Chapter Exam

Chapter 6: Control Structures — Online MCQ Test

Q: Which statement is used to make a decision in Python?

Answer: A. if — The if statement is used for conditional decision-making in Python.

Q: Which loop is best suited for repeating a block of code a known number of times?

Answer: B. for — A for loop is generally used when the number of iterations is known in advance.

Q: What will be the output of the following code? x = 5 if x > 3: print('Yes') else: print('No')

Answer: B. Yes — Since x is greater than 3, the if block executes and prints Yes.

Q: What is the output of the following code? for i in range(5): if i == 3: break print(i, end=' ')

Answer: A. 0 1 2 — The loop stops when i becomes 3, so only 0, 1, and 2 are printed.

COMPUTER SCIENCE · CLASS 12th · Tamil Nadu State Board

Practice Chapter 6: Control Structures with a free chapter-wise online MCQ test for Tamil Nadu State Board CLASS 12th COMPUTER SCIENCE. This chapter covers: This chapter examines program flow control mechanisms in Python. It covers sequential conditional branching statements like if else and iterative loop structures including for and.... AI-generated questions from basic to board-exam level, with instant results and explanations.

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Chapter 6: Control Structures — Important Questions & Answers (FAQ)

Frequently asked questions from Tamil Nadu State Board CLASS 12th COMPUTER SCIENCE — Chapter 6: Control Structures, with answers and explanations. These are sample questions; the exam has its own separate question set.

Which statement is used to make a decision in Python?

A. if ✓
B. for
C. while
D. break

Answer: A. if
The if statement is used for conditional decision-making in Python.

Which loop is best suited for repeating a block of code a known number of times?

A. if
B. for ✓
C. break
D. pass

Answer: B. for
A for loop is generally used when the number of iterations is known in advance.

What will be the output of the following code? x = 5 if x > 3: print('Yes') else: print('No')

A. No
B. Yes ✓
C. 5
D. Error

Answer: B. Yes
Since x is greater than 3, the if block executes and prints Yes.

What is the output of the following code? for i in range(5): if i == 3: break print(i, end=' ')

A. 0 1 2 ✓
B. 0 1 2 3
C. 1 2 3
D. 0 1 2 3 4

Answer: A. 0 1 2
The loop stops when i becomes 3, so only 0, 1, and 2 are printed.

Which of the following best explains the difference between break and continue?

A. break exits the loop, continue skips only the current iteration ✓
B. break skips only the current iteration, continue exits the loop
C. Both always terminate the program
D. Both are used only with if statements

Answer: A. break exits the loop, continue skips only the current iteration
Break stops the loop completely, while continue moves to the next iteration without ending the loop.