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Computer Loop Constructs Test Online

Mustansar KhanLast Updated: October 15, 2025

Start your preparation for Computer Loop Constructs Test Online. This online test contains important MCQs from past papers. Attempting this test will help you prepare for Annual Exams and Entry Tests. Read the questions carefully and select the correct option below to see your result.

Important Computer Loop Constructs Question and Answer

Total Questions:	35
Time Allowed:	20 Minutes
Total Marks:	35
How to Attempt Test:	Please choose the right Option in MCQ-type question.
Test Helpful For:	ECAT Entry Test Computer Online Test Interview Questions about Computer All Universities Entrance Test Recruitments Tests

Loop Constructs Practice Test Online With Explanation

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1. Which function can be used to delay loop execution?

hold()

sleep()

pause()

break()

2. Which keyword is used to terminate the program from inside a loop?

stop

quit

exit()

abort

3. Which of the following is true about the while loop?

Condition is checked after execution

It runs infinitely

Condition is checked before each iteration

It always executes once

4. Which loop structure is preferred when input is taken repeatedly until a condition is met?

for

while

do-while

switch

5. Which loop allows declaration like this: for (int i = 0; ...)?

C89

C99

C90

K&R C

6. In a for loop, which part is optional?

All of the above

Condition

Increment

Initialization

7. Which of the following is not a loop construct in C?

for

repeat

while

do-while

8. Which condition will cause an infinite loop?

i = i + 1

i != 10

true

i > 10

9. Which of the following statements can be used to exit a loop?

continue

break

return

exit

10. Which loop type is preferred when the number of iterations is known?

goto

while

do-while

for

11. Which control statement can be used inside any loop to force termination?

break

continue

stop

exit

12. Which part of a for loop is executed only once?

Initialization

Update

Body

Condition

13. Which of the following is the correct way to create a reverse loop?

for (i = n; i >= 0; i--)

for (i = 0; i < n; i--)

for (i = n; i > 0; i++)

for (i = n; i <= 0; i--)

14. Which of the following is the syntax of a for loop?

for (init; condition; increment)

for (condition; init; increment)

for (increment; condition; init)

for (init; increment; condition)

15. Which loop is more suitable when checking the condition at the beginning is necessary?

while

switch

do-while

for

16. What is the initial value of a loop variable called?

Iteration

Initialization

Execution

Condition

17. Which of the following loops allows execution after the condition check?

None

do-while

while

for

18. Which loop is guaranteed to execute at least once?

while

for

All of the above

do-while

19. What is the scope of a loop variable declared inside a for loop?

Main function

Global

File scope

Within the loop block only

20. Which of the following is not necessary in a for loop?

All are optional

Initialization

Condition

Increment

21. Which of the following loops uses a post-test condition?

goto

do-while

for

while

22. What is the default step size in a for loop?

23. Which loop is best suited for menu-driven programs?

goto

do-while

for

while

24. Which of these can result in a compile-time error in a loop?

No increment

Infinite loop

None

Missing semicolon

25. Which of the following is a valid loop control structure?

jump

continue

goto

None

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26. What is the main difference between while and do-while?

do-while checks condition first

They are identical

while executes at least once

do-while executes at least once

27. What is an infinite loop?

A loop that never terminates

A loop that ends at zero

A loop that executes once

A loop that runs conditionally

28. Which loop is best when exit depends on user input?

do-while

for

while

switch

29. Which of the following statements about loops is true?

Only while loops can use break

Only for loops allow continue

All loops must have an exit condition

Loops cannot be nested

30. Which of the following is an infinite while loop?

while(true)

while(i > 0)

while(1)

Both B and C

31. What is the purpose of the continue statement in a for loop?

Exits from program

Skips the rest of the loop for current iteration

Starts loop again

Ends the loop

32. Which keyword skips the current iteration and proceeds to the next?

continue

break

skip

exit

33. Which loop is most commonly used in iterating arrays?

for

switch

do-while

while

34. Which keyword is used to skip the rest of the loop body and continue with the next iteration?

goto

break

exit

continue

35. What does the break statement do in a loop?

Ends the program

Restarts the loop

Skips the next iteration

Exits the loop

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Mustansar KhanLast Updated: October 15, 2025

Important Computer Loop Constructs Question and Answer

Loop Constructs Practice Test Online With Explanation

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Study Plan for Computer Loop Constructs Test Online

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