Python Loop MCQ : Set 4

1). What is the output of the following code?

for i in range(5):
    if i % 2 == 0:
        continue
    print(i)

a) 1 3
b) 0 2 4
c) 1 2 3 4
d) 0 1 2 3 4

Correct answer is: a) 1 3
Explanation: The if condition checks if i is divisible by 2 (i.e., odd). If it is odd, the continue statement is executed, skipping the remaining code for that iteration.

2). What is the output of the following code?

i = 1
while i <= 5:
    print(i)
    i += 1
else:
    print(“Loop completed”)

a) 1 2 3 4 5
Loop completed
b) 1 2 3 4 5 6
Loop completed
c) 2 3 4 5 6
Loop completed
d) 1 2 3 4 5 6 7
Loop completed

Correct answer is: a) 1 2 3 4 5
Loop completed
Explanation: The while loop prints the value of i and increments it until i becomes greater than 5. After completing all iterations, the else block is executed and prints “Loop completed”.

3). What is the output of the following code?

for i in range(1, 6):
    if i == 3:
        break
    print(i)

a) 1 2
b) 1 2 3
c) 1 2 3 4 5
d) 2 3 4 5

Correct answer is: a) 1 2
Explanation: The for loop iterates from 1 to 5. When i becomes 3, the break statement is executed, terminating the loop prematurely.

4). What is the output of the following code?

i = 0
while i < 3:
    print(i)
    i += 1
    if i == 2:
        break

a) 0 1
b) 0 1 2
c) 0 1 2 3
d) 0

Correct answer is: a) 0 1
Explanation: When i is equal to 2, the break statement is executed, terminating the loop prematurely.

5). What is the output of the following code?

i = 0
while i < 5:
    i += 1
    if i == 3:
        continue
    print(i)

a) 1 2 4 5
b) 1 2 3 4 5
c) 1 3 4 5
d) 2 3 4 5

Correct answer is: c) 1 3 4 5
Explanation: When i is equal to 3, the continue statement is executed, skipping the remaining code for that iteration.

6). What is the output of the following code?

numbers = [1, 2, 3, 4, 5]
for number in numbers:
    if number % 2 == 0:
        continue
    print(number)

a) 1 2 3 4 5
b) 1 3 5
c) 2 4
d) 1

Correct answer is: b) 1 3 5
Explanation: The code iterates over the list `numbers`. When a number is even, the `continue` statement is executed, skipping the remaining code for that iteration.

7). Which loop in Python allows the execution of a block of code for a fixed number of times?
a) while loop
b) for loop
c) do-while loop
d) until loop

Correct answer is: b) for loop
Explanation: The `for` loop in Python allows the execution of a block of code for a fixed number of times, iterating over a sequence or collection.

8). What is the output of the following code?

for i in range(5, 0, -1):
    print(i)

a) 5 4 3 2 1
b) 1 2 3 4 5
c) 0 1 2 3 4
d) 4 3 2 1 0

Correct answer is: a) 5 4 3 2 1
Explanation: The `range()` function starts from 5 and decrements by 1 until it reaches 1 (excluding 0). The numbers are then printed in reverse order.

9). What is the output of the following code?

i = 0
while i < 5:
    if i == 3:
        break
    print(i)
    i += 1

a) 0 1 2 3 4
b) 0 1 2
c) 0 1 2 3
d) 0

Correct answer is: b) 0 1 2
Explanation: The `break` statement is executed when `i` becomes 3, terminating the loop prematurely.

10). What is the output of the following code?

numbers = [1, 2, 3, 4, 5]
for index in range(len(numbers)):
    if numbers[index] % 2 == 0:
        break
    print(numbers[index])

a) 1 2 3 4 5
b) 1 3 5
c) 2 4
d) 1

Correct answer is: d) 1
Explanation: The code iterates over the indices of the `numbers` list. When an even number is encountered, the `break` statement is executed, terminating the loop.