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

continue

stop

break

exit

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

while(i > 0)

while(true)

while(1)

Both B and C

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

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

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

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

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

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

Condition

Initialization

Update

Body

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

Condition

Initialization

All are optional

Increment

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

Increment

All of the above

Initialization

Condition

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

K&R C

C99

C90

C89

8. What is an infinite loop?

A loop that never terminates

A loop that runs conditionally

A loop that ends at zero

A loop that executes once

9. Which condition will cause an infinite loop?

i > 10

true

i = i + 1

i != 10

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

Ends the loop

Starts loop again

Exits from program

Skips the rest of the loop for current iteration

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

File scope

Main function

Global

Within the loop block only

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

repeat

while

for

do-while

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

abort

exit()

stop

quit

14. 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)

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

Only for loops allow continue

All loops must have an exit condition

Loops cannot be nested

Only while loops can use break

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

while

All of the above

for

do-while

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

while executes at least once

do-while executes at least once

do-while checks condition first

They are identical

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

goto

continue

None

jump

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

while

do-while

switch

for

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

Missing semicolon

Infinite loop

No increment

None

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

Iteration

Execution

Condition

Initialization

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

switch

while

for

do-while

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

switch

while

for

do-while

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

switch

while

for

do-while

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

Exits the loop

Ends the program

Restarts the loop

Skips the next iteration

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

pause()

break()

hold()

sleep()

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

goto

do-while

for

while

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

for

do-while

goto

while

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

while

goto

for

do-while

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

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

None

while

for

do-while

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

Condition is checked after execution

It always executes once

Condition is checked before each iteration

It runs infinitely

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

goto

exit

break

continue

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

skip

continue

break

exit

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

break

exit

return

continue

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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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