C Language Multiple Choice Question MCQ
Categories: PROGRAMMING LANGUAGE
Ques 1. Who is the father of C language? a) Steve Jobs b) James Gosling c) Dennis Ritchie d) Rasmus Lerdorf Answer: c Ques 2. Which of the following is not a valid C variable name? a) int number; b) float rate; c) int variable_count; d) int $main; Answer: d Ques 3. All keywords in C are in ____________ a) LowerCase letters b) UpperCase letters c) CamelCase letters d) None of the mentioned Answer: a Ques 4. Which of the following is true for variable names in C? a) They can contain alphanumeric characters as well as special characters b) It is not an error to declare a variable to be one of the keywords(like goto, static) c) Variable names cannot start with a digit d) Variable can be of any length Answer: c Ques 5. Which is valid C expression? a) int my_num = 100,000; b) int my_num = 100000; c) int my num = 1000; d) int $my_num = 10000; Answer: b Ques 6. Which of the following cannot be a variable name in C? a) volatile b) true c) friend d) export Answer: a Ques 7. What is short int in C programming? a) The basic data type of C b) Qualifier c) Short is the qualifier and int is the basic data type d) All of the mentioned Answer: c Ques 8. Which of the following declaration is not supported by C language? a) String str; b) char *str; c) float str = 3e2; d) Both “String str;” and “float str = 3e2;” Answer: a Ques 9. Which keyword is used to prevent any changes in the variable within a C program? a) immutable b) mutable c) const d) volatile Answer: c Ques 10. What is the result of logical or relational expression in C? a) True or False b) 0 or 1 c) 0 if an expression is false and any positive number if an expression is true d) None of the mentioned Answer: b Ques 11. Which of the following typecasting is accepted by C language? a) Widening conversions b) Narrowing conversions c) Widening & Narrowing conversions d) None of the mentioned Answer: c Ques 12. Where in C the order of precedence of operators do not exist? a) Within conditional statements, if, else b) Within while, do-while c) Within a macro definition d) None of the mentioned Answer: d Ques 13. Which of the following is NOT possible with any 2 operators in C? a) Different precedence, same associativity b) Different precedence, different associativity c) Same precedence, different associativity d) All of the mentioned Answer: c Ques 14. What is an example of iteration in C? a) for b) while c) do-while d) all of the mentioned Answer: d Ques 15. Functions can return enumeration constants in C? a) true b) false c) depends on the compiler d) depends on the standard Answer: a