Python Tuples MCQ Questions and Answers

Tuples in Python are fundamental data structure that function as immutable sequences. They are used to store multiple items in a single variable and can contain elements of different types. Here we present 15 multiple-choice questions to test your knowledge of Python Tuples. Each MCQ has the correct answer with an explanation. 

1. How is a tuple with a single element defined in Python?

a) (item,)
b) (item)
c) item,
d) [item]

Answer:

a) (item,)

Explanation:

In Python, a single element tuple must have a comma after the item, otherwise, it's not recognized as a tuple.

2. How do you access the second element of a tuple 'my_tuple'?

a) my_tuple[1]
b) my_tuple[2]
c) my_tuple.get(1)
d) my_tuple(1)

Answer:

a) my_tuple[1]

Explanation:

Tuple indices start at 0. So the second element is accessed using my_tuple[1].

3. Which of the following is true about modifying tuples?

a) Tuples can be resized
b) Elements of a tuple can be changed
c) Tuples can never be modified
d) Only string elements in a tuple can be changed

Answer:

c) Tuples can never be modified

Explanation:

Tuples are immutable in Python, meaning their size and the values of elements cannot be changed.

4. How do you unpack the values of a tuple 't' into variables a, b, and c?

a) a, b, c = t
b) a, b, c = unpack(t)
c) t.unpack(a, b, c)
d) a, b, c = t[]

Answer:

a) a, b, c = t

Explanation:

The syntax a, b, c = t automatically unpacks the values of tuple 't' into variables a, b, and c.

5. How do you loop through a tuple named 'my_tuple' to print each value?

a) for i in my_tuple: print(i)
b) for i in range(len(my_tuple)): print(my_tuple[i])
c) Both a and b
d) None of the above

Answer:

c) Both a and b

Explanation:

Both methods are valid. You can loop directly through the tuple items or loop through the tuple indices.

6. How do you concatenate tuple1 and tuple2 in Python?

a) tuple1 + tuple2
b) tuple1 & tuple2
c) tuple1.concat(tuple2)
d) concat(tuple1, tuple2)

Answer:

a) tuple1 + tuple2

Explanation:

The + operator is used to concatenate tuples in Python.

7. Which method would you use to count the occurrences of an element in a tuple?

a) count()
b) index()
c) find()
d) lookup()

Answer:

a) count()

Explanation:

The count() method returns the number of times an element appears in a tuple.

8. What is the output of ('Hi!') * 4 in Python?

a) ('Hi!', 'Hi!', 'Hi!', 'Hi!')
b) 'Hi!Hi!Hi!Hi!'
c) Error
d) ('Hi!' * 4)

Answer:

b) 'Hi!Hi!Hi!Hi!'

Explanation:

Multiplying a string by an integer n concatenates the string n times.

9. How do you convert a list [1, 2, 3] to a tuple in Python?

a) tuple([1, 2, 3])
b) ([1, 2, 3]).toTuple()
c) convert([1, 2, 3], tuple)
d) Tuple([1, 2, 3])

Answer:

a) tuple([1, 2, 3])

Explanation:

The tuple() function is used to convert a list to a tuple.

10. What is the result of ('a', 'b') < ('c', 'd') in Python?

a) True
b) False
c) Error
d) None

Answer:

a) True

Explanation:

Tuple comparison is performed element by element. 'a' is less than 'c', so the expression is True.

11. What does my_tuple.index('a') return if my_tuple = ('a', 'b', 'a')?

a) 0
b) 1
c) 2
d) 3

Answer:

a) 0

Explanation:

The index() method returns the index of the first occurrence of the value.

12. What does len(('a', 'b', 'c')) return?

a) 3
b) 2
c) 1
d) Error

Answer:

a) 3

Explanation:

len() returns the number of elements in the tuple.

13. How do you create a nested tuple?

a) ((1, 2), (3, 4))
b) [1, 2], [3, 4]
c) (1, 2) and (3, 4)
d) Nested(1, 2, 3, 4)

Answer:

a) ((1, 2), (3, 4))

Explanation:

Nested tuples are created by placing tuples inside another tuple.

14. What will ('Hello',) * 2 produce?

a) ('Hello', 'Hello')
b) ('HelloHello',)
c) ('Hello') * 2
d) Error

Answer:

a) ('Hello', 'Hello')

Explanation:

Multiplying a tuple by an integer n repeats the tuple n times.

15. What is the output of the following code?

t = (1, 2, [3, 4])
t[2][0] = 'x'
print(t)
a) (1, 2, ['x', 4])
b) Error
c) (1, 'x', [3, 4])
d) (1, 2, [3, 'x'])

Answer:

a) (1, 2, ['x', 4])

Explanation:

While tuples are immutable, their mutable elements (like lists) can be modified.

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