Control Structures Practice Test — Class 12 Computer Science

12th Standard Computer Science — Control Structures: Online Practice Test

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How many important control structures are there in Python?

A.3 B.4 C.5 D.6

elif can be considered to be abbreviation of

A.nested if B.if..else C.else if D.if..elif

What plays a vital role in Python programming?

A.Statements B.Control C.Structure D.Indentation

Which statement is generally used as a placeholder?

A.continue B.break C.pass D.goto

The condition in the if statement should be in the form of

A.Arithmetic or Relational expression B.Arithmetic or Logical expression C.Relational or Logical expression D.Arithmetic

Which of the following is known as definite loop?

A.do..while B.while C.for D.if..elif

What is the output of the following snippet? i=1 while True: if i%3 ==0: break print(i,end=' ') i +=1

A.1 2 B.1 2 3 C.1 2 3 4 D.1 2 4

What is the output of the following snippet? T=1 while T: print(True) break

A.False B.True C.0 D.1

Which amongst this is not a jump statement ?

A.for B.pass C.continue D.break

Q10

Which punctuation should be used in the blank? if _ statements-block 1 else: statements-block 2

A.; B.: C.:: D.!

Q11

Which of the following statements is executed sequentially, one after another, in the order they are written?

A.Alternative statement B.Branching statement C.Sequential statement D.Iterative statement

Q12

What will be the value of x after the execution of the following statement: x = 10 if 5 > 8 else 20?

A.10 B.20 C.True D.False

Q13

In an if..elif..else statement, where must the optional else clause be placed if it is used?

A.At the very beginning before if B.Immediately after the if clause C.At the end of the entire statement structure D.It can be placed at any position inside the structure

Q14

Which loop in Python is categorised as an entry check loop, meaning its condition is tested before executing the loop body?

A.while loop B.do..while loop C.repeat..until loop D.exit loop

Q15

What is the default starting value of the range generated by the range(stop) function in Python if only one parameter is specified?

A.1 B.-1 C.0 D.None of the above

Q16

What sequence of values will be generated by the expression range(2, 10, 3)?

A.2, 5, 8 B.2, 5, 8, 10 C.2, 3, 4, 5, 6, 7, 8, 9, 10 D.5, 8

Q17

What is the output of the following Python loop? for i in range(1, 5): if i == 3: break print(i, end=' ') else: print('End')

A.1 2 End B.1 2 3 C.1 2 D.1 2 4 End

Q18

Which parameter of Python's print() function can be used to define custom separation characters between multiple items being printed?

A.end B.sep C.split D.limit

Q19

What is the primary purpose of the pass statement in Python?

A.To terminate the execution of the current loop immediately B.To skip the current iteration and jump to the next one C.To act as a null statement or placeholder for future code implementation D.To check if a specific condition is successfully met

Q20

What will be printed on the screen when the following code block is executed? x = 'Python' for char in x: if char == 't' or char == 'o': continue print(char, end='')

A.Pyhn B.Python C.Py D.thon

Q21

Which of the following is correct regarding nested loops in Python?

A.Only for loops can be nested inside other for loops. B.Only while loops can be nested inside other while loops. C.Any loop (for or while) can be nested inside any other loop. D.Python does not support nesting of loops.

Q22

What happens when the condition of a while loop is initially evaluated as False?

A.The loop executes exactly once and then terminates. B.The loop runs continuously as an infinite loop. C.The interpreter throws a runtime compilation error. D.The loop body is not executed even once, and control jumps to the next statement.

Q23

Which statement is used to unconditionally transfer the control from one part of the program to another?

A.Sequencing statement B.Jump statement C.Alternative statement D.Structural statement

Q24

What will be the output of the following Python code snippet? a = 15 if a % 3 == 0: if a % 5 == 0: print('Divisible by both') else: print('Divisible by 3 only') else: print('Not divisible by 3')

A.Divisible by 3 only B.Divisible by both C.Not divisible by 3 D.No output is printed

Q25

Which keyword can be used to test if a character exists in a tuple of specified vowel characters inside an if statement?

A.in B.check C.match D.with

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About this Control Structures test

This free online practice test covers Control Structures from the 12th Standard Computer Science (Samacheer Kalvi) syllabus. Choose the number of questions and an optional time limit, then answer and submit — everything is checked in your browser, with the correct answers and a worked explanation shown at the end. For the full solutions to every question in this set, see the solved MCQs page.

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