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

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

2 / 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

3 / 50

To develop which operating, C language was invented?

A. Linux

B. Unix

C. Android

D. Mac

4 / 50

The printf() returns __________ value when an error occurs

a.) Positive value

b.) Zero

c.) Negative Value

d.) None of these

5 / 50

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

a. #include

b. #header

c. #include

d. #include

6 / 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

7 / 50

The maximum size of ‘float’ variable is ________________.

a) 2

b) 4

c) 8

d) 6

8 / 50

The maximum length of a variable in C is ______________.

a) 8

b) 16

c) 31

d) 64

9 / 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

10 / 50

*@Ac# is a type of ________________ data.

a) Symbolic

b) Alphanumeric

c) Alphabetic

d) Numeric

11 / 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

12 / 50

C is available for which OS?

a) DOS

b) Windows

c) unix

d) All of above

13 / 50

Percentage style of “unsigned int” is ____________.

a.) %ld

b.) %c

c.) %u

d.) %lu

14 / 50

a+=4 means ____________.

a.) a=a+4

b.) a+4=a

c.) a=4

d.) a=4+4

15 / 50

Null character is represented by ___________.

a.) NULL

b.) o

c.)

d.) All of above

16 / 50

Every C program must atleast contain______ function(s).

a. Only one

b. Only two

c. Must contain one

d. One or more

17 / 50

C language is a ___.

A. Procedural oriented programming language

B. General purpose programming language

C. Structured programming

D. All of the above

18 / 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;

19 / 50

In scanf() following special symbol is used

a. %,#

b. %,@

c. %,$

d. %,&

20 / 50

Find a correct C Keyword below.

a) breaker

b) default

c) shorter

d) go to

21 / 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

22 / 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

23 / 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

24 / 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;

25 / 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

26 / 50

In C language ‘a’ represents ______________________.

a.) a digit

b.) an integer

c.) a character

d.) a word

27 / 50

What is the extension of a C language header file?

A. .c

B. .cpp

C. .c99

D. .h

28 / 50

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

a.A.

b. B.

c. C++.

d. Java.

29 / 50

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

A. Variable

B. Constant

C. Numeric

D. None of the above

30 / 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

31 / 50

All keywords in C are in ____________

a) LowerCase letters

b) UpperCase letters

c) CamelCase letters

d) None of the mentioned

32 / 50

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

a. scanf()

b. get()

c. gets()

d. printf()

33 / 50

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

a) 256

b) 257

c) 258

d) 259

34 / 50

Which is an example of compounded assignment statement?

a.) a=5

b.) a=b

c.) a=b=c

d.) a+=10

35 / 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

36 / 50

In which year was C language developed?

a. 1968

b. 1972

c.1978

d. 1976

37 / 50

The maximum size of ‘double’ variable is _______________.

a.) 1 byte

b.) 4 byte

c.) 6 byte

d.) 8 byte

38 / 50

Which of the following are tokens in C?

a) Keywords

b) Constants

c) Variables

d) All of above

39 / 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

40 / 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

41 / 50

Operators that work on one operand

a) Binary

b) Unary

c) Ternary

42 / 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

43 / 50

User defined data type can be derived by

A. struct

B. enum

C. typedef

D. All of the above

44 / 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;

45 / 50

C was primarily developed as

a. System programming language

b. General purpose language

c. Data processing language

d. Non of above

46 / 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

47 / 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

48 / 50

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

a) char

b) int

c) float

d) double

49 / 50

The size of a string variable is __________.

a.) 1 byte

b.) 10 byte

c.) 20 byte

d.) Not specific

50 / 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

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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.
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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?

Identify wrong C keyword below

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

To develop which operating, C language was invented?

The printf() returns __________ value when an error occurs

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

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

The maximum size of ‘float’ variable is ________________.

The maximum length of a variable in C is ______________.

preprocessor directives follow the following syntax rule________.

*@Ac# is a type of ________________ data.

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

Percentage style of “unsigned int” is ____________.

Null character is represented by ___________.

Every C program must atleast contain______ function(s).

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

In scanf() following special symbol is used

Find a correct C Keyword below.

What is the difference between float and double in C?

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

What is constant?

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

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

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

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

Which is correct with respect to size of the datatypes?

All keywords in C are in ____________

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

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

Which is an example of compounded assignment statement?

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

In which year was C language developed?

The maximum size of ‘double’ variable is _______________.

Which of the following are tokens in C?

What is an identifier in C language?

Operators that work on one operand

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

User defined data type can be derived by

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

C was primarily developed as

The getchar () function reads a_________

”%d” specifies_________

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

The size of a string variable is __________.

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 ___________