Control Structures MCQs

Question 1

Which control structure is used to repeatedly execute a block of code in C?

Accepted Answer

while loop

Answer

for loop

Answer

if statement

Answer

switch case

Question 2

In C, what is the purpose of the 'break' statement within a loop?

Accepted Answer

Terminate the loop and exit it

Answer

Continue to the next iteration

Answer

Exit the program

Answer

Skip the current iteration

Question 3

What is the purpose of the 'else' statement in C's 'if-else' control structure?

Accepted Answer

Execute the 'else' block

Answer

Execute the 'if' block

Answer

Execute both 'if' and 'else' blocks

Answer

Skip the 'if' block

Question 4

Which control structure is used to make a decision between two or more alternatives in C?

Accepted Answer

if statement

Answer

switch case

Answer

for loop

Answer

while loop

Question 5

What is the result of the expression 5 > 3 && 4 < 6 in C?

Accepted Answer

TRUE

Answer

FALSE

Answer

1

Answer

0

Question 6

In C, what happens if the 'default' case is missing in a 'switch' statement?

Accepted Answer

It has no effect

Answer

It causes a compilation error

Answer

It executes the 'default' case by default

Answer

It generates a runtime error

Question 7

What is the purpose of the 'continue' statement in C?

Accepted Answer

Skip the current iteration

Answer

Skip the loop

Answer

Exit the program

Answer

Exit the loop

Question 8

How many times will a 'do-while' loop execute its body if the condition is initially false in C?

Accepted Answer

1 time

Answer

0 times

Answer

Infinite times

Answer

It depends on the loop body

Question 9

What is the result of the expression !(5 == 5) in C?

Accepted Answer

FALSE

Answer

TRUE

Answer

1

Answer

0