C Objective Questions And Answers Page 10 of 10

Question: 181

/* Find the output of below C program */

#include "stdio.h"

typedef enum{
    Male, Female
}SEX;

int main()
{
  SEX var = Male;
  printf("%d",var);
  return 0;

}

(A) Male
(B) 0
(C) 1
(D) Compilation Error

C Compiler IDE
Level: Beginner Category: enum

Question: 182

#include "stdio.h"

typedef enum{
    Male=5, Female
}SEX;

int main()
{
  SEX var = Male;
  SEX var1 = Female;
  printf("%d %d",var, var1);
  return 0;

}

(A) Male Female
(B) 0 1
(C) 5 5
(D) 5 6

C Compiler IDE
Level: Practionar Category: enum

Question: 183

#include <stdio.h>

typedef enum{
    Male=-1, Female
}SEX;

int main()
{
  SEX var = Male;
  SEX var1 = Female;
  printf("%d %d",var, var1);
  return 0;

}

(A) -1 0
(B) -1 -2
(C) -1 -1
(D) Compilation Error

C Compiler IDE
Level: Practionar Category: enum

Question: 184

#include <stdio.h>

typedef enum{
    Male, Female
}SEX;

int main()
{
  SEX var = Male;
  SEX var1 = Female;
  printf("%s %s",var, var1); 
  return 0;
}

(A) Male Female
(B) 0 1
(C) Runtime error (Segmentation fault)
(D) Compilation Error: Can't cast

C Compiler IDE
Level: Expert Category: enum

Question: 185

#include <stdio.h>

typedef enum{
    Male, Female=0
}SEX;

int main()
{
  SEX var = Male;
  SEX var1 = Female;
  printf("%d %d",var, var1);
  return 0;
}

(A) 0 0
(B) -1 0
(C) Some Garbage Value 0
(D) Compilation Error

C Compiler IDE
Level: Practionar Category: enum

Question: 186

#include >stdio.h>

typedef enum{
    Male, Female=-1
}SEX;

int main()
{
  SEX var = Male;
  SEX var1 = Female;
  printf("%d %d",var, var1);
  return 0;
}

(A) Compilation Error
(B) Garbage Value 0
(C) -1 -1
(D) 0 -1

C Compiler IDE
Level: Expert Category: enum

Question: 187

/* Assume you are on 32 bit system */

#include <stdio.h>

union example{
    char ch;
    int no;
};

int main(){
    
printf("%d", sizeof(union example));
return 0;
}

(A) 3
(B) 4
(C) 5
(D) 6

C Compiler IDE
Level: Beginner Category: union

Question: 188

union example{

};

int main(){
    
printf("%d", sizeof(union example));
return 0;
}

(A) 0
(B) 1
(C) 2
(D) 4

C Compiler IDE
Level: Beginner Category: loops

Question: 189

/* find the output of below code on Union in C */
#include "stdio.h"

union example{
    int a;
    int b;

};

int main(){
union example obj;
obj.a = 10;
printf("%d %d", obj.a, obj.b);
return 0;
}

(A) 10 0
(B) 10 GarbageValue
(C) 10 10
(D) 0 0

C Compiler IDE
Level: Beginner Category: union

Question: 190

#include "stdio.h"

union example{
    int a;
    int b;

};

int main(){
    union example obj;
    obj.a = 88;
    printf("%d", obj.a);
    obj.b = 99;
    printf("%d", obj.b);
    return 0;
}

(A) 88 88
(B) 99 88
(C) 99 99
(D) 88 99

C Compiler IDE
Level: Beginner Category: union

Question: 191

What is the use of rewind() function in C?

(A) set the position to the beginning point
(B) gives current position in the file
(C) set the position to desire point
(D) None of these

C Compiler IDE
Level: Beginner Category: filehandling

Question: 192

what is the output of the following code
#include "stdio.h"
int main()
{
    while(!printf("hello")){}
	return 0;
}

(A) compilation error
(B) hello
(C) no output
(D) runtime error

C Compiler IDE
Level: Beginner Category: loops

Question: 193

Which of the following are valid statements regarding the ANSI C pointer ptr below?

struct descriptor desc;
struct descriptor const *ptr = &desc;

(A) ptr must refer to desc
(B) ptr may point to any descriptor elsewhere in memory
(C) Incrementing ptr will cause misalignment between ptr and desc
(D) desc may be modified through ptr

C Compiler IDE
Level: Practitioner Category: pointers

Question: 194

What will be the output of following program ?
#include <stdio.h>
void main()
{
char cnt=0;
for(;cnt++;printf("%d",cnt)) ;
printf("%d",cnt);
}

(A) 0 1 2 3 ... infinite times
(B) 0 1 2 ... 127
(C) 0
(D) 1

C Compiler IDE
Level: Beginner Category: loops

Question: 195

#include < stdio.h >
int main()
{
    int tally=0;
    for(;;)
    {
        if(tally==10)
            break;
        printf("%d ",++tally);
    }
    return 0;
}

(A) 0 1 2 3 4 5 6 7 8 9 10
(B) 0 1 2 3 ... infinite times
(C) 1 2 3 4 5 6 7 8 9 10
(D) 1 2 3 4 5 6 7 8 9

C Compiler IDE
Level: Beginner Category: loops

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