formatted and unformatted input/output in c mcq

What is an Escape Sequence in C language.?

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

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

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

• D) All the above

Choose a correct statement about C Escape Sequences.

• A) \n produces new line.

• B) \t produces one tab space (white spaces)

• C) \b produces one Backspace

• D) All the above

Choose a C unformatted input output function below.

• A) gets(), puts()

• B) getchar(), putchar()

• C) A & B

• D) None of the above

What is the output of C program.?

int main()

{

int a=123;

printf("*%06d*",a);

return 0;

}

• A) *123*

• B) *6123*

• C) *000123*

• D) *006123*

What is the output of C program.?

int main()

{

int a=123456;

printf("*%03d*",a);

return 0;

}

• A) *123*

• B) *6123*

• C) *123456*

• D) *012345*

What is the output of C program.?

int main()

{

float a=654.123456f;

printf("%3.3f,%3.2f",a,a);

return 0;

}

• A) 654,654

• B) 654.123456,654.123456

• C) 654.123,654.12

• D) 654.000,654.00

What is the output of C program.?

int main()

{

char ch='A';

ch=getchar();

putchar(ch);

return 0;

}//input= S

• A) A

• B) B

• C) S

• D) Compiler error

Choose a correct C statement.?

• A) SCANF can accept all types of data from keyboard including numbers and strings

• B) GETS can accept only one String of any length and any number of words. GETCHAR can accept only one character constant from keyboard.

• C) SCANF can accept only single word Strings

• D) All the above

What is the output of c program with %* operator.?

int main()

{

char kh;

scanf("%*c %c",&kh);

putchar(kh);

return 0;

}//input=G H

• A) G

• B) H

• C) A

• D) Compiler error

Which among the following is the odd one out?

• a) printf

• b) fprintf

• c) putchar

• d) scanf