Python Set MCQ : Set 2

11). Which method is used to check if a set is a superset of another set?

a) is_superset()
b) is_super()
c) superset()
d) issubset()

Correct answer is: a) is_superset()
Explanation: The is_superset() method is used to check if a set is a superset of another set.

12). Which method is used to check if two sets are equal?

a) is_equal()
b) equal()
c) equals()
d) == operator

Correct answer is: d) == operator
Explanation: The == operator is used to check if two sets are equal.

13). Which method is used to remove and return an arbitrary element from a set?

a) remove()
b) delete()
c) pop()
d) extract()

Correct answer is: c) pop()
Explanation: The pop() method removes and returns an arbitrary element from a set.

14). What is the output of the following code?

a = {1, 2, 3, 5, 6}
print(“Original set: “, a)
a.add(7)
print(“New set: “, a)

a) Original set: {1, 2, 3, 5, 6}, New set: {1, 2, 3, 5, 6}
b) Original set: {1, 2, 3, 5, 6}, New set: {1, 2, 3, 5, 6, 7}
c) Original set: {1, 2, 3, 5, 6}, New set: {7}
d) Original set: {1, 2, 3, 5, 6}, New set: {1, 2, 3, 5, 6, 7, 7}

Correct answer is: b) Original set: {1, 2, 3, 5, 6}, New set: {1, 2, 3, 5, 6, 7}
Explanation: The original set `a` contains the elements {1, 2, 3, 5, 6}. The `add()` method is used to add the element 7 to the set `a`. After adding 7, the new set becomes {1, 2, 3, 5, 6, 7}. Therefore, the output is “Original set: {1, 2, 3, 5, 6}, New set: {1, 2, 3, 5, 6, 7}”.

15). What is the output of the following code?

a = {1, 2, 3, 5, 6}
print(“Original set: “, a)
a.remove(5)
print(“New set: “, a)

a) Original set: {1, 2, 3, 5, 6}
New set: {1, 2, 3, 6}
b) Original set: {1, 2, 3, 5, 6}
New set: {1, 2, 3, 5, 6}
c) Original set: {1, 2, 3, 5, 6}
New set: {1, 2, 3}
d) Original set: {1, 2, 3, 5, 6}
New set: {1, 2, 3, 4, 6}

Correct answer is: a) Original set: {1, 2, 3, 5, 6}
New set: {1, 2, 3, 6}
Explanation: The original set `a` contains the elements 1, 2, 3, 5, and 6. The `remove(5)` method is used to remove the element 5 from the set. After removal, the new set `a` contains the elements 1, 2, and 3. Therefore, the output is “Original set: {1, 2, 3, 5, 6}” and “New set: {1, 2, 3, 6}”.

16). What is the output of the following code?

a = {1, 2, 3, 5, 6}
print(“Original set: “, a)
print(“Length of given set: “, len(a))

a) Original set: {1, 2, 3, 5, 6}; Length of given set: 5
b) Original set: {1, 2, 3, 5, 6}; Length of given set: 6
c) Original set: {1, 2, 3, 5, 6}; Length of given set: 4
d) Original set: {1, 2, 3, 5, 6}; Length of given set: 3

Correct answer is: a) Original set: {1, 2, 3, 5, 6}; Length of given set: 5
Explanation: The set `a` contains the elements 1, 2, 3, 5, and 6. When printing the original set, it will display as `{1, 2, 3, 5, 6}`. The `len(a)` function returns the length of the set, which is 5 in this case.

17). What is the output of the following code?

a = {1,2,3,5,6}
print(“Original set: “,a)
if 5 in a:
    print(“True”)
else:
    print(“False”)

a) Original set: {1, 2, 3, 5, 6}\nTrue
b) Original set: {1, 2, 3, 5, 6}\nFalse
c) Original set: {1, 2, 3, 5, 6}
d) True

Correct answer is: a) Original set: {1, 2, 3, 5, 6}\nTrue
Explanation: The code defines a set “a” with the elements {1, 2, 3, 5, 6}. The print statement displays the original set as “Original set: {1, 2, 3, 5, 6}”. The if statement checks if the number 5 is present in the set. Since 5 is indeed an element of the set, the code block under the if statement executes, which prints “True”. Hence, the output will be “Original set: {1, 2, 3, 5, 6}\nTrue” (where “\n” represents a new line).

18). What is the output of the following code?

a = {1, 2, 4, 5}
b = {7, 8, 9, 1}
print(“Original set1: “, a)
print(“Original set2: “, b)
print(“Union of a and b: “, a.union(b))

a) Original set1: {1, 2, 4, 5} Original set2: {7, 8, 9, 1} Union of a and b: {1, 2, 4, 5, 7, 8, 9}
b) Original set1: {1, 2, 4, 5} Original set2: {7, 8, 9, 1} Union of a and b: {1, 2, 4, 5}
c) Original set1: {1, 2, 4, 5} Original set2: {7, 8, 9, 1} Union of a and b: {7, 8, 9}
d) Original set1: {1, 2, 4, 5} Original set2: {7, 8, 9, 1} Union of a and b: {1, 7, 2, 4, 5, 8, 9}

Correct answer is: a) Original set1: {1, 2, 4, 5} Original set2: {7, 8, 9, 1} Union of a and b: {1, 2, 4, 5, 7, 8, 9}
Explanation: The code creates two sets, `a` and `b`, with specific elements. The `union()` method is then called on set `a` with `b` as an argument. The `union()` method returns a new set that contains all unique elements from both sets. In this case, the union of `a` and `b` will be {1, 2, 4, 5, 7, 8, 9}, which will be printed as the output.

20). What is the output of the code?

a = {1,2,4,5}
b = {7,8,9,1}
print(“Original set1: “,a)
print(“Original set2: “,b)
print(“Intersection of a and b: “,a.intersection(b))

a) Original set1: {1, 2, 4, 5} Original set2: {7, 8, 9, 1} Intersection of a and b: {1}
b) Original set1: {1, 2, 4, 5} Original set2: {7, 8, 9, 1} Intersection of a and b: {1, 7, 8, 9}
c) Original set1: {1, 2, 4, 5} Original set2: {7, 8, 9, 1} Intersection of a and b: {2, 4, 5}
d) Original set1: {1, 2, 4, 5} Original set2: {7, 8, 9, 1} Intersection of a and b: {7, 8, 9}

Correct answer is: a) Original set1: {1, 2, 4, 5} Original set2: {7, 8, 9, 1} Intersection of a and b: {1}
Explanation: The intersection of sets a and b is the set of elements that are common to both sets. In this case, the intersection is {1}, as 1 is present in both sets a and b. The intersection() method is used to find the intersection of sets. The code correctly prints the original sets and the intersection set.