C - Operators and Expressions Questions and Answers

Operators and expressions are the core of performing calculations and logic in C programs. This section features C programming questions and answers focusing on arithmetic, relational, logical, bitwise, and assignment operators. Designed for TCS, Infosys, and Capgemini aspirants, these MCQs test both concept clarity and coding accuracy. Practicing these C Operators and Expressions questions with answers helps you strengthen your understanding of how C executes and evaluates expressions—essential for both programming interviews and technical exams.

C - Operators and Expressions

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31.  Identify the valid expression (s). 

a = 0
a = b= 0
a% = (x % 10)
all the above

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32.  Explicit type conversion is known as 

casting
coercion
options a and b
upward type conversion

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33.  Which expression yields correct value for the expression 1/3 ?

1. / 3
(float) 1/3
options a and b
float (1/3)

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34.  The associativity of ++ operator is 

right to left
left to right
a for arithmetic expression and b for pointer expression
a for pointer expression and b for arithmetic expression

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35.  the associativity of assignment operators is. 

right to left
left to right
a for arithmetic expression and b for pointer expression
a for pointer expression and b for arithmetic expression

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36.  The associativity of comma operator is 

right to left
left to right
option a for arithmetic expression and b for pointer expression
option a for pointer expression and b for arithmetic expression

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37.  the associativity of ! operator is 

right to left
left to right
option a for arithmetic expression and b for pointer expression
option a for pointer expression and b for arithmetic expression

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38.  The associativity of ~ opeator is 

right to left
left to right
option a for arithmetic expression and b for pointer expression
option a for pointer expression and b for arithmetic expression

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39.  the associativity of indirection operator is 

right to left
left to right
option a for arithmetic expression and b for pointer expression
option a for pointer expression and b for arithmetic expression

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40.  The associativity of bitwise AND, OR XOR is 

right to left
left to right
option a for arithmetic expression and b for pointer expression
option a for pointer expression and b for arithmetic expression

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C - Operators and Expressions Questions and Answers

C - Operators and Expressions

31. &nbsp;Identify the valid expression (s).&nbsp;

32. &nbsp;Explicit type conversion is known as&nbsp;

33. &nbsp;Which expression yields correct value for the expression 1/3 ?

34. &nbsp;The associativity of ++ operator is&nbsp;

35. &nbsp;the associativity of assignment operators is.&nbsp;

36. &nbsp;The associativity of comma operator is&nbsp;

37. &nbsp;the associativity of ! operator is&nbsp;

38. &nbsp;The associativity of ~ opeator is&nbsp;

39. &nbsp;the associativity of indirection operator is&nbsp;

40. &nbsp;The associativity of bitwise AND, OR XOR is&nbsp;

C Language

31. Identify the valid expression (s).

32. Explicit type conversion is known as

33. Which expression yields correct value for the expression 1/3 ?

34. The associativity of ++ operator is

35. the associativity of assignment operators is.

36. The associativity of comma operator is

37. the associativity of ! operator is

38. The associativity of ~ opeator is

39. the associativity of indirection operator is

40. The associativity of bitwise AND, OR XOR is