Welcome to the Input and Output in C MCQs Page

Dive deep into the fascinating world of Input and Output in C with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Input and Output in C, a crucial aspect of C Programming. In this section, you will encounter a diverse range of MCQs that cover various aspects of Input and Output in C, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within C Programming.

Check out the MCQs below to embark on an enriching journey through Input and Output in C. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of C Programming.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Input and Output in C. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Input and Output in C MCQs | Page 41 of 42

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C Programming Fundamentals

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Macro and Preprocessor

Q401.

What is an Escape Sequence in C language?

An escape sequence is a combination of two characters starting with Back Slash always.

An escape sequence is usually part of a string to tell compiler to produce New Lines, New tabs, Single or Double quotes etc

An escape sequence is used to format the output to look in desired way.

All of the above

Discuss

Answer: (d).All of the above

Q402.

Choose a correct statement about C Escape Sequences.

\n produces new line.

\t produces one tab space (white spaces)

\b produces one Backspace

All of the above

Discuss

Answer: (d).All of the above

Q403.

What is a format specifier in C language?

A format Specifier tells compiler to treat a variable value is predefined way.

Different format specifiers are used to print different type of data.

Format specifiers are used to write data to files in a formatted way.

All of the above

Discuss

Answer: (d).All of the above

Q404.

Choose a valid C format specifier.

%d prints integer constants

%u prints unsigned integer constants

%ld prints signed long and %lu prints unsigned long constants

All of the above

Discuss

Answer: (d).All of the above

Q405.

Choose a correct statement about C format Specifiers.

%c prints unsigned or signed character constants.

%s prints string constants

%l or %L prints long constants.

All of the above

Discuss

Answer: (d).All of the above

Q406.

Choose a correct statement about format specifiers.

%f prints float constants with 6 digits of precision

%lf prints double constants

%Lf prints long double constants

All of the above

Discuss

Answer: (d).All of the above

Q407.

What does C format specifier %W.D represent?

W represents total number of columns including precision digits.

D represents number of precision digits out of W columns.

Plus(+) before W.D is for Right Alignment. Minus(-) before W.D is for Left Alignment

All of the above

Discuss

Answer: (d).All of the above

Q408.

Choose a C Formatted Input Output function below.

printf(), scanf()

sprintf(), sscanf()

fprintf(), fscanf()

All of the above

Discuss

Answer: (d).All of the above

Q409.

Choose aC unformatted input output function below.

gets(), puts()

getchar(), putchar()

Both a and b

None of the above

Discuss

Answer: (c).Both a and b

Q410.

What is the output of C program?

int main()
{
    int a=123;
    printf("*%06d*",a);
    return 0;
}

*123*

*6123*

*000123*

*006123*

Discuss

Answer: (c).*000123*

Page 41 of 42

Welcome to the Input and Output in C MCQs Page

Input and Output in C MCQs | Page 41 of 42

Explore more Topics under C Programming

C Programming Fundamentals

Data Types,Operators and Expressions in C

Control Flow Statements in C

Functions

Pointers and Arrays in C

Structures and Unions

Library Functions

Strings

File Handling in C

Macro and Preprocessor

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