Expressions Questions and Answers
Expressions in C Language are fundamental to understanding how operations, precedence, and evaluation work in programming. Practicing programming questions and answers related to C expressions helps students master operator hierarchy and logical computation. Commonly asked in TCS, Infosys, and Wipro placement papers, these C programming MCQs test both conceptual clarity and coding accuracy. This section provides C language expressions questions with step-by-step explanations and solutions to prepare you for technical interviews and competitive programming tests.
Expressions
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26 questions
1. Which of the following is the correct order of evaluation for the below expression? z = x + y * z / 4 % 2 - 1
- * / % + - =
- = * / % + -
- / * % - + =
- * % / - + =
2. Which of the following correctly shows the hierarchy of arithmetic operations in C?
- / + * -
- * - / +
- + - / *
- / * + -
3. Which of the following is the correct usage of conditional operators used in C?
- a>b ? c=30 : c=40;
- a>b ? c=30;
- max = a>b ? a>c?a:c:b>c?b:c
- return (a>b)?(a:b)
4. Which of the following is the correct order if calling functions in the below code? a = f1(23, 14) * f2(12/4) + f3();
- f1, f2, f3
- f3, f2, f1
- Order may vary from compiler to compiler
- None of above
5. Which of the following are unary operators in C? 1. ! 2. sizeof 3. ~ 4. &&
- 1, 2
- 1, 3
- 2, 4
- 1, 2, 3
6. In which order do the following gets evaluated Relational Arithmetic Logical Assignment
- 2134
- 1234
- 4321
- 3214
8. Which of the following is a valid C identifier?
- 2var
- var_name
- var-name
- var name