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

break

continue

goto

exit

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

K&R C

C99

C90

C89

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

Body

Update

Condition

Initialization

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

Ends the loop

Skips the rest of the loop for current iteration

Exits from program

Starts loop again

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

exit

break

continue

skip

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

do-while checks condition first

while executes at least once

do-while executes at least once

They are identical

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

for

switch

do-while

while

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

while

do-while

for

goto

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

Global

File scope

Within the loop block only

Main function

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

Missing semicolon

No increment

None

Infinite loop

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

exit()

stop

abort

quit

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

for

None

do-while

while

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

continue

exit

stop

break

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

for

switch

do-while

while

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

break()

pause()

sleep()

hold()

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

while(1)

while(i > 0)

Both B and C

while(true)

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

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

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

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

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

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

for

do-while

while

All of the above

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

do-while

goto

for

while

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

All loops must have an exit condition

Only while loops can use break

Loops cannot be nested

Only for loops allow continue

21. Which condition will cause an infinite loop?

i > 10

i != 10

true

i = i + 1

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

while

for

repeat

do-while

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

for

while

switch

do-while

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

All of the above

Initialization

Condition

Increment

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

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

Iteration

Condition

Initialization

Execution

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

goto

jump

continue

None

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

Increment

Condition

Initialization

All are optional

29. What is an infinite loop?

A loop that never terminates

A loop that runs conditionally

A loop that executes once

A loop that ends at zero

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

break

exit

return

continue

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

for (condition; init; increment)

for (init; condition; increment)

for (init; increment; condition)

for (increment; condition; init)

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

switch

do-while

while

for

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

while

for

goto

do-while

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

Restarts the loop

Ends the program

Skips the next iteration

Exits the loop

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

It runs infinitely

Condition is checked after execution

Condition is checked before each iteration

It always executes once

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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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