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 for −

raining'. find('z') ?

Answer : C

Explanation

If the string is not found by method find() , it returns the integer -1.

Q 2 - What is the output of following code −

[ (a,b) for a in range(3) for b in range(a) ]

A - [ (1,0),(2,1),(3,2)]

B - [ (0,0),(1,1),(2,2)]

C - [(1,0),(2,1),(2,1)]

D - [ (1,0),(2,0),(2,1)]

Answer : D

Explanation

This is nested for loop. The output of first for loop will be the value for the next loop.

Q 3 - In the following options which are python libraries which are used for data analysis and scientific computations

Answer : D

Explanation

Numpy,Scipy,pandas are few libraries in python which are used for data analysis and scientific computations.

Q 4 - What is output of following code −

def func(n):
   if(n==1):
      return 1;
   else:
      return(n+func(n-1))
print(func(4))

Answer : B

Q 5 - What is the output of the following code?

import math
 
   def main():
      math.cos(math.pi)
main()
   print(main())

A - -1

B - None

C - Error

D - Math.pi not defined

Answer : B

Explanation

None is printed because function does not return the value.

Q 6 - What is the output of the following code?

eval(''1 + 3 * 2'')

Answer : D

Explanation

Eval is a method used to evaluate the values entered in the braces.

Q 7 - What is the out of the code?

def rev_func(x,length): 
   print(x[length-1],end='' '') 
   rev_func(x,length-1) 
x=[11, 12, 13, 14, 15] 
rev_func(x,5)

A - The program runs fine without error.

B - Program displays 15 14 13 12 11.

C - Program displays 11 12 13 14 15.

D - Program displays 15 14 13 12 11 and then raises an index out of range exception.

Answer : D

Explanation

In the print statement of rev_func we use the index value of list x. We decrement the value of length of function because it becomes the index of x in the print statement.

Q 8 - Which function can be used on the file to display a dialog for saving a file?

A - Filename = savefilename()

B - Filename = asksavefilename()

C - Fielname = asksaveasfilename()

D - No such option in python.

Answer : C

Explanation

This is the default method to display a dialog for saving a file in Tkinter module of Python.

Q 9 - Which way among them is used to create an event loop ?

A - Window.eventloop()

B - Window.mainloop()

C - Window.loop()

D - Eventloop.window()

Answer : B

Q 10 - Which can be an Identifier among them in Python?

Answer : C

Explanation

Because Identifiers start from letter A to Z or a to z or an underscore (_) followed by more letters or zero or underscores and digits (0 to 9). Python does not allow @ or $ or % within the identifier.

python_questions_answers.htm