Free Practice Quiz Question List

2 Variables, Data Types, and Expressions Online Quiz Questions

Use this free practice quiz with 30 questions to review 2 Variables, Data Types, and Expressions, test your knowledge, and prepare for your next test or exam.

30 questions

Choose one

1 point

In Python, what value is assigned to result by this statement?

result = 2 + 3 * 4

A
20
B
14
C
24
D
9

Choose one

1 point

Which value is produced by this Python expression?

(2 + 3) * 4

A
14
B
9
C
20
D
24

Choose one

1 point

After these Python statements execute, what is the value of count?

count = 10

count = count + 1

A
11
B
10
C
1
D
9

Choose one

1 point

What does the expression score == 90 do after score = 90 has already executed?

A
It assigns True to score.
B
It changes score to 89.
C
It produces a syntax error because comparisons cannot use numbers.
D
It evaluates whether score is equal to 90.

Choose one

1 point

What are the data types of "42" and 42, respectively?

A
Both values are integers.
B
The first is a Boolean and the second is a string.
C
The first is a string and the second is an integer.
D
Both values are floating-point numbers.

Choose one

1 point

Which statement correctly reads a whole-number quantity from the user so that the quantity can be used in integer arithmetic?

A
quantity = bool(input("How many? "))
B
quantity = int(input("How many? "))
C
quantity = str(input("How many? "))
D
quantity = float(input("How many? "))

Choose one

1 point

A program uses hours = minutes // 60. If minutes is 210, what value is assigned to hours?

A
3
B
3.5
C
1
D
4

Choose one

1 point

Using the following logic, what output values result when minutes = 137?

hours = minutes // 60

remaining_minutes = minutes % 60

A
1 hour(s) and 77 minute(s)
B
2 hour(s) and 60 minute(s)
C
3 hour(s) and 17 minute(s)
D
2 hour(s) and 17 minute(s)

Choose one

1 point

Which statement best calculates the total cost for an item and quantity while following the material's naming guidance?

A
total_cost = item_price + quantity
B
x = item_price * quantity
C
total_cost = item_price * quantity
D
item_price = total_cost * quantity

Choose one

1 point

What does the name TAX_RATE communicate in a Python program?

A
It is automatically protected from every reassignment by Python.
B
It is a function that calculates tax.
C
It is a string because names with underscores are text.
D
It is a conventionally named constant whose value is intended not to change.

Choose one

1 point

What value is assigned to can_receive_discount?

is_member = True

has_coupon = False

can_receive_discount = is_member or has_coupon

A
True
B
False
C
None
D
The expression causes a type-conversion error.

Choose one

1 point

What happens when a Python program attempts to evaluate "Age: " + age after age = 20?

A
It always converts the integer to a string automatically.
B
It performs numeric addition and returns a number.
C
It repeats the string 20 times.
D
It causes a type error because the operands have incompatible types.

Choose one

1 point

Which description defines a literal in a program?

A
A name associated with a value
B
A value written directly in source code
C
A data type that represents whole numbers
D
A comparison that produces True or False

Choose one

1 point

Which Python identifier is a valid descriptive variable name for the total price of several items?

A
total cost
B
2nd_total
C
total_cost
D
class

Choose one

1 point

In Python, what data type does the literal "2026" represent?

A
An integer
B
A floating-point number
C
A Boolean
D
A string

Choose one

1 point

What value is assigned to is_adult after this code runs?

age = 20
is_adult = age >= 18

A
True
B
False
C
20
D
18

Choose one

1 point

What value does this Python expression produce?

2 + 3 * 4

A
20
B
24
C
14
D
11

Choose one

1 point

What does the statement count = 12 do in Python?

A
It tests whether count already equals 12.
B
It stores 12 in count.
C
It increases count by 12.
D
It converts count to a string.

Choose one

1 point

A program divides 17 items into groups of 5. Which result correctly describes 17 // 5 and 17 % 5?

A
2 complete groups and 3 remaining
B
3 complete groups and 0 remaining
C
4 complete groups and 2 remaining
D
3 complete groups and 2 remaining

Choose one

1 point

Which statement correctly reads a whole-number quantity from the user so it can be used in arithmetic?

A
quantity = int(input("How many items? "))
B
quantity = input("How many items? ")
C
quantity = str(input("How many items? "))
D
quantity = bool(input("How many items? "))

Choose one

1 point

Which sequence follows the recommended input-processing-output pattern for a program that calculates a total from user-entered values?

A
Display output, read input, convert input, then compute
B
Compute a result, read input, display output, then convert input
C
Read input, convert it, compute a result, then display or store it
D
Convert output, display input, read a result, then compute

Choose one

1 point

Why would a Python programmer write TAX_RATE = 0.07 using an uppercase name?

A
Python automatically prevents reassignment of every uppercase name.
B
Uppercase naming communicates the intention that the value should remain stable.
C
A constant must always be stored as a string.
D
Constants can only represent conversion factors.

Choose one

1 point

Which statement correctly creates the text Age: 20 when age contains the integer 20?

A
message = "Age: " + age
B
message = age + ": Age"
C
message = "Age: " * age
D
message = f"Age: {age}"

Choose one

1 point

Using the minutes-to-hours procedure from the material, what should the program display for an input of 125 minutes?

A
2 hours and 5 minutes
B
2 hours and 60 minutes
C
1 hour and 65 minutes
D
3 hours and 5 minutes

Choose one

1 point

What happens when a Python program evaluates int("hello")?

A
It returns the Boolean value False.
B
It returns the string hello as an integer.
C
It causes an error because the text is not a valid integer representation.
D
It rounds the text to the nearest whole number.

Choose one

1 point

A Python program asks the user for the number of items and then multiplies that value by a price. Which statement stores the user’s response in the most appropriate type for the multiplication?

A
quantity = input("How many?")
B
quantity = int(input("How many?"))
C
quantity = str(input("How many?"))
D
quantity = bool(input("How many?"))

Choose one

1 point

What value does the Python expression 2 + 3 * 4 produce?

A
20
B
24
C
14
D
9

Choose one

1 point

Using Python’s // and % operators, what should a program report for an input of 125 minutes when converting the time into complete hours and remaining minutes?

A
2 hours and 5 minutes
B
2 hours and 0 minutes
C
3 hours and 5 minutes
D
125 hours and 0 minutes

Choose one

1 point

After Python executes count = 10 followed by count = count + 1, what is the resulting value of count?

A
count remains 10 because variables cannot be updated
B
The code tests whether count equals 11
C
The code causes an error because the same variable appears on both sides
D
count becomes 11

Choose one

1 point

A program needs a named value representing a tax rate that is intended to remain stable. Which name best follows the Python convention for a constant?

A
tax
B
TAX_RATE
C
tax rate
D
TaxRateValueThatChangesEveryTransaction