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ECAT Computer Decision Constructs Test Online

Mustansar KhanLast Updated: May 1, 2025

ECAT Computer Science Decision Constructs Test

ECAT Computer Science Chapter 21 Decision Constructs Online Test

Total Questions:	37
Time Allowed:	20 Minutes
Total Marks:	37
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 Decision Constructs Test Online MCQs

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1. Which of these expressions is evaluated first?

a == b && c

a && b || c

!a && b

a || b && c

2. Can a switch statement handle strings?

Only with char

Only in C++

Yes

3. Which of the following is a compound condition?

x == y && y == z

x++;

x == y

4. Can the default label appear anywhere in a switch block?

Yes, anywhere

Only after all cases

No, only at the end

No, only at the beginning

5. Which of the following is the correct syntax of an if statement in C?

if (condition) { }

if condition then { }

if: condition { }

if = condition { }

6. Which construct is used for multi-way branching?

break

switch

if-else

7. Which is true for a valid if-else block?

Multiple ifs and one else

Multiple else without if

One if and multiple else

Only one if and one else

8. What happens when both if and else are without braces?

None

Only the next statement belongs to if/else

Error

Only one executes

9. What is the purpose of default in a switch?

Acts like a comment

Run always

Run when no case matches

Skip the switch

10. Which of the following must be a constant expression in a switch case?

case "A":

case a:

case x + y:

case 1 + 1:

11. What is the output of this code?

(a) printf("True");

se printf("False");

False

True

Error

12. What will be the output of:

t a = 5, b = 10;

intf("%d", a > b ? a : b);

Error

13. What is the output of:

Error

intf("Equal");

(x == 10)

No output

Equal

14. What is the correct syntax for a switch statement?

switch[x] { case 1: ... }

switch = x { case 1: ... }

switch(x) { case 1: ... }

switch x { case 1: ... }

15. Which of the following keywords is not part of decision-making in C?

repeat

else

case

16. Which of the following is used for decision-making in C?

while

for

17. Which of the following is used to select one option from multiple choices?

goto

switch

do-while

while

18. What is the use of the default case in a switch?

Executes if no match is found

To exit the program

To test 0

Skips the loop

19. How many else if clauses can be used after an if?

Unlimited

Up to two

Only one

Cannot use with if

20. Can you nest switch statements?

Only two levels

Only with breaks

Yes

21. Which operator is used in ternary condition?

22. Which of the following cannot be used in a switch case label?

'A'

variable

100

23. Which operator is used for logical OR in C?

24. Which operator gives highest precedence in decision making?

25. Which data type is allowed in switch expression?

int

char

All of the above

enum

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26. Which operator is used for logical AND in C?

27. What happens if a break is omitted in a switch case?

Program terminates

Syntax error

Only default executes

Fall-through occurs

28. What will this code print?

(!x) printf("Zero");

Nothing

Zero

29. Which of the following is a ternary operator?

while

? :

switch

if-else

30. Which of the following is a relational operator?

31. Which keyword can transfer control to a label in C?

continue

case

break

goto

32. Which is the default return type of a condition?

float

string

int (0 or 1)

char

33. Which decision construct is used for true/false evaluation?

switch

while

34. What is the purpose of the break statement in a switch case?

Return to main

Continue the next iteration

Repeat the next case

Exit the switch block

35. Which of the following can be nested?

switch

All of the above

if-else

36. Which of the following is used to evaluate multiple conditions?

continue

if-else ladder

for

switch

37. What is the purpose of the else block?

Terminates the loop

Checks a new condition

Executes when if is false

Executes when if is true

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Mustansar KhanLast Updated: May 1, 2025

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ECAT Computer Decision Constructs Test Online

ECAT Computer Science Decision Constructs Test

ECAT Computer Science Chapter 21 Decision Constructs Online Test

ECAT Decision Constructs Test Online MCQs

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Mustansar Khan

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ECAT Computer Science Decision Constructs Test

ECAT Computer Science Chapter 21 Decision Constructs Online Test

ECAT Decision Constructs Test Online MCQs

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