Python Variables and Basic Concepts – 20 MCQ Chapter 4 Set-4

Python Variables and Basic Concepts – 20 MCQ Chapter 4 Set 4

📋 Questions 20 ⏱️ Time 30 min

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A* 100% A 80-99% B 60-79% C 40-59% D 0-39%

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Question 1 of 20

What is a variable in Python?

A command used to print output A name used to store data A type of loop A Python error

Question 2 of 20

Which symbol is used to assign a value to a variable in Python?

#ERROR! : #ERROR! ->

Question 3 of 20

Which is a valid Python variable name?

2student student name student_name student-name

Question 4 of 20

What will be the output of name = "Alice"; print(name)?

name Alice Error None

Question 5 of 20

Which variable name is NOT valid in Python?

student_age _age age2 2age

Question 6 of 20

What happens when the value of a variable is assigned again?

The program stops The variable gets a new value The variable is deleted The variable becomes a string

Question 7 of 20

What is the output of x, y, z = 10, 20, 30 followed by print(y)?

10 20 30 Error

Question 8 of 20

What happens in x = y = z = 100?

Only x stores 100 Only z stores 100 All three variables store 100 An error occurs

Question 9 of 20

What does casting mean in Python?

Deleting a variable Changing one data type into another Creating a loop Printing a value

Question 10 of 20

Which function converts a value to an integer?

str() float() type() int()

Question 11 of 20

What is the output of x = int(5.8); print(x)?

5.8 6 5 Error

Question 12 of 20

What is the output of x = float(5); print(x)?

5 5 5.5 Error

Question 13 of 20

Which function converts a value into a string?

int() type() str() float()

Question 14 of 20

Which function is used to check the data type of a variable?

print() input() type() str()

Question 15 of 20

What will type(25) return?

Question 16 of 20

Which statement correctly creates a string?

name = Alice name = "Alice" name = 20 name = int(Alice)

Question 17 of 20

Which statement about single and double quotes is correct?

Only single quotes can create strings Only double quotes can create strings Both can create strings Neither can create strings

Question 18 of 20

Why is this statement useful: text = "I'm learning Python."?

It creates an integer It allows an apostrophe inside the string It creates a float It changes the case of text

Question 19 of 20

What does case sensitivity mean in Python?

Numbers cannot be used Python ignores capitalization Uppercase and lowercase names are treated differently Only uppercase names are allowed

Question 20 of 20

Which pair represents two different Python variables?

name and name name and Name age and age student and student

Python Variables and Basic Concepts – 20 MCQ Quiz for Students

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Test your Python basics with these 20 multiple-choice questions on variables, variable creation, casting, data types, strings, quotes, naming rules, and case sensitivity. Ideal for NCERT/CBSE students and Python beginners.

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Python Variables MCQ

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Python Variables MCQ – 20 Questions with Answers

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python-variables-mcq-questions

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Practice 20 Python Variables MCQs with answers and explanations. Learn variables, casting, data types, strings, quotes, naming rules, and case sensitivity.

FAQ

What is a variable in Python?

A variable is a name used to store data or information in a Python program.

How do you create a variable in Python?

A variable is created by assigning a value using the = operator. For example, age = 20.

What is casting in Python?

Casting is the process of changing one data type into another, such as converting an integer into a float or string.

Which functions are commonly used for casting?

The commonly used casting functions are int(), float(), and str().

How can we check the type of a variable?

The type() function is used to check the data type of a variable.

Are single and double quotes both allowed in Python?

Yes. Python allows strings to be written using either single quotes or double quotes.

Is Python case-sensitive?

Yes. Python treats uppercase and lowercase letters as different. For example, Age and age are different variables.

What are the rules for naming Python variables?

A variable name can start with a letter or underscore, cannot start with a number, cannot contain spaces, and should use meaningful names.