Practice

Front

Which of the following is a valid variable name in Python? Cannot start with numbers, symbols. Cannot be any keywords. 1variable, @var, my_var, for

Back

my_var

Answer explanation

Variable in Python must start with a letter or underscore and cannot be keywords. my_var is valid, while the others violate these rules.

Front

What is the output of the following Python code?
print(type(3.14))

Back

float

Answer explanation

3.14 is a floating-point number in Python, and its type is float.

Front

What will be the output of this code?
x = 5
y = 10
print(x + y)

Back

15

Answer explanation

The + operator adds the two integers, 5 and 10, resulting in 15.

Front

Which of the following is the correct way to declare a variable in Python? var x = 10, x == 10, x = 10 , None of the above

Back

x = 10

Answer explanation

Python uses = for variable assignment without needing a type declaration like in some other languages.

Front

Which of the following is invalid? _a = 1, __a = 1, __str__ = 1, none of the mentioned

Back

none of the mentioned

Front

Which of the following variable names is not valid in Python? a) my_var, b) _myvar, c) 2myvar, d) myVar2

Back

2myvar

Front

What is the result of this arithmetic operation in Python? 10 // 3

Back

3

Answer explanation

The // operator performs integer division, discarding the decimal part, so 10 // 3 results in 3.

Front

Which function is used to get input from the user in Python? Options: input(), raw_input(), get_input(), print()

Back

input()

Answer explanation

The input() function is used to take user input as a string in Python.

Front

What is the output of the following code?
print(5 < 10)

Back

True

Answer explanation

The < operator checks if 5 is less than 10, which is true, so it prints True.

Front

What is the result of the following expression in Python? not (True and False)

Back

True

Answer explanation

True and False is False, and not False is True.