C Programming Important Questions and Answers Set - 1
1. What will be the output of the following arithmetic expression ?
5+3*2%10-8*6
A. -37
B. -42
C. -32
D. -28
Answer: A. -37
2. What will be the output of the following statement ?
int a=10; printf(“%d &i”,a,10);
A. error
B. 10
C. 10 10
D. none of these
Answer: D. none of these
3. What will be the output of the following statement ?
printf(“%X%x%ci%x”,11,10,’s’,12);
A. error
B. basc
C. Bas94c
D. none of these
Answer: B. basc
4. What will be the output of the following statements ?
int a = 4, b = 7,c; c = a = = b; printf(“%i”,C.;
A. 0
B. error
C. 1
D. garbage value
Answer: A. 0
5. What will be the output of the following statements ?
int a = 5, b = 2, c = 10, i = a>b
void main()
{ printf(“hello”); main(); }
A. 1
B. 2
C. infinite number of times
D. none of these
Answer: C. infinite number of times
6. What will be output if you will compile
and execute the following c code?
struct marks{
int p:3;
int c:3;
int m:2;
};
void main(){
struct marks s={2,-6,5};
printf(“%d %d %d”,s.p,s.c,s.m);
}
A. 2 -6 5
B. 2 -6 1
C. 2 2 1
D. Compiler error
E. None of these
Answer: C. Compiler error
7. What will be the output of the following statements ?
int x[4] = {1,2,3}; printf(“%d %d
%D”,x[3],x[2],x[1]);
A. 03%D
B. 000
C. 032
D. 321
Answer: C. 032
8. What will be the output of the following statement ?
printf( 3 + “goodbye”);
A. goodbye
B. odbye
C. bye
D. dbye
Answer: D. dbye
9. What will be the output of the following statements ?
long int a = scanf(“%ld%ld”,&a,&A.;
printf(“%ld”,A.;
A. error
B. garbage value
C. 0
D. 2
Answer: B. garbage value
10. What will be the output of the following program ?
#include
void main()
{ int a = 2;
switchA. { case 1:
printf(“goodbye”); break;
case 2:
continue;
case 3:
printf(“bye”);
}
}
A. error
B. goodbye
C. bye
D. byegoodbye
Answer: A. error
11. What will be the output of the following statements ?
int i = 1,j; j=i— -2; printf(“%d”,j);
A. error
B. 2
C. 3
D. -3
Answer: C. 3
12. What will be the output of following
program ?
#include
main()
{
int x,y = 10;
x = y * NULL;
printf(“%d”,x);
}
A. error
B. 0
C. 10
D. garbage value
Answer: B. 0
13. What will be the output of following
statements ?
char x[ ] = “hello hi”;
printf(“%d%d”,sizeof(*x),sizeof(x));
A. 88
B. 18
C. 29
D. 19
Answer: D. 19
14. What will be the output of the following statements ?
int a=5,b=6,c=9,d; d=(ac?1:2):(c>b?6:8));
printf(“%d”,D.;
A. 1
B. 2
C. 6
D. Error
Answer: D. Error
15. What will be the output of the following statements ?
int i = 3;
printf(“%d%d”,i,i++);
A. 34
B. 43
C. 44
D. 33
Answer: B. 34
16. What will be the output of the following program ?
#include
void main()
{
int a = 36, b = 9;
printf(“%d”,a>>a/b-2);
}
A. 9
B. 7
C. 5
D. none of these
Answer: A. 9
17. int testarray[3][2][2] = {1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12};
What value does testarray [2][1][0] in the
sample code above contain?
A. 11
B. 7
C. 5
D. 9
Answer: A. 11
18. void main()
{
int a=10,b=20;
char x=1,y=0;
if(a,b,x,y)
{
printf(“EXAM”);
}
}
What is the output?
A. XAM is printed
B. exam is printed
C. Compiler Error
D. Nothing is printed
Answer: D. nothing is printed
19. What is the output of the following
code?
#include
void main()
{
int s=0;
while(s++<10)>
# define a 10
main()
{
printf(“%d..”,A.;
foo()
printf(“%d”,A.;
}
void foo()
{
#undef a
#define a 50
}
A. 10..10
B. 10..50
C. Error
D. 0
Answer: C. Error
20. main()
{
struct
{
int i;
}xyz;
(*xyz)->i=10;
printf(“%d”,xyz.i);
}
What is the output of this program?
A. program will not compile
B. 10
C. god only knows
D. address of I
Answer: B. 10
