MCQ on Data Types in c

Hello students welcome to CSE Study247, Today I am provide you MCQ on Data Types in c.

This page provide 20 Multiple choice question with Answer that is very useful of Computer science students like preparation of many exam Like ( ISRO,DRDO ,Semester, Interview, TCS , Railway & another Government Sector)

• ❤️ TOP 500+ C Programming Question and Answer

C programming is the basic language of programming that help to learn another language. So this MCQ is very useful for you.

C is a general purpose ,high level language that originally developed by Dennis Ritchie to develop the UNIX operating system at Bell labs.

 

Q.1 Which of the foolowing is a predefine data type

A) Array
B) Pointer
C) int
D) union

ANSWER= (C) int

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Q.2 What is the size of char data type ?

A) 1 Byte
B) 8 Bits
C) Both A & B
D) 4 Bits

ANSWER= (C) Both A & B

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Q.3 What is the size of an int data type?

A) 1 Byte
B) 2 Byte
C) 3 Byte
D) 4 Byte

ANSWER= (B) 2 Byte

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Q.4 Which of the following is not a basic data type in C language?

A) char
B) int
C) float
D) real

ANSWER= (D) real

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Q.5 Find out the output for the following program

  void main()
  {
  int x=15;
  printf(“%d%d”,x,x++);
  }

A) 15 16
B) 15 Garbage
C) 15 15
D) 16 15

ANSWER= (D) 16 15

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Q.6 —- is range of char data type in c ?

A) -127 to 128
B) -128 to 127
C) -32768 to 32767
D) -32767 to 32768

ANSWER= (B) -128 to 127

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Q.7 Storage size of float data type is —— bytes

A) 1
B) 2
C) 3
D) 4

ANSWER= (D) 4

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Q.8 Storage size of int data type is —— bytes

A) 1
B) 2
C) 3
D) 4

ANSWER= (B) 2

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Q.9 Storage size of double data type is —— bytes

A) 2
B) 4
C) 8
D) 16

ANSWER= (C) 8

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Q.10 Find out the output for the following program

  void main()
  {
  float x = ‘a’;
  printf(“%f”, a);
  }

A) a
B) 0.0000
C) 97.000000
D) Error

ANSWER= (C) 97.000000

Explanation ASCII value of a is 97, the same is assigned to the float variable and printed.
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Q.11 — is an empty data type.

A) char
B) int
C) void
D) structure

ANSWER= (C) void

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Q.12 Enumerated data types define using — keyword

A) char
B) enum
C) struct
D) None

ANSWER= (B) enum

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Q.13 —- value can not be changed during program execution.

A) Variable
B) Constants
C) Integer
D) None

ANSWER= (B) Constants

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Q.14 What is the return_type of sqrt() ?

A) int
B) char
C) float
D) double

ANSWER= (D) double

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Q.15 Find out the output for the following program

  void main()
  {
  int n=1;
  while(n<=5)
  printf(“%d”,++n);
  }

A) 7
B) 2 3 4 5 6
C) 5
D) 1 2 3 4 5

ANSWER= (B) 2 3 4 5 6

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Q.16 Which datatype will throw an error when we perform modulus operation(%) ?

A) int
B) shor
C) float
D) None

ANSWER= (C) float

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Q.17 The format identifier “%i” is used for which datatype ?

A) int
B) char
C) float
D) double

ANSWER= (A) int

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Q.18 Signed and unsigned representataion is available for

A) long
B) int
C) float
D) double

ANSWER= (B) int

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Q.19 Size of a Turbo C C++ Compiler is ?

A) 16 bit
B) 32 bit
C) 64 bit
D) None

ANSWER= (A) 16 bit

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Q.20 Find out the output for the following program

  void main()
  {
  int x=2;
  x+=5
  printf(“%d”,x);
  }

A) 2
B) 5
C) 7
D) Garbage

ANSWER= (C) 7

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Q.21 —- is range of int data type in c ?

A) -127 to 128
B) -128 to 127
C) -32768 to 32767
D) -32767 to 32768

ANSWER= (C) -32768 to 32767

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