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ECAT Computer Loop Constructs Test Online

Mustansar KhanLast Updated: May 1, 2025

ECAT Computer Science Loop Constructs Test

ECAT Computer Science Chapter 22 Loop Constructs Online Test

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

ECAT Loop Constructs Test Online MCQs

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

for

while

switch

do-while

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

Starts loop again

Ends the loop

Exits from program

Skips the rest of the loop for current iteration

3. What is an infinite loop?

A loop that executes once

A loop that never terminates

A loop that runs conditionally

A loop that ends at zero

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

switch

do-while

for

while

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

exit

return

break

continue

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

continue

goto

break

exit

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

C90

C89

C99

K&R C

8. Which condition will cause an infinite loop?

i = i + 1

i != 10

true

i > 10

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

for

All of the above

while

do-while

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

for (init; condition; increment)

for (increment; condition; init)

for (condition; init; increment)

for (init; increment; condition)

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

for

do-while

while

goto

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

skip

continue

exit

break

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

None

Missing semicolon

Infinite loop

No increment

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

None

for

do-while

while

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

stop

continue

exit

break

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

Exits the loop

Skips the next iteration

Ends the program

Restarts the loop

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

while(i > 0)

while(1)

Both B and C

while(true)

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

All of the above

Increment

Initialization

Condition

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

Body

Initialization

Condition

Update

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

do-while

switch

for

while

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

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

quit

stop

exit()

abort

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

Iteration

Condition

Initialization

Execution

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

do-while

while

for

switch

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

File scope

Global

Main function

Within the loop block only

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

for

while

repeat

do-while

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

while executes at least once

do-while checks condition first

They are identical

do-while executes at least once

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

hold()

pause()

sleep()

break()

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

All loops must have an exit condition

Only while loops can use break

Only for loops allow continue

Loops cannot be nested

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

while

goto

do-while

for

31. 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

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

do-while

while

for

goto

33. 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--)

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

jump

None

goto

continue

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

Initialization

Increment

Condition

All are optional

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Mustansar KhanLast Updated: May 1, 2025

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ECAT Computer Loop Constructs Test Online

ECAT Computer Science Loop Constructs Test

ECAT Computer Science Chapter 22 Loop Constructs Online Test

ECAT Loop Constructs Test Online MCQs

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ECAT Computer Science Loop Constructs Test

ECAT Computer Science Chapter 22 Loop Constructs Online Test

ECAT Loop Constructs Test Online MCQs

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