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Test: Tuples, Dictionary and Sets - 1 - EmSAT Achieve MCQ


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15 Questions MCQ Test - Test: Tuples, Dictionary and Sets - 1

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Test: Tuples, Dictionary and Sets - 1 - Question 1

Which of the following statements about tuples in Python is true?

Detailed Solution for Test: Tuples, Dictionary and Sets - 1 - Question 1

Tuples maintain the order of elements, unlike sets or dictionaries.

Test: Tuples, Dictionary and Sets - 1 - Question 2

What is the key difference between a dictionary and a list in Python?

Detailed Solution for Test: Tuples, Dictionary and Sets - 1 - Question 2

Lists are ordered collections, whereas dictionaries are unordered and use key-value pairs.

Test: Tuples, Dictionary and Sets - 1 - Question 3

Which of the following methods is used to add an element to a set in Python?

Detailed Solution for Test: Tuples, Dictionary and Sets - 1 - Question 3

The add() method is used to add an element to a set in Python.

Test: Tuples, Dictionary and Sets - 1 - Question 4

What will be the output of the following code?
my_tuple = (1, 2, 3, 4, 5)
print(my_tuple[2])

Detailed Solution for Test: Tuples, Dictionary and Sets - 1 - Question 4

Tuple indexing starts from 0, so my_tuple[2] will access the third element (index 2) of the tuple.

Test: Tuples, Dictionary and Sets - 1 - Question 5

Which of the following statements about sets in Python is true?

Detailed Solution for Test: Tuples, Dictionary and Sets - 1 - Question 5

Sets do not allow duplicate elements. Each element in a set is unique.

Test: Tuples, Dictionary and Sets - 1 - Question 6

What will be the output of the following code?
my_dict = {'name': 'John', 'age': 25, 'city': 'New York'}
print(my_dict.get('address'))

Detailed Solution for Test: Tuples, Dictionary and Sets - 1 - Question 6

The get() method returns the value associated with the specified key. If the key is not found, it returns None.

Test: Tuples, Dictionary and Sets - 1 - Question 7

What will be the output of the following code?
my_set = {1, 2, 3, 4, 5}
my_set.add(6)
print(len(my_set))

Detailed Solution for Test: Tuples, Dictionary and Sets - 1 - Question 7

The add() method adds an element to the set. In this case, 6 is added to the set, resulting in a total of 6 elements.

Test: Tuples, Dictionary and Sets - 1 - Question 8

What will be the output of the following code?
my_tuple = ('apple', 'banana', 'cherry')
my_tuple[0] = 'orange'
print(my_tuple)

Detailed Solution for Test: Tuples, Dictionary and Sets - 1 - Question 8

Tuples are immutable, which means you cannot change individual elements once a tuple is created.

Test: Tuples, Dictionary and Sets - 1 - Question 9

What will be the output of the following code?
my_dict = {'name': 'John', 'age': 25, 'city': 'New York'}
del my_dict['age']
print(my_dict)

Detailed Solution for Test: Tuples, Dictionary and Sets - 1 - Question 9

The del keyword is used to remove an item from a dictionary based on its key.

Test: Tuples, Dictionary and Sets - 1 - Question 10

What will be the output of the following code?
my_set = {1, 2, 3, 4, 5}
my_set.remove(6)
print(my_set)

Detailed Solution for Test: Tuples, Dictionary and Sets - 1 - Question 10

The remove() method removes an element from a set. If the element is not found, it raises a KeyError.

Test: Tuples, Dictionary and Sets - 1 - Question 11

Given two sets: set1 = {1, 2, 3, 4, 5} and set2 = {4, 5, 6, 7}, which code snippet can be used to find the elements common to both sets?

Detailed Solution for Test: Tuples, Dictionary and Sets - 1 - Question 11

The intersection() method returns a new set containing the elements common to both set1 and set2.

Test: Tuples, Dictionary and Sets - 1 - Question 12

What will be the output of the following code?
my_dict = {'a': 1, 'b': 2, 'c': 3}
result = my_dict.pop('b')
print(result)

Detailed Solution for Test: Tuples, Dictionary and Sets - 1 - Question 12

The pop() method removes the item with the specified key from the dictionary and returns its value.

Test: Tuples, Dictionary and Sets - 1 - Question 13

What will be the output of the following code?
my_tuple = ('apple', 'banana', 'cherry')
new_tuple = my_tuple + ('orange',)
print(new_tuple)

Detailed Solution for Test: Tuples, Dictionary and Sets - 1 - Question 13

The + operator can be used to concatenate tuples. The comma at the end ensures that the second tuple is recognized as a tuple.

Test: Tuples, Dictionary and Sets - 1 - Question 14

What will be the output of the following code?
my_set = {1, 2, 3, 4, 5}
new_set = {x**2 for x in my_set}
print(new_set)

Detailed Solution for Test: Tuples, Dictionary and Sets - 1 - Question 14

The given code uses a set comprehension to create a new set where each element is the square of the corresponding element in the original set.

Test: Tuples, Dictionary and Sets - 1 - Question 15

What will be the output of the following code?
my_dict = {'name': 'John', 'age': 25, 'city': 'New York'}
my_dict.clear()
print(my_dict)

Detailed Solution for Test: Tuples, Dictionary and Sets - 1 - Question 15

The clear() method removes all items from the dictionary, resulting in an empty dictionary.

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