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 18 of 42

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File Handling in C

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Macro and Preprocessor

Q171.

What is the output of this C code?

#include <stdio.h>
    #include <math.h>
    void main()
    {
        int k = sqrt(-4);
        printf("%d\n", k);
    }

-2

Compile time error

NaN

Discuss

Answer: (d).NaN

Q172.

Which among the following mathematical function do not have a “double” return-type?

srand(x);

ceil(x);

floor(x);

both ceil(x); and floor(x);

Discuss

Answer: (a).srand(x);

Q173.

The function srand(unsigned)

Sets the seed for rand

Doesn’t exist

Is an error

None of the mentioned

Discuss

Answer: (a).Sets the seed for rand

Q174.

Which is the best way to generate numbers between 0 to 99?

rand()-100

rand()%100

rand(100)

srand(100)

Discuss

Answer: (b).rand()%100

Q175.

The correct way to generate numbers between minimum and maximum(inclusive) is _________________

minimum + (rand() % (maximum – minimum));

minimum + (rand() % (maximum – minimum + 1));

minimum * (rand() % (maximum – minimum));

minimum – (rand() % (maximum+minimum));

Discuss

Answer: (b).minimum + (rand() % (maximum – minimum + 1));

Q176.

rand() and srand() functions are used

To find sqrt

For and operations

For or operations

To generate random numbers

Discuss

Answer: (d).To generate random numbers

Q177.

What is the return type of rand() function?

short

int

long

double

Discuss

Answer: (b).int

Q178.

Which of the following can be used for random number generation?

random()

rnd()

rndm()

none of the mentioned

Discuss

Answer: (a).random()

Q179.

Which of the following snippet will effectively generate random numbers?

rand();

rand(10);

rand(time(NULL));

all of the mentioned

Discuss

Answer: (a).rand();

Q180.

Which among the following is correct function call for rand and random?

rand() and random();

rand() and random(1);

rand(1) and random(1);

rand(1) and random();

Discuss

Answer: (a).rand() and random();

Page 18 of 42

Welcome to the Input and Output in C MCQs Page

Input and Output in C MCQs | Page 18 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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