Python Flow Control ( If Else and Loops) Quiz

1. In the expression condition1 and condition2, when is condition2 evaluated?

2. Which keyword is used to skip the rest of the current iteration of a loop and move to the next iteration?

3. Which of these is NOT a valid control flow statement in Python?

4. What is the purpose of the pass statement in Python?

5. What will be the output of the following Python code?

sum_val = 0 
for i in range(1, 4): 
  for j in range(1, 3): 
    sum_val += 1 
print(sum_val)

6. What will be the output of the following Python code?

matrix = [[1, 2], [3, 4]]
for row in matrix:
    for item in row:
        print(item, end=" ")
print()

7. What will be the output of the following Python code?

count = 0
while count < 5:
    print(count)
    if count == 2:
        break
    count += 1
else:
    print("Loop completed")

8. Given the nested if-else structure below, what will be the value of x

x = 0
a = 0
b = -5
if a > 0:
    if b < 0: 
        x = x + 5 
    elif a > 5:
        x = x + 4
    else:
        x = x + 3
else:
    x = x + 2
print(x)

9. What kind of error is most likely to occur if you incorrectly indent a line of code within an if block?

10. Consider the following code: my_list = [10, 20, 30]

Which of the following for loop correctly iterates through my_list and prints each element?

11. What is the output of the following loop

for i in 'Jhon':
   if i == 'o':
      pass
   print(i, end=", ")

12. What does the zip() function do when used with loops?

13. Which of the following conditions would most likely result in an infinite while loop?

14. When is the else block of a while loop executed?

15. When you iterate directly over a dictionary using a for loop (e.g., for key in my_dict:), what do you get in each iteration?

16. What is the output of the following range() function

for num in range(2,-5,-1):
    print(num, end=", ")

17. What will be the output of the following Python code?

for i in range(3):
  print(i * 2, end=" ")

18. What is the output of the following nested loop?

numbers = [10, 20]
items = ["Chair", "Table"]

for x in numbers:
  for y in items:
    print(x, y)

19. if -3 will evaluate to True

20. Which of the following correctly describes a while loop?

21. What will be the output of the following Python code?

nums = [10, 20, 30]
for num in nums:
    if num > 25:
        print("Large number found")
        break
else:
    print("No large numbers")

22. What sequence of numbers does range(1, 5) generate?

23. Which of the following statements is used to exit a loop prematurely in Python?

24. What will be the output of the following Python code?

data = ["apple", "banana", "cherry"]
for index, item in enumerate(data):
    print(f"{index}: {item}")

25. What is the value of x

x = 0
while x < 10:
  x+=2
print(x)