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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 the correct way to create a reverse loop?

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

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

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

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

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

quit

exit()

abort

stop

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

Infinite loop

None

Missing semicolon

No increment

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

repeat

for

do-while

while

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

Condition

Initialization

Body

Update

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

Condition

Iteration

Execution

Initialization

7. Which condition will cause an infinite loop?

i != 10

i > 10

i = i + 1

true

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

do-while checks condition first

do-while executes at least once

They are identical

while executes at least once

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

for

do-while

while

All of the above

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

Only while loops can use break

All loops must have an exit condition

Loops cannot be nested

Only for loops allow continue

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

Skips the rest of the loop for current iteration

Starts loop again

Ends the loop

Exits from program

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

goto

do-while

for

while

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

Main function

Within the loop block only

File scope

Global

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

stop

exit

continue

break

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

Condition

Increment

All are optional

Initialization

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

for

while

do-while

goto

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

while

switch

for

do-while

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

while

switch

for

do-while

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

break

goto

continue

exit

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

while

for

do-while

switch

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

Ends the program

Skips the next iteration

Exits the loop

Restarts the loop

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

sleep()

hold()

pause()

break()

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

while(i > 0)

Both B and C

while(1)

while(true)

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

Condition is checked before each iteration

It runs infinitely

It always executes once

Condition is checked after execution

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

exit

return

break

continue

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

All of the above

Increment

Initialization

Condition

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

for

while

do-while

None

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

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

for

do-while

while

switch

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

skip

break

exit

continue

31. What is an infinite loop?

A loop that executes once

A loop that never terminates

A loop that ends at zero

A loop that runs conditionally

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

None

continue

jump

goto

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

K&R C

C99

C90

C89

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

for (init; increment; condition)

for (condition; init; increment)

for (increment; condition; init)

for (init; condition; increment)

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

goto

while

for

do-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

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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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