M2.3: SAQ

The condition in an if statement may be a(n) _________ .

•  Boolean variable

• boolean expression
•  Compound Boolean expression

•  All of the above

The statements inside an if must be indented using tabs.

• True

• False

An if statement must always have an accompanying else.

•  

  True

• False

Another name for an if statement is a selection statement.

• True

• False

Which Python statement is used to simplify tail nesting code?

• else

• elif

•  

  if-else

•  

  tail

What is displayed by the following code?

a = 5

b = 6

c = 7

d = 8

if a <= 5:

  if b > 7:

    print(c)

  else:

    print(d)

else:

  if b < 7:

    print(2 * c)

  else:

    print(2 * d)

• 7

• 8

• 14

• 16

What is the output of the following code?

a = 3

b = 5

c = 7

d = 9

if a >= 5:

  if b > 7:

    print(c)

  else:

    print(d)

else:

  if b < 7:

    print(2 * c)

  else:

    print(2 * d)

• 7

• 8

• 14

• 16

Which of the following is not a form of a selection statement in Python?

• if

•  

  if-else

•  

  if-elif-else

• switch

In Python, the elif statement is required to implement tail nesting.

•  

  True

• False

Under what circumstances are the statements on line 10 executed?

1. if <condition>:
2.    if <condition>:
3.      <statements>
4.    else:
5.      <statements>
6. else:
7.    if <condition>:
8.      <statements>
9.    else:
10.   <statements>

•  

  The condition in line 1 is False, and the condition in line 7 is False.

•  

  The condition in line 1 is False, and the condition in line 7 is True.

•  

  The condition in line 1 is True, and the condition in line 7 is False.

•  

  The condition in line 1 is True, and the condition in line 7 is True.