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

Starts loop again

Exits from program

Ends the loop

Skips the rest of the loop for current iteration

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

abort

stop

exit()

quit

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

Initialization

Body

Condition

Update

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

do-while

switch

while

for

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

Initialization

All are optional

Condition

Increment

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

continue

skip

exit

break

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

Condition

Increment

All of the above

Initialization

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

Ends the program

Restarts the loop

Exits the loop

Skips the next iteration

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

do-while

while

for

goto

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

K&R C

C90

C99

C89

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

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

while

switch

for

do-while

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

pause()

break()

sleep()

hold()

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

Global

Main function

File scope

Within the loop block only

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

None

do-while

while

for

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

for

repeat

while

do-while

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

continue

goto

break

exit

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

Only for loops allow continue

Only while loops can use break

Loops cannot be nested

All loops must have an exit condition

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

while(i > 0)

while(true)

while(1)

Both B and C

20. 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

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

jump

continue

goto

None

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

for (condition; init; increment)

for (increment; condition; init)

for (init; increment; condition)

for (init; condition; increment)

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

for

do-while

goto

while

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

Initialization

Iteration

Condition

Execution

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

All of the above

while

for

do-while

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

break

exit

continue

stop

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

do-while

switch

while

for

28. Which condition will cause an infinite loop?

i != 10

i > 10

true

i = i + 1

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

goto

for

while

do-while

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

return

break

exit

continue

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

do-while

for

switch

while

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

Missing semicolon

Infinite loop

None

No increment

33. 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

34. What is an infinite loop?

A loop that runs conditionally

A loop that ends at zero

A loop that executes once

A loop that never terminates

35. 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++)

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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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