Set Technology

Basics of C Language

This Test will cover the basic concepts of C Langauge, including basic syntax, Operators, Variables, Data types etc.

Q.1 __________ is a collection of built-in functions that can be used directly in C programs?

A. Preprocessor file	B. Main file
C. header file	D. Ordinary file

View Ans

C. header file

Q.2 Which of the following function reads a character (only one at a time) from the terminal and return it as an integer?

A. gets()	B. getchar()
C. scanf()	D. getc()

View Ans

B. getchar()

Q.3 Which of the following statement is true according to C syntax rule?

A. All C instruction must be written in Upper case character.

B. C is not a case sensitive language.

C. All C statement must end with a semicolon.

D. All of the above.

View Ans

C. All C statement must end with a semicolon.

Q.4 Which of the following is not a valid keyword in C language?

A. case	B. register
C. native	D. typedef

View Ans

C. native

Q.5 The first character of an identifier in C langauge can contain?

A. only alphabet(a-z, A-Z) or underscore ( _ )

B. only numeric character(0-9)

C. only special character($, #, @)

D. all of the above

View Ans

A. only alphabet(a-z,A-Z) or underscore( _ )

Q.6 Which operator in C is used to return the size of a variable?

A. size operator	B. sizeof operator
C. & operator	D. ternary operator

View Ans

B. sizeof operator

Q. 7 Which is the legal range of values for an int datatype in C language ?

A. 0 to 65535	B. -128 to 127
C. -32,768 to 32,767	D. 0 to 255

View Ans

C. -32,768 to 32,767

Q.8 Which data type is used to store real numbers in C language?

A. int	B. float
C. char	D. none of the above

View Ans

B. float

Q.9  Point out the error in the following program ?

#include<stdio.h>
int main()
{
    void v = 0;
    printf("%d", v);
    return 0;
}

A. Error: Declaration syntax error	B. Program terminates abnormally
C. No error	D. None of these

View Ans

A. Error: Declaration syntax error

Q.10  Which of the following is not a logical operator?

A. &	B. &&
C. ||	D. !

View Ans

A. &