Explore topic-wise MCQs in C Program.

This section includes 36 Mcqs, each offering curated multiple-choice questions to sharpen your C Program knowledge and support exam preparation. Choose a topic below to get started.

1.

Consider the following program fragment, and choose the correct onevoid main(){int a, b = 2, c;a = 2 * (b++);c = 2 * (++b);}

A. = 4, c = 8
B. = 3, c = 8
C. = 3, c = 6
D. = 4, c = 6
E. = 4, c = 6
Answer» B. = 3, c = 8
Discussion
2.

Choose the correct output for the following program.#includevoid main(){int a=10, b=11, c=13, d;d = (a=c, b+=a, c=a+b+c);printf("%d %d %d %d", d, a, b, c);}

A. 0, 13, 11, 13
B. 0, 13, 24, 50
C. 3, 10, 24, 50
D. 0, 13, 24, 13
E. 3, 13, 24, 13
Answer» C. 3, 10, 24, 50
Discussion
3.

Determine output of the following program code.#includevoid main(){int a, b=7;a = b1 : a;printf("%d %d", a, b);}

A. 7
B. 3
C. 3
D. 8
E. one of these
Answer» E. one of these
Discussion
4.

Find the output of the following program.#includevoid main(){int y=10;if(y++>9 && y++!=11 && y++>11)printf("%d", y);elseprintf("%d", y);}

A. 1
B. 2
C. 3
D. 4
E. ompilation error
Answer» C. 3
Discussion
5.

Find the output of the following program.#includevoid main(){int y=10;if(y++>9 && y++!=10 && y++>11)printf("%d", y);elseprintf("%d", y);}

A. 1
B. 2
C. 3
D. 4
E. ompilation error
Answer» D. 4
Discussion
6.

void main(){int a=10, b;b = a++ + ++a;printf("%d %d %d %d", b, a++, a, ++a);}what will be the output when following code is executed?

A. 2 10 11 13
B. 2 12 12 13
C. 2 11 11 11
D. 2 14 12 13
E. 2 13 14 14
Answer» F.
Discussion
7.

Identify the correct output of the following code:void main(){int w=10, x=5, y=3, z=3;if( (w < x ) && (y=z++) )printf("%d %d %d %d", w, x, y, z);elseprintf("%d %d %d %d", w, x, y, z);}

A. 0544
B. 0533
C. 0543
D. 0534
E. 0555
Answer» C. 0543
Discussion
8.

What will be the output of the following code fragment?void main(){printf("%x",-1

A. ff0
B. ff1
C. ff2
D. ff3
E. ff4
Answer» B. ff1
Discussion
9.

What will be the output?void main(){int a=10, b=20;char x=1, y=0;if(a,b,x,y){printf("EXAM");}}

A. AM is printed
B. xam is printed
C. ompiler Error
D. othing is printed
Answer» E.
Discussion
10.

Determine output:void main(){int i=10;i = !i>14;printf("i=%d", i);}

A. 0
B. 4
C.
Answer» D.
Discussion
11.

Determine output:void main(){int i=0, j=1, k=2, m;m = i++ || j++ || k++;printf("%d %d %d %d", m, i, j, k);}

A. 1 2 3
B. 1 2 2
C. 1 2 2
D. 1 2 3
E. one of these
Answer» C. 1 2 2
Discussion
12.

In an expression involving || operator, evaluationI.Will be stopped if one of its components evaluates to falseII.Will be stopped if one of its components evaluates to trueIII. Takes place from right to leftIV.Takes place from left to right

A. and II
B. and III
C. I and III
D. I and IV
E. II and IV
Answer» E. II and IV
Discussion
13.

void main(){ int a=10, b; b = a++ + ++a; printf("%d %d %d %d", b, a++, a, ++a);}what will be the output when following code is executed?%!

A. 12 10 11 13
B. 22 12 12 13
C. 22 11 11 11
D. 22 14 12 13
E. 22 13 14 14
Answer» F.
Discussion
14.

Given b=110 and c=20, what is the value of 'a' after execution of the expression a=b-=c*=5?%!

A. 450
B. 10
C. 110
D. -10
E. -110
Answer» C. 110
Discussion
15.

Identify the correct output of the following code:void main(){ int w=10, x=5, y=3, z=3; if( (w < x ) && (y=z++) ) printf("%d %d %d %d", w, x, y, z); else printf("%d %d %d %d", w, x, y, z);}%!

A. 10 5 4 4
B. 10 5 3 3
C. 10 5 4 3
D. 10 5 3 4
E. 10 5 5 5
Answer» C. 10 5 4 3
Discussion
16.

Which operator from the following has the lowest priority?%!

A. Assignment operator
B. Division operator
C. Comma operator
D. Conditional operator
E. Unary-operator
Answer» D. Conditional operator
Discussion
17.

Which operator has the lowest priority?

A. ++
B. %
C. +
D. ||
E. &&
Answer» E. &&
Discussion
18.

What will be the output of this program on an implementation where int occupies 2 bytes?#include void main(){ int i = 3; int j; j = sizeof(++i + ++i); printf("i=%d j=%d", i, j);}

A. i=4 j=2
B. i=3 j=2
C. i=5 j=2
D. the behavior is undefined
Answer» C. i=5 j=2
Discussion
19.

Which of the following comments about the ++ operator are correct?

A. It is a unary operator
B. The operand can come before or after the operator
C. It cannot be applied to an expression
D. It associates from the right
E. All of the above
Answer» F.
Discussion
20.

What will be the output of the following program?void main(){ int a, b, c, d; a = 3; b = 5; c = a, b; d = (a, b); printf("c=%d d=%d", c, d);}

A. c=3 d=3
B. c=3 d=5
C. c=5 d=3
D. c=5 d=5
Answer» C. c=5 d=3
Discussion
21.

In C programming language, which of the following type of operators have the highest precedence

A. Relational operators
B. Equality operators
C. Logical operators
D. Arithmetic operators
Answer» E.
Discussion
22.

What will be the output of the following code fragment?void main(){ printf("%x",-1

A. fff0
B. fff1
C. fff2
D. fff3
E. fff4
Answer» B. fff1
Discussion
23.

Determine output:void main(){ int i=10; i = !i>14; printf("i=%d", i); }

A. 10
B. 14
C. 0
D. 1
E. None of these
Answer» D. 1
Discussion
24.

What is the output of the following statements?int b=15, c=5, d=8, e=8, a;a = b>c ? c>d ? 12 : d>e ? 13 : 14 : 15;printf("%d", a);

A. 13
B. 14
C. 15
D. 12
E. Garbage Value
Answer» C. 15
Discussion
25.

Determine output:void main(){ int c = - -2; printf("c=%d", c); }

A. 1
B. -2
C. 2
D. Error
Answer» D. Error
Discussion
26.

What is the output of the following statements?int i = 0;printf("%d %d", i, i++);

A. 0 1
B. 1 0
C. 0 0
D. 1 1
E. None of these
Answer» C. 0 0
Discussion
27.

Determine output:void main(){ int i=0, j=1, k=2, m; m = i++ || j++ || k++; printf("%d %d %d %d", m, i, j, k);}

A. 1 1 2 3
B. 1 1 2 2
C. 0 1 2 2
D. 0 1 2 3
E. None of these
Answer» C. 0 1 2 2
Discussion
28.

What number will z in the sample code given below?int z, x=5, y= -10, a=4, b=2;z = x++ - --y*b/a;

A. 5
B. 6
C. 9
D. 10
E. 11
Answer» E. 11
Discussion
29.

In an expression involving || operator, evaluationI.   Will be stopped if one of its components evaluates to falseII.  Will be stopped if one of its components evaluates to trueIII. Takes place from right to leftIV.  Takes place from left to right$

A. I and II
B. I and III
C. II and III
D. II and IV
E. III and IV
Answer» E. III and IV
Discussion
30.

What will be the output?void main(){ int a=10, b=20; char x=1, y=0; if(a,b,x,y){ printf("EXAM"); } }

A. XAM is printed
B. exam is printed
C. Compiler Error
D. Nothing is printed
Answer» E.
Discussion
31.

Which of the following operator takes only integer operands?

A. +
B. *
C. /
D. %
E. None of these
Answer» E. None of these
Discussion
32.

Consider the following program fragment, and choose the correct onevoid main(){ int a, b = 2, c; a = 2 * (b++); c = 2 * (++b);}

A. a = 4, c = 8
B. a = 3, c = 8
C. b = 3, c = 6
D. a = 4, c = 6
E. b = 4, c = 6
Answer» B. a = 3, c = 8
Discussion
33.

Choose the correct output for the following program.#includevoid main(){ int a=10, b=11, c=13, d; d = (a=c, b+=a, c=a+b+c); printf("%d %d %d %d", d, a, b, c);}

A. 50, 13, 11, 13
B. 50, 13, 24, 50
C. 13, 10, 24, 50
D. 50, 13, 24, 13
E. 13, 13, 24, 13
Answer» C. 13, 10, 24, 50
Discussion
34.

Determine output of the following program code.#includevoid main(){ int a, b=7; a = b1 : a; printf("%d %d", a, b);}

A. 3 7
B. 7 3
C. 8 3
D. 3 8
E. None of these
Answer» E. None of these
Discussion
35.

Find the output of the following program.#includevoid main(){ int y=10; if(y++>9 && y++!=11 && y++>11) printf("%d", y); else printf("%d", y);}

A. 11
B. 12
C. 13
D. 14
E. Compilation error
Answer» C. 13
Discussion
36.

Find the output of the following program.#includevoid main(){ int y=10; if(y++>9 && y++!=10 && y++>11) printf("%d", y); else printf("%d", y);}

A. 11
B. 12
C. 13
D. 14
E. Compilation error
Answer» D. 14
Discussion