Free Practice Quiz Question List

02 Variables, Expressions, and Input/Output Online Quiz Questions

Use this free practice quiz with 20 questions to review 02 Variables, Expressions, and Input/Output, test your knowledge, and prepare for your next test or exam.

20 questions

True or false

1 point

Consider this Python code: balance = 100; balance = balance - 25; balance = balance + 10. After all three statements execute, is balance equal to 85?

A
True
B
False

Choose one

1 point

Which item is an integer literal in Python?

A
answer
B
42
C
value
D
number

Written response

1 point

What type of value does Python's input() function return before any conversion?

Fill in the blank

1 point

Complete the statement: In Python, the operator that assigns a value to a variable is .

Choose one

1 point

What value is assigned to result by this statement: result = 2 + 3 * 4?

A
10
B
20
C
14
D
24

True or false

1 point

True or false: In Python, assigning a new value to an uppercase constant name always causes an error.

A
True
B
False

Choose all

1 point

Which operations are demonstrated by this data flow: receive a number as text, convert it to an integer, store the result, and display it? Select all four correct choices.

A
Reading a response with input()
B
Displaying text with print()
C
Converting text with int()
D
Storing a result through assignment
E
Merely writing an expression without using its result

Written response

1 point

What is the name of the arithmetic operation performed by the Python operator //?

Fill in the blank

1 point

Complete the statement: A Python string written with a leading f so that expressions can be evaluated inside braces is called an .

Choose one

1 point

Which expression tests whether the variable score has the value 100?

A
score = 100
B
score == 100
C
score != 100
D
score + 100

Choose all

1 point

Which three statements accurately describe common issues or safeguards when using Python input? Select all correct choices.

A
Two unconverted numeric inputs can be concatenated instead of added.
B
input() automatically returns an integer when the user enters digits.
C
int() can convert suitable numeric text for arithmetic.
D
Every text response can be converted successfully with int().
E
A conversion can fail when the text does not have the expected numeric format.

Choose one

1 point

What value does count have after this code executes? count = 5; count += 2; count *= 3.

A
15
B
17
C
21
D
7

Open ended

1 point

Trace this Python code and state the final values of subtotal, tax, and total, explaining how each value is produced: TAX_RATE = 0.08; price = 12; quantity = 3; subtotal = price * quantity; tax = subtotal * TAX_RATE; total = subtotal + tax.

Choose one

1 point

What value is assigned to remainder by this Python statement: remainder = 17 % 5?

A
3
B
12
C
2
D
5

True or false

1 point

True or false: The Python statement x = x + 1 is valid when x already has the value 4, and afterward x has the value 5.

A
True
B
False

Choose one

1 point

Which statement best describes the conventional use of uppercase names such as TAX_RATE in Python?

A
Python prevents any later assignment to an uppercase name.
B
An uppercase name communicates that the program intends the value not to change.
C
Only string values can be assigned to uppercase names.
D
An uppercase name automatically creates a special constant object.

Choose one

1 point

What value is assigned to result by this statement?

result = 2 + 3 * 4

A
10
B
20
C
14
D
24

Written response

1 point

What is the final value of balance after this code executes?

balance = 100

balance = balance - 25

balance = balance + 10

Choose one

1 point

Suppose score = 100. What does is_perfect = (score == 100) do?

A
It increases score by 100.
B
It tests whether score equals 100 and stores the Boolean result.
C
It changes the type of score to Boolean without testing it.
D
It tests whether score is greater than 100.

Written response

1 point

Which Python function converts numeric text into an integer?