much as possible. For what percentage f time does the CPU remain idle?
A
0%
B
10.6%
C
30.0%
D
89.4%
       Operating-Systems       Process-Scheduling
Question 45 Explanation: 

Total time needed to complete the execution = 47
Idle time = 2+3 = 5
Percentage of Idle time = 5/47 × 100 =10.6%
Question 46
Consider three CPU-intensive processes which require 10,20 and 30 time units and arrive at times 0,2 and 6, respectively. How arrive at times 0,2 and 6, respectively. How many context switches are needed if the operating system implements a shortest remaining time first scheduling algorithm? Do not count the context switches at time zero and at the end.
A
1
B
2
C
3
D
4
       Operating-Systems       Process-Scheduling
Question 46 Explanation: 

Total no.of context switches is 2.
Question 47
Which of the following process scheduling algorithm may lead to starvation?
A
FIFO
B
Round Robin
C
Shortest Job Next
D
None of the option
       Operating-Systems       Process-Scheduling
Question 47 Explanation: 
● Starvation is method in which process with high priorities continuously uses the resources preventing low priority process to acquire the resources
● In the Shortest job next scheduling shortest job process will run first and later higher burst time.Here the process with higher burst time need to wait for longer time.
Question 48
A scheduling algorithm assigns priority proportional to the waiting time of a process. Every process starts with priority zero(the lowest priority). The scheduler re-evaluates the process priorities every T time units and decides the next process to schedule. Which one of the following is TRUE if the processes have no I/O operations and all arrive at time zero?
A
This algorithm is equivalent to the first come first serve algorithm
B
This algorithm is equivalent to the round-robin algorithm
C
This algorithm is equivalent t the shortest-job-first algorithm
D
This algorithm is equivalent to the shortest-remaining time-first algorithm
       Operating-Systems       Process-Scheduling
Question 48 Explanation: 
Let's take an example:

Consider scheduler schedule processes priority after S times units so order of execution will be P1 P2 P3 P4 P1 P2 P3 P4 (S< execution time of any process) which is exactly same as round robin so answer – B.
Question 49
Which one of the following is true?
A
NAND gate and AND gate both are universal gates
B
NOR gate and OR gate both are universal gates
C
NAND gate and OR gate both are universal gates
D
NAND gate and NOR gate both are universal gates
       Digital-Logic-Design       Logic-Gates
Question 49 Explanation: 
A universal gate is a gate which can implement any Boolean function without need to use any other gate type. The NAND and NOR gates are universal gates.
Question 50
Which one of the following is the function of a multiplexer
A
To decode information
B
To select 1 out of N input data sources and to transmit it to single channel
C
To transmit data on N lines
D
To perform serial to parallel conversion
       Digital-Logic-Design       Combinational-Circuits
Question 50 Explanation: 
● A multiplexer (or mux) is a device that combines several analog or digital input signals and forwards them into a single output line.
● A multiplexer of 2​ n inputs has n select lines, which are used to select which input line to send to the output.
● Multiplexers are mainly used to increase the amount of data that can be sent over the network within a certain amount of time and bandwidth.
Question 51
0/1-Knapsack is a well known problem where, it is desired to get the maximum total profit by placing n items(each item is having some weight and associated profit) into a knapsack of capacity W. The table given below shows the weights and associated profits for 5 items, where one unit of each item is available to you. It is also given that the knapsack capacity W is 8. If the given 0/1 knapsack problem is solved using Dynamic Programming, which one of the following will be maximum earned profit by placing the items into the knapsack of capacity 8.
A
19
B
18
C
17
D
20
       Algorithms       0/1-Knapsack-and-fractional-knapsack
Question 51 Explanation: 
Here, we can get the first item using profit per weight even we are using 0/1 knapsack.

→ According to above Profit/weight ratio, the item-1 having maximum profit. So, pick item-1.
→ Now M=7, Pick item-2 because it has more profit.
→ Now M=5, Now according to profit/weight ration we can pick item-3 or item-5 but item-5 having more weight, so it exceeds capacity. If we are selecting item-3 means we are wasting 1 slot. So, here, profit/weight ration fails. So, follow brute force technique in this position. We can pick item-4 because it has weight 5.
→ Now, M=0 and Profit=19. [item1 + item2 + item4]
Question 52
'AS' clause is used in SQL for
A
Selection operation
B
rename operation
C
Join Operation
D
Projection Operation
       Database-Management-System       SQL
Question 52 Explanation: 
● AS is a keyword in SQL that allows you to rename a column or table using an alias.
● Syntax: SELECT column_name AS 'Alias' FROM table_name;
Question 53
Related fields in a database are grouped to form a
A
data file
B
data record
C
menu
D
Bank
       Database-Management-System       Relational-databases
Question 53 Explanation: 
● In a database, a record (sometimes called a row) is a group of fields within a table that are relevant to a specific entity.
● For example, in a table called customer contact information, a row would likely contain fields such as: ID number, name, street address, city, telephone number and so on.
Question 54
cross product is a
A
Unary operator
B
ternary operator
C
binary Operator
D
Not an operator
       Programming       Operator
Question 54 Explanation: 
● The cross product of two tables A x B builds a huge virtual table by pairing every row of A with every row of B.
● This operator requires two tables so it binary operator.
Question 55
A table joined with itself is called
A
join
B
self join
C
outer join
D
Equi join
       Database-Management-System       Relational-Algebra
Question 55 Explanation: 
● A self join is a join in which a table is joined with itself (which is also called Unary relationships), especially when the table has a FOREIGN KEY which references its own PRIMARY KEY.
● To join a table itself means that each row of the table is combined with itself and with every other row of the table.
Question 56
Consider the join of a relation R with relation S. If R has m tuples and S has n tuples, then the maximum size of join is
A
mn
B
m+n
C
(m+n)/2
D
2(m+n)
       Database-Management-System       Relational-Algebra
Question 56 Explanation: 
For maximum:
If there is common attribute in R and S, and every row of R match with every row of S then total no. of tuples will be mn.
Question 57
Let L be a lattice. Then for every a and b in L which one of the following is correct?
A
aVb = a​ ⋀ ​ b
B
aV(bVc)=(aVb)Vc
C
aV(b​ ⋀ ​ c)=a
D
aV(bVc)=b
       Engineering-Mathematics       Set-Theory
Question 57 Explanation: 
Distributive lattice is satisfies this condition aV(bVc)=(aVb)Vc
A distributive lattice is a lattice in which the operations of join and meet distribute over each other.
Question 58
​ Let N={1,2,3,...} be ordered by divisibility, which of the following subset is totally ordered?
A
(2,6,24)
B
(3,5,15)
C
(2,9,16)
D
(4,15,30)
       Engineering-Mathematics       Set-Theory
Question 58 Explanation: 
A binary relation R on a set A is a total order on A iff R is a connected partial order on A.
Question 59
​ In digital logic, if A ​ ⊕ ​ B=C, then which one of the following is true?
A
A ​ ⊕ ​ C=B
B
B ​ ⊕ ​ C=A
C
A ​ ⊕ ​ B ​ ⊕ ​ C=0
D
Both A) and B)
E
None of these
       Digital-Logic-Design       Boolean-Algebra
Question 59 Explanation: 
Given that
XOR:
X ⊕ X= 0
X ⊕ X'= 1
X ⊕ 0 = X
X ⊕ 1 = X'
A) A ⊕ C = B
A ⊕ A ⊕ B = B
0 ⊕ B = B
B= B
B) B ⊕C = A
B ⊕ A ⊕ B = A
A ⊕ 0=A
A=A
C) A⊕B=C
A⊕B⊕ C=C ⊕C ,
A⊕B⊕ C= 0
All are correct
Question 60
What is the running time of the following function(specified as a function of the input value)?
void Function(int n)
{
int i=1;
int s=1;
while(s<=n)
{
i++;
s=s+i;
}
}
A
O(n)
B
O(n​ 2​ )
C
O(1)
D
O(​√n)
       Algorithms       Asymptotic-Complexity
Question 60 Explanation: 
S= 1, 3, 6, 10, 15 21….(>n) stopping condition.
i= 1, 2, 3, 4, 5, 6…..
Here, ‘S’ is nothing but sum of ‘n’ natural numbers
Assume the n=21, then corresponding k value 6. "k^2" is nothing but 36 which is greater than "n"
For any given K value , the S value is k(k+1)/2, So, 6(6+1)/2=21
the loop will terminate whenever k(k+1)/2 >n
k=O(√n)
There are 60 questions to complete.

NIELIT Scientist -B CS (22-07-17)

Question 1
What is the maximum number of the handshakes that can happen in the room with 5 people in it?
A
15
B
10
C
6
D
5
Question 1 Explanation: 
Let’s suppose there is ‘n’ number of persons are there and each one suppose to do an handshake with ‘n-1 persons.
So,
Total number of handshakes is = n(n-1) (with repetition)
But we need without repetition means distant handshakes (A→ B, B → A) so we divided by ‘2’
= n(n-1) / 2
= 5(5-1) / 2
= 10
Question 2
A train running at the speed of 60 km/hr crosses a pole in 9 seconds. What is the length of the train?
A
120 meters
B
180 meters
C
324 meters
D
150 meters
Question 2 Explanation: 
Let’s take length of the train = ‘x’
Speed of the Train = 60km/hr and crosses a pole in 9 Seconds.
Speed of the train is km/hr and crosses a pole in seconds.
So we need to convert the km/hr into mts /sec.
For that one we need to multiply the speed of the train to (5/18).
Speed of the train = 60 * (5/18)
We have one Basic formula in Time and Distance
Distance = Speed * Time
x = 60 * (5/18) * 9
x = 150 mts
Question 3
The percentage profit earned by selling an article for Rs. 1,920 is equal to the percentage loss incurred by selling the same article for Rs. 1,280. At what price should the article be sold to make 25% profit?
A
Rs 2,000
B
Rs 2,200
C
Rs 2,400
D
Data inadequate
Question 3 Explanation: 
For this Problem, We need two important formulas.
1. %Profit = ((Selling Price - Cost Price) / (Cost Price) ) * 100
2. %Loss = ((Cost Price - Selling Price) / (Cost Price)) * 100
From the above question we know
% Profit = % Loss
Selling price when they got profit = 1920 /-
Selling price when they got loss = 1280 /-
((1920 - Cost Price ) / ( Cost Price) ) * 100 = (( Cost Price - 1280 ) / (Cost Price)) * 100
After Solving this
2 * Cost Price = 3200
Cost Price = 1600
We got cost price, Now we need to find out Selling price when they got 25% Profit
Cost Price = 1600
Profit% = 25
Selling Price = ?
%Profit = ((Selling Price - Cost Price) / (Cost Price) ) * 100
25 = ((Selling Price - 1600) / 1600)) * 100
25 * 16 = Selling Price - 1600
Selling Price = 1600 + 400
Selling Price = 2000/-
Question 4
A boatman goes 2 Km against the current of the stream in 1 hour and goes 1 Km along the current in 10 minutes. How long will it take to go 5 Km in stationary water?
A
40 minutes
B
1 hour
C
1 hr 15 min
D
1 hr 30 min
Question 4 Explanation: 
Speed of the Down Stream = 2 km/ 1 = 2 km/hr
Speed of the Upstream = 5km / (10/60) = 6km/hr
Speed of the Boat still in water = (Downstream + Upstream ) / 2 = (6 + 2) / 2
= 4 km/hr
Time taken for 5 km in Stationary water = 5/4 = 1(1⁄4)
= 1Hr 15 Min
Question 5
The present ages of three persons in proportions 4 : 7 : 9. Eighty years ago, the sum of their ages was 56. Find their present ages (in years).
A
8, 20, 28
B
16, 28, 36
C
20, 35, 45
D
None of the above
Question 5 Explanation: 
Present age of 3 persons is = 4x, 7x, 9x
Eight years ago their sum is = 56
So,
4x+7x+9x-(8+8+8) = 56 (Eight Years Ago so that we subtract their individual ages from present age)
20x = 80
x = 4
Present ages = 4 * 4 , 7*4, 9*4
= 16, 28, 36
Question 6
A tank is filled by three pipes with uniform flow. The first two pipes operating simultaneously fill the tank in the same time during which the tank is filled by the third pipe alone. The second pipe fills the tank 5 hours faster than the first pipe and 4 hours slower than the third pipe. The time required by the first pipe is?
A
6 hours
B
10 hours
C
15 hours
D
30 hours
Question 6 Explanation: 
Let’s take the first pipe to a fill a tank in ‘x’ hours.
So, from that question we know that second pipe fills a tank 5 hours faster than 1st pipe means second pipe fills a tank in ‘x/5’ hours.
And Second pipe fills a tank 4 hours slower than third pipe means third pipe can fill a tank in ‘x/20’ hours.
The first two pipes operating simultaneously fill the tank in the same time during which the tank is filled by the third pipe alone.
(1 / x) + (5 / x) = (20 / x)
x = 15 Hours
Question 7
A rectangular field is to be fenced on three sides leaving a side of 20 feet uncovered. If the area of the field is 680 sq feet, how many feet of fencing will be required?
A
34
B
40
C
68
D
88
Question 7 Explanation: 
Given that length and area, so we can find the breadth.
Length x Breadth = Area
20 x Breadth = 680
Breadth = 34 feet
Area to be fenced = 2B + L = 2 (34) + 20 = 88 feet
Question 8
In how many different ways can the letters of the word ‘CORPORATION’ be arranged so that the vowels always come together?
A
810
B
1440
C
2880
D
50400
Question 8 Explanation: 
In ‘CORPORATION’ We have total 5 vowels (OOAIO) and taken has one unit
Remaining Consonants are (CRPRTN) 6 and add vowels unit 1.
6 + 1 = 7 In this R is repeated 2 times
In ‘CORPORATION’ We have total 5 vowels (OOAIO) and taken has one unit Remaining Consonants are (CRPRTN) 6 and add vowels unit 1. 6 + 1 = 7 In this R is repeated 2 times So number of ways we can arrange these words = 7! / 2! = 2520
number of ways we can arrange vowels is 5!
2 ‘O’ are repeated so 5! / 2! = 20
Total Number ways = 2520 * 20 = 50400
So number of ways we can arrange these words = 7! / 2! = 2520
number of ways we can arrange vowels is 5!
2 ‘O’ are repeated so 5! / 2! = 20
Total Number ways = 2520 * 20 = 50400
Question 9
Seats for Mathematics, Physics and Biology in a school are in the ratio of 5 : 7 : 8. There is a proposal to increase these seats by 40%, 50% and 75% respectively. What will be the ratio of increased seats?
A
2 : 3 : 4
B
6 : 7 : 8
C
6 : 8 : 9
D
None of the above
Question 9 Explanation: 
Seats for Mathematics, Physics and Biology in a school are in the ratio is 5:7:8.
There is a proposal to increase these seats by 40%, 50% and 75% respectively means
After increasing seats ratio will be
5 * (140/100) : 7 * (150/100) : 8 * (175/100)
5 * 140 : 7 * 150 : 8 * 175
28 : 42 : 56
2 : 3 : 4
Question 10
A flag staff 17.5 m high casts a shadow of length 40.25 m. The height of the building, which casts a shadow of length 28.75 m under similar condition will be?
A
10 m
B
12.5 m
C
17.5 m
D
21.25 m
Question 10 Explanation: 
Let’s take height of the building is x.
From that question we know that less height less shadow so it’s directly proportional.
40.25 : 17.5 : : 28.75 : x
x = (17.5 * 28.75) / 40.25
x = 12.5 m
Question 11
Find the odd one in the following series for
396, 462, 572, 427, 671, 264
A
396
B
427
C
671
D
264
Question 11 Explanation: 
Except 427 remaining numbers are sum of first number and last number is middle number.
Question 12
Find the odd one in the following series for
2, 5, 10, 17, 26, 37, 50, 64
A
50
B
26
C
37
D
64
Question 12 Explanation: 
From the above sequence we know that
2 + 3 = 5
5 + 5 = 10
10 + 7 =17
17 + 9 = 26
26 + 11 = 37
37 + 13 = 50
50 + 15 = 65 But in the question they given 64. So 64 is wrong.
Question 13
The difference between simple and compound interests compounded annually on a certain sum of money for 2 years at 4% per annum is Re. 1. The sum (in Rs.) is
A
625
B
630
C
640
D
650
Question 13 Explanation: 
The difference between compound interest and simple interest on Rs. P for 2 years at R% per annum is = p * (R/100)^2
P * (R/100)^2 = 1
P * (4/100)^2 = 1
P * (1/25)^2 = 1
P = 625
So, Sum is 625
Question 14
The angle of elevation of the sun, when the length of the shadow of a tree is 3 times the height of the tree, is
A
30​ 0
B
45​ 0
C
60​ 0
D
90​ 0
E
None of the above
Question 15
Let N be the greatest number that will divide 1305, 4665 and 6905, leaving the same remainder in each case. Then sum of the digits in N is
A
4
B
5
C
6
D
8
Question 15 Explanation: 
For this type of questions we have to find gcd of (4665 - 1305), (6905 - 4665) and (6905 - 1305)
So, = H.C.F. of 3360, 2240 and 5600 = 1120.
sum = 1+1+2+0 = 4.
Question 16
The study of fossils is known as
A
Ethnology
B
Palaeontology
C
Synecology
D
Ombrology
Question 17
Who has been elected as the president of Cricket Association of Bengal (CAB) in 2015?
A
Sourav Ganguly
B
Anil Kumble
C
Sunil Gavaskar
D
Mohd. Azharuddin
Question 18
Which company committed to invest $150 million for the Indian Startups during the Indian Prime Minister’s Sept 2015 US trip?
A
Qualcomm
B
Yahoo
C
Google
D
Microsoft
Question 19
What is the name of the Second Guided Missile Destroyer which has been commissioned into Indian Navy recently?
A
INS Vajram
B
INS Kochi
C
INS Kolkata
D
INS Mumbai
Question 20
Which city hosted South Asian Games in January 2016?
A
Bhopal and Jaipur
B
Mumbai and Kolkata
C
New Delhi and Pune
D
Guwahati and Shillong
Question 21
Which country is poised to become the third largest buyer of commercial passenger planes in the world with only the US and China ahead of it?
A
France
B
India
C
Germany
D
None of the above
Question 22
Which city is being developed as the new capital of current state of Andhra Pradesh?
A
Hyderabad
B
Amaravati
C
Vishakhapatnam
D
None of the above
Question 23
Garampani sanctuary is located at
A
Junagarah, Gujarat
B
Diphu, Assam
C
Kohima, Nagaland
D
Gangtok, Sikkim
Question 24
Ashoka’s ‘Dhamma’ or ‘Law of Piety’
A
Had the essence of all religions
B
was a revolt against inefficiency in the Buddhist Sangha
C
Was a new religion which he founded after the Kalinga war
D
Laid emphasis on following a strict set of rituals
Question 25
Which two countries have voted against a Feb. 2017 UN resolution to impose sanctions against Syria over its alleged use of chemical weapons?
A
US and Russia
B
US and France
C
Russia and China
D
France and China
Question 26
Which country has recently unveiled a project dubbed “Mars2117”, under which it aims to establish the first inhabitable human settlement on planet Mars by year 2117?
A
China
B
Japan
C
UAE
D
South Korea
Question 27
Daniel Ortega has been sworn in for a third consecutive term as president of which Central American Country?
A
Costa Rica
B
Honduras
C
Nicaragua
D
El Salvador
Question 28
Which among the following airports has claimed that it has become the first aerodrome in the world to adopt unique performance and benchmarking digital platform, Arc, which helps in tracking and monitoring building performance?
A
Indira Gandhi International(IGI) Airport Delhi
B
Babasaheb Ambedkar International Airport, Nagpur
C
Sardar Vallabhbhai Patel International Airport, Ahmedabad
D
Lokpriya Gopinath Bordoloi International Airport, Guwahati
Question 29
”Socialist”; “Secular” ,”Unity and Integrity of the Nation” [to replace only “Unity of the Nation”], were added in the Preamble as per which Amendment to the Indian constitution?
A
Thirty eight Amendment 1975
B
Forty second Amendment 1976
C
Thirty first Amendment 1973
D
Forty fourth Amendment 1978
Question 30
Which Nation won Davis Cup in 2016?
A
Switzerland
B
Spain
C
Argentina
D
England
Question 31
1. The hotel is two blocks east of the drugstore.
2. The market is one block west of the hotel.
3. The drugstore is west of the market. If the first two statements are true, the third statement is
A
True
B
False
C
Uncertain
D
Insufficient data
Question 32
Vincent has a paper route. Each morning, he delivers 37 newspapers to customers in his neighborhood. It takes Vincent 50 minutes to deliver al the papers. If Vincent is sick or has other plans, his friend Thomas, who lives on the same street, will sometimes deliver the papers for him.
From the above data, which of the following statements must be true?
A
Vincent and Thomas live in the same neighborhood
B
It takes Thomas more than 50 minutes to deliver the papers
C
It is dark outside when Vincent begins his deliveries
D
Thomas would like to have his own paper route
Question 33
Which number pair comes next in the series?
4 7 26 10 13 20 16
A
14 4
B
14 17
C
18 14
D
19 14
Question 33 Explanation: 
The next two numbers in the sequence are 19, 14.
Check the pattern 4, 7 and 10, 13. These pair of numbers are separated by 3. So extending the logic, the next pair of numbers should be 16, 19.
Now for the pair of numbers 26, 20. They are separated by 6. Hence extending the logic, the next number in sequence should be 14.
Hence the sequence should be 4,7, 26, 10, 13, 20, 16, 19, 14, 22, 25, 8 etc.
Question 34
Which word does not belong with the others?
A
Cornea
B
Retina
C
Vision
D
Pupil
Question 34 Explanation: 
Those all words are part of eye except Vision.
Question 35
Complete the missing element of the following series:
A
1
B
2
C
3
D
4
Question 35 Explanation: 
When we observe above diagram all the first and last elements are same and coming to middle one for first two is same and after two is should be same.
Question 36
JAK, KBL, LCM, MDN, _______________
A
OEP
B
NEO
C
MEN
D
PFQ
Question 36 Explanation: 
That series is like J K L M next is N
Same like A B C D next is E
K L M N next is O
So, Finally NEO
Question 37
FAG, GAF, HAI, IAH, _________________
A
JAK
B
HAL
C
HAK
D
JAI
Question 37 Explanation: 
In the above pattern F G H I next is J
A A A A next is A
G F I H next is K
So,
Finally JAK
Question 38
Applying for Seasonal Employment occurs when a person requests to be considered for a job that is dependent on a particular season or time of year. Which situation below is the best example of Applying for Seasonal Employment?
A
The Ski instructions at Top of the Peak Ski School work from December through March
B
Matthew prefers jobs that allow him to work outdoors
C
Lucinda makes an appointment with the beach resort restaurant manager to interview for the summer waitressing position that was advertised in the newspaper
D
Doug’s ice cream shop stays open until 11 p.m. during the summer months
Question 39
QAR, RAS, SAT, TAU, ________________
A
UAV
B
UAT
C
TAS
D
TAT
Question 39 Explanation: 
From that series
Q R S T next is U
A A A A next is A
R S T U next is V
Finally UAV
Question 40
If gorblflur means fan belt pixngorbl means ceiling fan arthtusl means tile roof Which word could mean “ceiling tile”?
A
gorbltusl
B
flurgorbl
C
arthflur
D
pixnarth
Question 41
The town of Paranda is located on Green lake. The town of Akram is West of Paranda. Tokhada is East of Akram but West of Paranda. Kokran is East of Bopri but West of Tokhada and Akram. If they are all in the same district, which town is the farthest West?
A
Paranda
B
Kokran
C
Akram
D
Bopri
Question 41 Explanation: 
From the above question we got like this
Bopri Kokran Akram Tokhada Paranda
So,
The farthest west is Bopri
Question 42
Get odd one out.
A
YWU
B
NLJ
C
KIF
D
VTR
Question 42 Explanation: 
In those series let’s take first one YWU
Reverse it, UWY for between each and every letter there is one letter missing like UVWXY
So, Reverse those letters YXWVU means YWU
But coming to option C is different in between I and F there is two letters missing. So option C is odd one.
Question 43
Two students appeared at an examination. One of them secured 9 marks more than the other and his marks were 56% of the sum of their marks. The marks obtained by them are
A
39, 30
B
41, 32
C
42, 33
D
43, 34
Question 43 Explanation: 
Let’s one student secured marks ‘x’
Another student secured ‘x + 9’
According to question
x + 9 = (56 * 100)(x + x + 9)
100 (x + 9) = 56 (2x + 9)
After solving this we got x = 33
So option C is correct.
Question 44
Find the number of triangles in the given figure
A
8
B
10
C
12
D
14
Question 44 Explanation: 
There are total 14 number of triangles are present in that figure
Question 45
Choose a figure which would most closely resemble the unfolded form of Figure (Z).
A
1
B
2
C
3
D
4
Question 46
8 persons E, F, G, H, I, J, K and L are seated around a square table – two on each side.
There are 3 ladies who are not seated next to each other.
J is between L and F.
G is between I and F.
H, a lady member is second to the left of J.
F, a male member is seated opposite to E, a lady member.
There is a lady member between F and I.

Who among the following is to the immediate left of F?
A
G
B
I
C
J
D
H
Question 47
8 persons E, F, G, H, I, J, K and L are seated around a square table – two on each side.
There are 3 ladies who are not seated next to each other.
J is between L and F.
G is between I and F.
H, a lady member is second to the left of J.
F, a male member is seated opposite to E, a lady member.
There is a lady member between F and I.

What is true about J and K?
A
J is male, K is female
B
J is female, K is male
C
Both are female
D
Both are male
Question 48
8 persons E, F, G, H, I, J, K and L are seated around a square table – two on each side.
There are 3 ladies who are not seated next to each other.
J is between L and F.
G is between I and F.
H, a lady member is second to the left of J.
F, a male member is seated opposite to E, a lady member.
There is a lady member between F and I.

How many persons are seated between K and F?
A
1
B
2
C
3
D
4
Question 49
8 persons E, F, G, H, I, J, K and L are seated around a square table – two on each side.
There are 3 ladies who are not seated next to each other.
J is between L and F.
G is between I and F.
H, a lady member is second to the left of J.
F, a male member is seated opposite to E, a lady member.
There is a lady member between F and I.

Who among the following are three lady members?
A
E, H, and J
B
E, F and G
C
E, H and G
D
C, H and J
Question 50
8 persons E, F, G, H, I, J, K and L are seated around a square table – two on each side.
There are 3 ladies who are not seated next to each other.
J is between L and F.
G is between I and F.
H, a lady member is second to the left of J.
F, a male member is seated opposite to E, a lady member.
There is a lady member between F and I.

Who among the following is seated between E and H?
A
F
B
I
C
K
D
Cannot be determined
Question 51
Choose the most appropriate words from the options given below to complete the following sentence ;
Female sparrows and immatures are _____, while the typical adult male sparrow is _____ by its markings; a black bib, a grey cap, and white lines trailing down from the mouth.
A
Somewhat nondescript, easily recognized
B
Difficult to spot, better camouflaged
C
Considered to be endangered, characterized
D
Comparatively small, made more conspicuous
Question 52
Find the best correction for the underlined sentence from the four options give below, Under a provision of the Constitution that ​
    was never applied. Congress has been required to call a convention for considering possible amendments to the document when formally asked to do it
by the legislatures of two-thirds of the states
A
Was never applied, Congress has been required to call a convention for considering possible amendments to the document when formally asked to do it
B
Was never applied, there has been a requirement that Congress call a convention for consideration of possible amendments to the document when asked to do it formally
C
Has never applied, whereby Congress is required to call a convention to consider possible amendments to the document when formally asked to do so
D
Has never been applied, Congress is required to call a convention to consider possible amendments to the document when formally asked to do so
Question 53
Statement:​ Should all the drugs patented and manufactured in Western countries be first tried out on sample basis before giving license for sale to general public in India?
Arguments:
i. Yes. Many such drugs required different doses and duration for Indian population and hence it is necessary.
ii. No. This is just not feasible and hence cannot be implemented.
Choose from the following:
A
Only argument i is strong
B
Only argument ii is strong
C
Either i or ii is strong
D
Neither i nor ii is strong
Question 54
A Huge majority – 84 percent – of the population identifies as Hindu. There are many variations of Hinduism, and four predominant sects – Shiva, Vaishnava, Shakteya and Smarta. About 13 percent of Indians are Muslim, making it one of the largest Islamic nations in the world. Christians and Sikhs make up a small percentage of the population, and there are even fewer Buddhists and Jains.

The passage best supports the statement that
A
Culture, Traditions and Customs of India are diverse
B
India is known as a multilingual country
C
India is identified as the birthplace of Hinduism and Buddhism
D
India is a country where diversity in religion exists
Question 55
Choose the appropriate answer the following answer to complete the following sentence:
To those of us who had always thought him timid, his ________came as a surprise.
A
Inability
B
Inevitability
C
Intrepidity
D
Inertness
Question 56
Three ladies X, Y and Z marry three men A, B and C. X is married to A, Y is not married to an engineer, Z is not married to a doctor, C is not a doctor and A is a lawyer. Only monogamous relationships are permitted. Then which of the following statements is correct?
A
Y is married to C who is an engineer
B
Z is married to C who is a doctor
C
X is married to a doctor
D
None of the above options
Question 56 Explanation: 
From that question we know that
X married to A and A is lawyer.
Y not married to Engineer and Z not married to Doctor.
But C is not Doctor so from this statement Z married to C who is Engineer.
Finally Y married to B who is Doctor.
Question 57
Arrange sentences A, B, C and D between sentences 1 and 6, to form a logical sequence of six sentences.
1. The new economic policy comprises the various measures and changes introduced since july 1991.
(A) There is a common thread running through all these measures
(B) The objective is simple – to improve the efficiency of the system
(C) The regulatory mechanism involving multitude of controls has fragmented the capacity and reduced competition even in the sector.
(D) The thrust of the new policy is towards creating a more competitive environment as a means to improving the productivity and efficiency of the economy.
6. This is to be activated by removing the barriers and restrictions on the entry and growth of firms.

A
DCAB
B
ABCD
C
BDAC
D
DCBA
Question 58
Correct the underlined part of the sentence by choosing the correct option.
Bombast​
    is when high sounding words for effect, not suitable, are used.
A
is when high sounding words for effect, not suitable, are used
B
is the use of high-sounding words for effect rather than for suitability
C
is where high-sounding words are used for effect not suitability
D
is the using of high-sounding words for effect only
Question 59
Pick the word from the four options which is most nearly opposite in meaning to the bold word.
RECALCITRANT
A
feckless
B
yielding
C
sombre
D
polished
Question 59 Explanation: 
Meaning of ​ RECALCITRANT ​ is uncooperative,intractable,unmanageable
option A and C and D those words are giving same meaning as RECALCITRANT but option B is opposite meaning of RECALCITRANT yielding means not hard or rigid.
Question 60
The question below consists of a pair of related words followed by four pairs of words.
Select the pair that best expresses the relation in the original pair.
QUISLING : BETRAY
A
taunt : provoke
B
inception : termination
C
juggernaut : crush
D
obstinate : preserve
There are 60 questions to complete.

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