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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 of the following is an infinite while loop?

while(true)

while(i > 0)

Both B and C

while(1)

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

Condition

Iteration

Initialization

Execution

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

do-while

while

for

repeat

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

Ends the program

Restarts the loop

Skips the next iteration

Exits the loop

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

goto

continue

exit

break

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

It runs infinitely

It always executes once

Condition is checked after execution

Condition is checked before each iteration

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

All are optional

Initialization

Condition

Increment

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

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

break()

pause()

sleep()

hold()

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

for

while

do-while

switch

11. 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

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

break

exit

stop

continue

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

do-while executes at least once

while executes at least once

do-while checks condition first

They are identical

14. Which condition will cause an infinite loop?

i > 10

i != 10

true

i = i + 1

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

for

do-while

while

switch

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

C89

C99

K&R C

C90

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

for

while

switch

do-while

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

goto

for

while

do-while

19. 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--)

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

Increment

Initialization

All of the above

Condition

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

for (init; condition; increment)

for (increment; condition; init)

for (init; increment; condition)

for (condition; init; increment)

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

for

goto

while

do-while

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

continue

return

exit

break

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

Update

Initialization

Condition

Body

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

exit()

abort

quit

stop

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

Only for loops allow continue

Loops cannot be nested

All loops must have an exit condition

Only while loops can use break

27. 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

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

for

do-while

while

goto

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

None

for

while

do-while

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

None

jump

goto

continue

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

No increment

None

Infinite loop

Missing semicolon

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

File scope

Within the loop block only

Main function

Global

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

while

for

switch

do-while

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

break

exit

continue

skip

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

do-while

for

All of the above

while

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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

Uncategorized

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Mustansar Khan

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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

Uncategorized

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Mustansar Khan

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