C Objective Questions Page 8 of 10

Home » C » C Questions
Page 8 of 10 (141- 160)

Question: 141

What is important difference between structure & union?

(A) There is no difference
(B) Union takes less memory
(C) Union is faster
(D) Structure is faster

C Compiler IDE
Level: Expert Category of MCQ: structure

Question: 142

Is it necessary that all elements of structure should be different in size?

(A) Yes
(B) No

C Compiler IDE
Level: Practitioner Category of MCQ: structure

Question: 143

Can we use access specifiers(private, public, protected) with structures?

(A) Yes
(B) No

C Compiler IDE
Level: Practitioner Category of MCQ: structure

Question: 144

Is it mandatory that the size of all elements in a union should be same?

(A) Yes
(B) No

C Compiler IDE
Level: Practitioner Category of MCQ: union

Question: 145

Are self referential structures are possible in C?

(A) Yes
(B) No

C Compiler IDE
Level: Beginner Category of MCQ: structure

Question: 146

#include <stdio.h>

int main()
{
struct xyz{
int a;
};

struct xyz obj1={1};
struct xyz obj2 = obj1;
printf("%d", obj2.a);
obj2.a = 100;
printf("%d", obj1.a);
return 0;
}

(A) 1100
(B) 11
(C) 0100
(D) 10

C Compiler IDE
Level: Practitioner Category of MCQ: structure

Question: 147

Can we compare two structures using any built in operator?

(A) Yes
(B) No

C Compiler IDE
Level: Expert Category of MCQ: structure

Question: 148

Which predefined function is used to write whole structure into a file ?

(A) write()
(B) fwrite()
(C) swrite()
(D) None of the above

C Compiler IDE
Level: Expert Category of MCQ: structure

Question: 149

How to minimize the padding issues with structure?

(A) Order members from largest to smallest
(B) Order memebers from smallest to largest
(C) By using only char data type
(D) By using referencial pointer

C Compiler IDE
Level: Expert Category of MCQ: operators

Question: 150

The output of Assembler in process of compilation is

(A) Assembly Code
(B) Object Code
(C) Executable
(D) .i file

C Compiler IDE
Level: Practitioner Category of MCQ: assembler

Question: 151

The input to the Assembler in the compilation process is

(A) Assembly Code
(B) .i file produced by Preprocessor
(C) Object Code
(D) Source Code

C Compiler IDE
Level: Expert Category of MCQ: assembler

Question: 152

What does .txt section contains?

(A) Executable Instructions
(B) Un-initialized Global Variables
(C) Un-initialized Static Variables
(D) Initialized Static & Global Variables

C Compiler IDE
Level: Expert Category of MCQ: compilation

Question: 153

What will be the output of following code?
#include<stdio.h>

int main()
{
int a=4*4+2;
printf("%d",--a);
return 0;
}

(A) 17
(B) 23
(C) 24
(D) 18

C Compiler IDE
Level: Beginner Category of MCQ: loops

Question: 154

#include <stdio.h>

void decrement();

int main()
{
decrement();
decrement();
decrement();
return 0;
}

void decrement()
{
 static int i = 5;
 printf("%d",i);
 i--;
}

(A) 555
(B) 543
(C) 545
(D) 544

C Compiler IDE
Level: Practitioner Category of MCQ: function

Question: 155

Find the output of below code. Is it a++ or ++b in statement a+++b.

#include <stdio.h>

int main()
{
    int a=5, b=2;
    printf("%d", a+++b);

    return 0;
}

(A) Compilation Error
(B) 8
(C) 7
(D) 0

C Compiler IDE
Level: Expert Category of MCQ: operators

Question: 156

#include <stdio.h>

int main()
{
printf("%d",printf("HELLO"));

return 0;

}

(A) Compilation Error
(B) Hello
(C) 5Hello
(D) Hello5

C Compiler IDE
Level: Practitioner Category of MCQ: function

Question: 157

Find the output if n is 6

#include <stdio.h>

int main()
{
  int sum=0, i, j,n;
  n=6;
  
  for(i=1; i<=n; i++){      
      for(j=1; j<=n; j++){
          sum += (i+j);
      }
  }

printf("%d", sum);

return 0;
}

(A) 150
(B) 168
(C) 195
(D) 252

C Compiler IDE
Level: Beginner Category of MCQ: loops

Question: 158

int main()
{
  int a = 1;
  short int  b = 2;
  float c = 3;
  if(sizeof((a == 2) ? c : b) == sizeof(float))
  {
     printf("float");
  }
  else   if(sizeof((a == 2) ? c : b) == sizeof(short int))
  {
     printf("short int");
  }
return 0;                                                                                                             
}

(A) float
(B) short int
(C) nothing
(D) compilation error

C Compiler IDE
Level: Expert Category of MCQ: operators

Question: 159

#include "stdio.h"
main()
{
int a[] = {10,20,30};
printf("%d",*a+1);
}

(A) 10
(B) 20
(C) 11
(D) 21

C Compiler IDE
Level: Beginner Category of MCQ: loops

Question: 160

#include <stdio.h>
int main(void)
{
    char str1[] = "Hello. How are you?";
    char str2[21];
    int pos;

    for(pos=0; pos<21; pos++);
   {
      str2[pos] = str1[pos];
   }
   
   printf("str1: %s, str2: %s", str1, str2);
   return 0;
}

(A) str1: Hello. How are you?, str2: Hello. How are you?
(B) str1: Hello. How are you?, str2: Hello. How are you?nullnull
(C) str1: Hello. How are you?, str2: Hello. How are you?garbagevalue
(D) str1: Hello. How are you?, str2: garbagevalue

C Compiler IDE
Level: Expert Category of MCQ: arrays

C Programming Test
Compile C code here

Browse C Categories

Preprocessor Assembler Compilation Datatypes Arrays Variables Pointers Functions Loops Switch Structures Union Enum Goto & Labels Storage Classes Malloc & free Macros Conditional Operators File Handling gcc Others

Switch to C++ Questions

C Objective Questions Page 8 of 10

Browse C Categories

MCQs

Problems

Projects

Compiler

Online Test