C Programming MCQ Online Test top 50 Check Results

Top 50 C Programming MCQ Online Test

Discover a wide range of C programming MCQ online test neatly organized by topics. Challenge yourself on fundamentals, data types, Features of C, Variables, Input and Output, Operators and more. Hone your C programming expertise with focused MCQs, ideal for students, developers, and those striving for excellence in C programming assessments.

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C Programming MCQs: Topic-Wise Mastery

Master C programming with targeted MCQs! Test your knowledge on fundamentals, data types, functions, and more. Ideal for students and developers looking to excel.

1 / 50

What is the correct syntax to declare a variable in C?

A. data_type variable_name;

B. data_type as variable_name;

C. variable_name data_type;

D. variable_name as data_type;

2 / 50

Which of the following is a User-defined data type?

a) struct {char name[10], int age};

b) typedef enum {Mon, Tue, Wed, Thu, Fri} Workdays;

c) typedef int Boolean;

d) all of the mentioned

3 / 50

Every C program must atleast contain______ function(s).

a. Only one

b. Only two

c. Must contain one

d. One or more

4 / 50

The printf() returns __________ value when an error occurs

a.) Positive value

b.) Zero

c.) Negative Value

d.) None of these

5 / 50

Which of the following are tokens in C?

a) Keywords

b) Constants

c) Variables

d) All of above

6 / 50

Which of the following is not a valid variable name declaration?

a) int _a3;

b) int a_3;

c) int 3_a;

d) int _3a

7 / 50

Which one of the following languages is predecessor to c programming language ?

a.A.

b. B.

c. C++.

d. Java.

8 / 50

In which year was C language developed?

a. 1968

b. 1972

c.1978

d. 1976

9 / 50

C is available for which OS?

a) DOS

b) Windows

c) unix

d) All of above

10 / 50

The maximum size of ‘float’ variable is ________________.

a) 2

b) 4

c) 8

d) 6

11 / 50

What is an identifier in C language?

a. An identifier is a combination of alphanumeric characters used for conditional and control statements

B. An identifier is a combination of alphanumeric characters used for any variable, function, label name

C. Both A and B

D. None of the above

12 / 50

All keywords in C are in ____________

a) LowerCase letters

b) UpperCase letters

c) CamelCase letters

d) None of the mentioned

13 / 50

What is the correct syntax to declare a variable in C?

A. data_type variable_name;

B. data_type as variable_name;

C. variable_name data_type;

D. variable_name as data_type;

14 / 50

”%d” specifies_________

a. Integer value to be read or printed

b. Character values tobe read or printed

c. Double values to be read of printed

d. String values to be read or printed

15 / 50

Which is the valid range of “int” data type?

a.) 0 to 256

b.) -32768 to +32767

c.) -32767 to +32768

d.) No particular range

16 / 50

ANSI C permits the use of as many as ________ case labels

a) 256

b) 257

c) 258

d) 259

17 / 50

Find the output of the following program
#include<stdio.h>
int X=40;
void main()
{
int X=20;
printf(“%d\n” X)
}

(a)20

(b)40

(d)Error

18 / 50

Find a correct C Keyword below.

a) breaker

b) default

c) shorter

d) go to

19 / 50

The maximum length of a variable in C is ______________.

a) 8

b) 16

c) 31

d) 64

20 / 50

In scanf() following special symbol is used

a. %,#

b. %,@

c. %,$

d. %,&

21 / 50

The size of a string variable is __________.

a.) 1 byte

b.) 10 byte

c.) 20 byte

d.) Not specific

22 / 50

C was primarily developed as

a. System programming language

b. General purpose language

c. Data processing language

d. Non of above

23 / 50

………. Function is used to display output on screen

a. scanf()

b. get()

c. gets()

d. printf()

24 / 50

In C language ‘a’ represents ______________________.

a.) a digit

b.) an integer

c.) a character

d.) a word

25 / 50

Identify wrong C keyword below

a) auto, double, int, struct

b) break, else, long, switch

c) case, enum, register, typedef

d) char, extern, intern, return

26 / 50

C language is a ___.

A. Procedural oriented programming language

B. General purpose programming language

C. Structured programming

D. All of the above

27 / 50

Which pair is used for single character I/O.?

a.) getchar() and putchar()

b.) scanf() and printf()

c.) input() and output()

d.) None of these

28 / 50

a+=4 means ____________.

a.) a=a+4

b.) a+4=a

c.) a=4

d.) a=4+4

29 / 50

preprocessor directives follow the following syntax rule________.

a. Begin with #and end with semi-colon.

b. End with semi-colon.

c. Begin with # and do not require a semi-colon.

d. They must be include within

30 / 50

User defined data type can be derived by

A. struct

B. enum

C. typedef

D. All of the above

31 / 50

Which data type is most suitable for storing a number 65000 in a 32-bit system?

a) signed short

b) unsigned short

c) long

d) int

32 / 50

The characteristics of the computer system capable of thinking, reasoning and learning is
known as ___________

a) Machine intelligence

b) Human intelligence

c) Artificial intelligence

d) Virtual intelligence

33 / 50

To develop which operating, C language was invented?

A. Linux

B. Unix

C. Android

D. Mac

34 / 50

The maximum size of ‘double’ variable is _______________.

a.) 1 byte

b.) 4 byte

c.) 6 byte

d.) 8 byte

35 / 50

*@Ac# is a type of ________________ data.

a) Symbolic

b) Alphanumeric

c) Alphabetic

d) Numeric

36 / 50

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

37 / 50

Which of the following is not a valid C variable name?

a) int number;

b) float rate;

c) int variable_count;

d) int $main;

38 / 50

Which is an example of compounded assignment statement?

a.) a=5

b.) a=b

c.) a=b=c

d.) a+=10

39 / 50

The format identifier ‘%i’ is also used for _____ data type.

a) char

b) int

c) float

d) double

40 / 50

What is the difference between float and double in C?

A. both are used for the same purpose

B. double can store just double value as compare to float value

C. double is an enhanced version of float and was introduced in C99

D. double is more precise than float and can store 64 bits

41 / 50

What is constant?

A. Constants have fixed values that do not change during the execution of a program

B. Constants have fixed values that change during the execution of a program

C. Constants have unknown values that may be change during the execution of a program

42 / 50

Null character is represented by ___________.

a.) NULL

b.) o

c.)

d.) All of above

43 / 50

Percentage style of “unsigned int” is ____________.

a.) %ld

b.) %c

c.) %u

d.) %lu

44 / 50

Which is/are the disadvantage(s) of C language?

A. No Garbage Collection

B. Inefficient Memory Management

C. Low level of abstraction

D. Lack of Object Orientation

E. All of the above

45 / 50

Which is correct with respect to size of the datatypes?

a) char > int > float

b) int > char > float

c) char < int < double

d) double > char > int

46 / 50

The variables that does not change during the execution of program is ----------

A. Variable

B. Constant

C. Numeric

D. None of the above

47 / 50

How to add standard input or output header file in C program

a. #include

b. #header

c. #include

d. #include

48 / 50

Operators that work on one operand

a) Binary

b) Unary

c) Ternary

49 / 50

What is the extension of a C language header file?

A. .c

B. .cpp

C. .c99

D. .h

50 / 50

The getchar () function reads a_________

a. String from a file

b. Character from a file

c. String from the keyboard

d. Character from the keyboard

Your score is

The average score is 0%

Benefits of C Programming Online MCQ Test:

Self-Assessment: Quickly gauge your understanding of core C programming concepts like data types, operators, control flow, functions, and arrays.
Focused Practice: Target specific areas you might be weak on by choosing quizzes that focus on particular topics.
Instant Feedback: Most online tests provide immediate feedback on your answers, helping you learn from mistakes.
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7. Integer Array in C – How to Declare Int Arrays with C Programming (freecodecamp.org)

8. Pass arrays to a function in C (programiz.com)

Top 50 C Programming MCQ Online Test

Ready to Test Yourself?

What is the correct syntax to declare a variable in C?

Which of the following is a User-defined data type?

Every C program must atleast contain______ function(s).

The printf() returns __________ value when an error occurs

Which of the following are tokens in C?

Which of the following is not a valid variable name declaration?

Which one of the following languages is predecessor to c programming language ?

In which year was C language developed?

The maximum size of ‘float’ variable is ________________.

What is an identifier in C language?

All keywords in C are in ____________

What is the correct syntax to declare a variable in C?

”%d” specifies_________

ANSI C permits the use of as many as ________ case labels

Find the output of the following program#include<stdio.h>int X=40;void main(){int X=20;printf(“%d\n” X)}

Find a correct C Keyword below.

The maximum length of a variable in C is ______________.

In scanf() following special symbol is used

The size of a string variable is __________.

C was primarily developed as

………. Function is used to display output on screen

Identify wrong C keyword below

preprocessor directives follow the following syntax rule________.

User defined data type can be derived by

Which data type is most suitable for storing a number 65000 in a 32-bit system?

The characteristics of the computer system capable of thinking, reasoning and learning isknown as ___________

To develop which operating, C language was invented?

The maximum size of ‘double’ variable is _______________.

*@Ac# is a type of ________________ data.

Which of the following is true for variable names in C?

Which of the following is not a valid C variable name?

Which is an example of compounded assignment statement?

The format identifier ‘%i’ is also used for _____ data type.

What is the difference between float and double in C?

What is constant?

Null character is represented by ___________.

Percentage style of “unsigned int” is ____________.

Which is/are the disadvantage(s) of C language?

Which is correct with respect to size of the datatypes?

The variables that does not change during the execution of program is ----------

How to add standard input or output header file in C program

Operators that work on one operand

The getchar () function reads a_________

Benefits of C Programming Online MCQ Test:

A site for C Programming MCQ Online Test

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Find the output of the following program
#include<stdio.h>
int X=40;
void main()
{
int X=20;
printf(“%d\n” X)
}

The characteristics of the computer system capable of thinking, reasoning and learning is
known as ___________