Control Structures - Practice Test

[#1] The type of the controlling expression of a switch statement cannot be of the type ........

(A) int

(B) char

(C) short

(D) float

Correct Answer

(D) float

[#2] What's wrong in the following statement, provided k is a variable of type int? for ( k = 2, k <=12, k ++)

(A) The increment should always be ++k .

(B) The variable must always be the letter i when using a for loop.

(C) There should be a semicolon at the end of the statement.

(D) The variable k can’t be initialized.

Correct Answer

The increment should always be ++k .

Explanation

Solution: In for loop the three statements parts are separated by two semicolons which are missing here.

[#3] Which control structure is used to repeatedly execute a block of code in C?

(A) for loop

(B) if statement

(C) switch case

(D) while loop

Correct Answer

(D) while loop

[#4] In C, what is the purpose of the 'break' statement within a loop?

(A) Continue to the next iteration

(B) Exit the program

(C) Terminate the loop and exit it

(D) Skip the current iteration

Correct Answer

(C) Terminate the loop and exit it

[#5] What is the purpose of the 'else' statement in C's 'if-else' control structure?

(A) Execute the 'if' block

(B) Execute the 'else' block

(C) Execute both 'if' and 'else' blocks

(D) Skip the 'if' block

Correct Answer

(B) Execute the 'else' block

Control Structures - Study Mode

[#1] The type of the controlling expression of a switch statement cannot be of the type ........

Correct Answer

[#2] What's wrong in the following statement, provided k is a variable of type int? for ( k = 2, k <=12, k ++)

Correct Answer

Explanation

[#3] Which control structure is used to repeatedly execute a block of code in C?

Correct Answer

[#4] In C, what is the purpose of the 'break' statement within a loop?

Correct Answer

[#5] What is the purpose of the 'else' statement in C's 'if-else' control structure?

Correct Answer