Python Multiple Choice Questions – Sets

This set of Python Multiple Choice Questions & Answers (MCQs) focuses on “Sets”.

1. Which of these about a set is not true?
a) Mutable data type
b) Does not allow duplicate values
c) Data type with unordered values
d) Immutable data type
View Answer

2. Which of the following is not the correct syntax for creating a set?
a) set([[1,2],[3,4]])
b) set([1,2,2,3,4])
c) set((1,2,3,4))
d) {1,2,3,4}
View Answer

3. What will be the output of the following Python code?

nums = set([1,1,2,3,3,3,4,4])
print(len(nums))

a) 7
b) Error, invalid syntax for formation of set
c) 4
d) 8
View Answer

4. What will be the output of the following Python code?

a = [5,5,6,7,7,7]
b = set(a)
def test(lst):
    if lst in b:
        return 1
    else:
        return 0
for i in  filter(test, a):
    print(i,end=" ")

a) 5 5 6
b) 5 6 7
c) 5 5 6 7 7 7
d) 5 6 7 7 7
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5. Which of the following statements is used to create an empty set?
a) { }
b) set()
c) [ ]
d) ( )
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6. What will be the output of the following Python code?

>>> a={5,4}
>>> b={1,2,4,5}
>>> a<b

a) {1,2}
b) True
c) False
d) Invalid operation
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7. If a={5,6,7,8}, which of the following statements is false?
a) print(len(a))
b) print(min(a))
c) a.remove(5)
d) a[2]=45
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8. If a={5,6,7}, what happens when a.add(5) is executed?
a) a={5,5,6,7}
b) a={5,6,7}
c) Error as there is no add function for set data type
d) Error as 5 already exists in the set
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9. What will be the output of the following Python code?

>>> a={4,5,6}
>>> b={2,8,6}
>>> a+b

a) {4,5,6,2,8}
b) {4,5,6,2,8,6}
c) Error as unsupported operand type for sets
d) Error as the duplicate item 6 is present in both sets
View Answer

10. What will be the output of the following Python code?

>>> a={4,5,6}
>>> b={2,8,6}
>>> a-b

a) {4,5}
b) {6}
c) Error as unsupported operand type for set data type
d) Error as the duplicate item 6 is present in both sets
View Answer

11. What will be the output of the following Python code?

>>> a={5,6,7,8}
>>> b={7,8,10,11}
>>> a^b

a) {5,6,7,8,10,11}
b) {7,8}
c) Error as unsupported operand type of set data type
d) {5,6,10,11}
View Answer

12. What will be the output of the following Python code?

>>> s={5,6}
>>> s*3

a) Error as unsupported operand type for set data type
b) {5,6,5,6,5,6}
c) {5,6}
d) Error as multiplication creates duplicate elements which isn’t allowed
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13. What will be the output of the following Python code?

>>> a={5,6,7,8}
>>> b={7,5,6,8}
>>> a==b

a) True
b) False
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14. What will be the output of the following Python code?

>>> a={3,4,5}
>>> b={5,6,7}
>>> a|b

a) Invalid operation
b) {3, 4, 5, 6, 7}
c) {5}
d) {3,4,6,7}
View Answer

15. Is the following Python code valid?

a={3,4,{7,5}}
print(a[2][0])

a) Yes, 7 is printed
b) Error, elements of a set can’t be printed
c) Error, subsets aren’t allowed
d) Yes, {7,5} is printed
View Answer

More MCQs on Python Sets:

• Python Sets MCQ – 2
• Python Sets MCQ – 3
• Python Sets MCQ – 4
• Python Sets MCQ – 5

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