Table of Contents

    Operators in C: Overview and Examples

    Rumman Ansari September 17, 2026 18,492 views Subject Details
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    MCQ Section

    MCQ 1
    Which bit wise operator is suitable for checking whether a particular bit is on or off?
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    MCQ 2
    Which of the following operator takes only integer operands?
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    MCQ 3
    What is the output of this C code? #include void main() { if(sizeof(int)>-1) printf("yes"); else…
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    MCQ 4
    In an expression involving || operator, evaluation I. Will be stopped if one of its components…
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    MCQ 5
    What is the output of this C code? #include int main() { int i = -5; int k = i %4; printf("%dn",…
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    MCQ 6
    Which bitwise operator is suitable for turning on a particular bit in a number?
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    MCQ 7
    What is the output of this C code? #include void main() { int i=0, j=1, k=2, m; m = i++ || j++ ||…
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    MCQ 8
    Which bitwise operator is suitable for turning off a particular bit in a number?
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    MCQ 9
    What is the output of this C code? #include int main() { int i = 5; int l = i / -4; int k = i % -4;…
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    MCQ 10
    What is the output of this C code? #include void main() { int c = - -2; printf("c=%d", c); }
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    MCQ 11
    What is the output of this C code? #include int main() { int i = 7; i = i / 4; printf("%d\n", i);…
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    MCQ 12
    In which numbering system can the binary number 1011011111000101 be easily converted to?
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    MCQ 13
    What is the output of this C code? #include void main() { int i=10; i = !i>14; printf("i=%d", i); }
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    MCQ 14
    What is the value of x in this C code? #include void main() { int x = 4 *5 / 2 + 9; printf("%d",x);…
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    MCQ 15
    Assunming, an integer is 2 byte, What will be the output of the program? #include int main() {…
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    MCQ 16
    What is the output of this C code? #include void main() { int x = 4.3 % 2; printf("Value of x is…
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    MCQ 17
    If an unsigned int is 2 bytes wide then, What will be the output of the program? #include int…
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    MCQ 18
    In C programming language, which of the following type of operators have the highest precedence
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    MCQ 19
    Assuming an integer 2-bytes, What will be the output of the program? #include int main() {…
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    MCQ 20
    What is the output of this C code? #include void main() { int y = 3; int x = 7 % 4 * 3 / 2;…
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    MCQ 21
    What will be the output of the following program? #include void main() { int a, b, c, d; a = 3; b =…
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    MCQ 22
    If an unsigned int is 2 bytes wide then, What will be the output of the program? #include int…
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    MCQ 23
    What is the output of this C code? #include void main() { int a = 5; int b = ++a + a++ + --a;…
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    MCQ 24
    Which of the following comments about the ++ operator is correct?
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    MCQ 25
    What will be the output of the program? #include int main() { unsigned char i = 0x80;…
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    MCQ 26
    What will be the output of this program on an implementation where int occupies 2 bytes?
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    MCQ 27
    The precedence of arithmetic operators is (from highest to lowest)?
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    MCQ 28
    What will be the output of the program? #include int main() { printf("%d >> %d %d >> %d\n", 4 >> 1,…
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    MCQ 29
    Which of the following is not an arithmetic operation?
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    MCQ 30
    Which operator has the lowest priority?
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    MCQ 31
    Which of the following data type will throw an error on modulus operation(%)?
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    MCQ 32
    What is the output of this C code? #include int main() { int a = 20; double b = 15.6; int c; c = a…
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    MCQ 33
    What will be the output? #include void main(){ int a=10, b=20; char x=1, y=0; if(a,b,x,y){…
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    MCQ 34
    What will be the output of the program? #include int main() { char c=48; int i, mask=01; for(i=1; i
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    MCQ 35
    What is the output of this C code? #include int main() { int a = 20, b = 15, c = 5; int d; d = a ==…
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    MCQ 36
    What will be the output? #include void main() { int z, x=5, y= -10, a=4, b=2; z = x++ - --y*b/a;…
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    MCQ 37
    What is the output of this C code? #include void main() { int x = 0; if (x = 0) printf("It's…
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    MCQ 38
    What is the output of this C code? #include void main() { int k = 8; int x = 0 == 1 && k++;…
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    MCQ 39
    What is the output of the following Program?
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    MCQ 40
    What is the output of the following Program?
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    MCQ 41
    What is the output of this C code? #include void main() { char a = 'a'; int x = (a % 10)++;…
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    MCQ 42
    What will be the output of the program? #include int main() { printf("%d %d\n", 32-0); return 0; }
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    MCQ 43
    What will be the output of the program? #include int main() { int i=32, j=0x20, k, l, m; k=i|j;…
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    MCQ 44
    What will be the output of the following code fragment?(32-bit machine)
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    MCQ 45
    What will be the output of the program? #include int main() { int i=4, j=8; printf("%d, %d, %d\n",…
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    MCQ 46
    Find the output of the following program #include void main() { int y=10; if(y++>9 && y++!=10 &&…
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    MCQ 47
    What will be the output of the program? #include int main() { unsigned int res; res = (64…
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    MCQ 48
    Find the output of the following program. #include void main() { int y=10; if(y++>9 && y++!=11 &&…
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    MCQ 49
    Determine output of the following program code. #include void main() { int a, b=7; a = b1 : a;…
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    MCQ 50
    Choose the correct output for the following program. #include void main() { 1 < 2 ? return 1:…
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    MCQ 51
    Choose the correct output for the following program. #include void main() { int a=10, b=11, c=13,…
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    MCQ 52
    What is the output of this C code? #include int main() { int x = 2, y = 1; x *= x + y;…
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    MCQ 53
    Consider the following program fragment, and choose the correct one #include void main() { int a, b…
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    MCQ 54
    Which of the following statements are correct about the program? #include int main() { unsigned int…
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    MCQ 55
    Which operator from the following has the lowest priority?
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    MCQ 56
    What is the output of this C code? #include int main() { int x = 2, y = 2; x /= x / y;…
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    MCQ 57
    Which of the following statements are correct about the program? #include int main() { unsigned int…
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    MCQ 58
    What is the output of this C code? #include int main() { int x = 1, y = 0; x &&= y; printf("%d\n",…
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    MCQ 59
    Identify the correct output of the following code: #include void main() { int w=10, x=5, y=3, z=3;…
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    MCQ 60
    What is the type of the below assignment expression if x is of type float, y is of type int? y = x…
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    MCQ 61
    Given b=110 and c=20, what is the value of 'a' after execution of the expression a=b-=c*=5?
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    MCQ 62
    Operation "a = a * b + a" can also be written as:
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    MCQ 63
    for c = 2, value of c after c
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    MCQ 64
    What is the output of this C code? #include int main() { int a = 1, b = 2; a += b -= a; printf("%d…
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    MCQ 65
    Left shifting a number by 1 is always equivalent to multiplying it by 2.
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    MCQ 66
    What is the output of this C code? int main() { int a = 4, n, i, result = 0; scanf("%d", n); for (i…
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    MCQ 67
    Which of the following is an invalid assignment operator?
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    MCQ 68
    What is the output of this C code? int main() { int c = 2 ^ 3; printf("%d\n", c); }
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    MCQ 69
    What is the output of this C code? int main() { unsigned int a = 10; a = ~a; printf("%d\n", a); }
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    MCQ 70
    What is the output of this C code? int main() { if (7 & 8) printf("Honesty"); if ((~7 & 0x000f) ==…
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    MCQ 71
    What is the output of this C code? int main() { int a = 10; if (a == a--) printf("TRUE 1\t"); a =…
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    MCQ 72
    Relational operators cannot be used on:
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    MCQ 73
    What is the output of this C code? int main() { int x = -2; if (!0 == 1) printf("yes\n"); else…
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    MCQ 74
    What is the output of this C code? int main() { int y = 0; if (1 |(y = 1)) printf("y is %d\n", y);…
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    MCQ 75
    What is the output of this C code? int main() { int y = 1; if (y & (y = 2)) printf("true %d\n");…
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    MCQ 76
    What is the difference between the following 2 codes? //Program 1 int main() { int d, a = 1, b = 2;…
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    MCQ 77
    What is the output of this C code? int main() { int a = 1, b = 1, c; c = a++ + b; printf("%d, %d",…
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    MCQ 78
    What is the output of this C code? int main() { int a = 2; if (a >> 1) printf("%d\n", a); }
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    MCQ 79
    What is the output of this C code? void main() { int x = 97; int y = sizeof(x++); printf("x is %d",…
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    MCQ 80
    What is the output of this C code? void main() { int x = 4, y, z; y = --x; z = x--;…
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    MCQ 81
    What is the output of this C code? void main() { int x = 4; int *p = &x; int *k = p++; int r = p -…
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    MCQ 82
    Are logical operators sequence points?
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    MCQ 83
    Does logical operators in C language are evaluated with short circuit?
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    MCQ 84
    The result of a logical or relational expression in C is?
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    MCQ 85
    What will be the value of d in the following program? int main() { int a = 10, b = 5, c = 5; int d;…
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    MCQ 86
    What is the output of this C code? int main() { int a = 10, b = 5, c = 3; b != !a; c = !!a;…
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    MCQ 87
    What is the output of this C code? void main() { int a = 5, b = -7, c = 0, d; d = ++a && ++b ||…
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    MCQ 88
    What is the output of this C code? void main() { int a = -5; int k = (a++, ++a); printf("%d\n", k);…
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    MCQ 89
    What is the output of this C code?
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    MCQ 90
    What is the output of this C code? int main() { int x = -2; x = x >> 1; printf("%d\n", x); }
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    MCQ 91
    What is the output of this C code? int main() { if (~0 == 1) printf("yes\n"); else printf("no\n"); }
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    MCQ 92
    What is the output of this C code? int main() { int x = 1, y = 0, z = 3; x > y ? printf("%d", z) :…
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    MCQ 93
    What is the output of this C code? void main() { int x = 1, z = 3; int y = x
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    MCQ 94
    What is the output of this C code? void main() { int x = 0, y = 2, z = 3; int a = x & y | z;…
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    MCQ 95
    What is the final value of j in the below code? int main() { int i = 0, j = 0; if (i && (j = i +…
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    MCQ 96
    What is the output of this C code? int main() { int i = 1; if (i++ && (i == 1)) printf("Yes\n");…
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    MCQ 97
    What is the output of this C code? int main() { int a = 1, b = 1, d = 1; printf("%d, %d, %d", ++a +…
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    MCQ 98
    What is the output of this C code? int main() { int a = 10, b = 10; if (a = 5) b--; printf("%d,…
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    MCQ 99
    What is the output of this C code? int main() { int i = 0; int j = i++ + i; printf("%d\n", j); }
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    MCQ 100
    What is the output of this C code? int main() { int i = 2; int j = ++i + i; printf("%d\n", j); }
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    MCQ 101
    What is the output of this C code? void main() { int a = 5, b = -7, c = 0, d; d = ++a && ++b ||…
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    MCQ 102
    What is the output of this C code? void main() { int a = -5; int k = (a++, ++a); printf("%d\n", k);…
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    MCQ 103
    What is the output of this C code? void main() { int x = 1, y = 0, z = 5; int a = x && y || z++;…
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    MCQ 104
    What is the output of this C code? void main() { int x = 1, y = 0, z = 5; int a = x && y && z++;…
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    MCQ 105
    Comment on the output of this C code? int main() { int i = 2; int i = i++ + i; printf("%d\n", i); }
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    MCQ 106
    What is the output of this C code? int main() { int i = 0; int x = i++, y = ++i; printf("%d % d\n",…
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    MCQ 107
    What is the output of this C code? void main() { int x = 97; int y = sizeof(x++); printf("X is %d",…
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    MCQ 108
    What is the output of this C code? void main() { int x = 4, y, z; y = --x; z = x--;…
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    MCQ 109
    What will be the output of the following program? #include"stdio.h" main() { int i, j, k, l, m;…
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    MCQ 110
    Which of the following Bitwise operators can be used efficiently to swap two numbers?
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    MCQ 111
    Which of the following is not logical operator?
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    MCQ 112
    In mathematics and computer programming, which is the correct order of mathematical operators ?
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    MCQ 113
    What would be the output of the following program? #include void main() { char *s1, *s2; printf("%d…
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    MCQ 114
    What will the the output of the following program? #include "stdio.h" int main() { int x, y = 5, z…
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    MCQ 115
    What will the output of the follwing code? #include // Assume base address of "ABCDEQuiz" to be…
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    MCQ 116
    What is the purpose of a '?' in programming languages?
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