Python Quiz

Question 1

How do you remove duplicates from a list?

Accepted Answer

Create a new list with unique items

Question 2

What happens when using insert() method on a list?

Accepted Answer

Adds an element at specified position

Question 3

What does the split() method do to a string?

Accepted Answer

Splits into a list of substrings

Question 4

What will be the output of: for fruit in ['apple','banana','mango']: print("I like",fruit)

Accepted Answer

I like apple I like banana I like mango

Question 5

Which is the correct example of list comprehension to create powers of 2?

Accepted Answer

[2 ** x for x in range(10)]

Question 6

What does the pop() method do without arguments?

Accepted Answer

Removes and returns the last element

Question 7

What will be the output of: l=[10,20,30,40,50,60]; for i in range(len(l)): if(i%2==0): print(l[i],end='#')

Accepted Answer

10#30#50#

Question 8

What will be the output of: odd = [x for x in range(20) if x % 2 == 1]; odd

Accepted Answer

[1, 3, 5, 7, 9, 11, 13, 15, 17, 19]

Question 9

What's the correct way to find the second largest element in a list?

Accepted Answer

Sort the list and access the second last element

Question 10

What will be the output of: l="Welcome to Python".split(); l

Accepted Answer

['Welcome', 'to', 'Python']

Question 11

What will be the output of: theList=[1, 2, [1.1, 2.2]]; len(theList)

Accepted Answer

3

Question 12

What will be the output of: pow2 = [2 ** x for x in range(10) if x > 5]; pow2

Accepted Answer

[64, 128, 256, 512]

Question 13

What will be the output of: [None] * 10

Accepted Answer

A list with 10 None values

Question 14

What will be the output of: a=[[[1,2],[3,4],5],[6,7]]; a[0][1][1]

Accepted Answer

4

Question 15

What will be the output of: print([i.lower() for i in "HELLO"])

Accepted Answer

['h', 'e', 'l', 'l', 'o']

Question 16

What does the extend() method do to a list?

Accepted Answer

Adds all elements of an iterable to the list

Question 17

What will be the output of: resList = [x+y for x in ['Hello ', 'Good '] for y in ['Dear', 'Bye']]

Accepted Answer

['Hello Dear', 'Hello Bye', 'Good Dear', 'Good Bye']

Question 18

What will be the output of: data = [[[1, 2], [3, 4]], [[5, 6], [7, 8]]]; print(data[1][0][0])

Accepted Answer

5

Question 19

What will be the output of: a=[2,1,3,5,2,4]; a.remove(2); a

Accepted Answer

[1, 3, 5, 2, 4]

Question 20

How do you check if an element exists in a list?

Accepted Answer

Using 'in' operator

Question 21

What will be the output of: a=[[]]*3; a[1].append(7); print(a)

Accepted Answer

[[7], [7], [7]]

Question 22

What will be the output of: a,b=[3,1,2],[5,4,6]; a+b

Accepted Answer

[3, 1, 2, 5, 4, 6]

Question 23

What will be the output of: l=[[i*j for j in range(1,11)] for i in range(7,9)]

Accepted Answer

Multiplication tables for 7 and 8

Question 24

What will be the output of: m = [[x, x + 1, x + 2] for x in range(0, 3)]; m

Accepted Answer

[[0, 1, 2], [1, 2, 3], [2, 3, 4]]

Question 25

How do you append multiple values to a list at once?

Accepted Answer

Use the extend() method

Question 26

What will be the output of: list1=[1, 3, 2]; list1 * 2

Accepted Answer

[1, 3, 2, 1, 3, 2]

Question 27

What will be the output of: list("a#b#c#d".split('#'))

Accepted Answer

['a', 'b', 'c', 'd']

Question 28

How do you create a list of even numbers from 1 to 100?

Accepted Answer

Both option 1 and 2

Question 29

What will be the output of: List = [True, 50, 10]; List.insert(2, 5); sum(List)

Accepted Answer

66

Question 30

What's the correct way to count occurrences of each element in a list?

Accepted Answer

Both option 1 and 3

Python Quiz

Questions 30

Python Quiz

Questions 30