Python Online Quiz

Following quiz provides Multiple Choice Questions (MCQs) related to Python. You will have to read all the given answers and click over the correct answer. If you are not sure about the answer then you can check the answer using Show Answer button. You can use Next Quiz button to check new set of questions in the quiz.

Q 1 - What is output of −

33 == 33.0

A - False

B - True

C - 33

D - None of the above

Answer : B

Explanation

comparison operator evaluates true and false. And in python we need not specify whether the number is int or float.

Q 2 - How can we swap two numbers a = 10, b = 20 in python without using third variable?

b = a

a = b

Answer : C

Explanation

To swap two numbers we can use both a & b option. Both a & b are similar statemnts written in different ways.

Q 3 - Pylab is a package that combine _______,________&______ into a single namespace.

A - Numpy, scipy & matplotlib

B - Numpy, matplotlib & pandas

C - Numpy, pandas & matplotlib

D - Numpy, scipy & pandas

Answer : A

Explanation

pylab package in python combines numpy, scipy & matplotlib into a single namespace.

Q 4 - Suppose we have a set a = {10,9,8,7}, and we execute a.remove(14) what will happen ?

A - We cannot remove an element from set.

B - Method is executed but no exception is raised.

C - Key error is raised.

D - There doesn't exist such method as remove.

Answer : C

Explanation

since there is no such element in the set, so key error is raised.

Q 5 - What is the output of the code?

def f():
   global z
   print('z is: ', z)
   z=50
   print('new value of global z is: ', z)

f()
   print('Value of z is: ', z)

A - z is 100

new value of global z is: 100

value of z is 100

B - z is 100

new value of global z is: 100

value of z is 50

C - z is 100

new value of global z is: 50

value of z is 100

D - z is 100

new value of global z is: 50

value of z is 50

Answer : D

Explanation

Here in the above code global' keyword is used to state that z' is global variable. So when we assign a value to z in the function then the new assigned value is reflected whenever we use the value of z' in the main block or outside the function.

Q 6 - What happens in the below code?

class A: 
   def __init__(self, i=100): 
      self.i=i 
class B(A): 
   def __init__(self,j=0): 
      self.j=j 
def main(): 
   b= B() 
   print(b.i) 
   print(b.j) 
main()

A - Class B inherits all the data fields of class A.

B - Class B needs an Argument.

C - The data field j' cannot be accessed by object b.

D - Class B is inheriting class A but the data field i' in A cannot be inherited.