Python Tuples MCQs (25)
Python Training in Vizag (Softenant)1) Tuple literal.
t = (1, 2, 3)
print(type(t).__name__, len(t))A. tuple 3
B. list 3
C. tuple 2
D. list 2
2) Single-element tuple.
x = (5)
y = (5,)
print(type(x).__name__, type(y).__name__)A. int int
B. tuple tuple
C. int tuple
D. tuple int
3) Immutability test.
t = (1, 2, 3)
try:
t[0] = 9
except Exception as e:
print(type(e).__name__)A. TypeError
B. ValueError
C. IndexError
D. AttributeError
4) Tuple packing/unpacking.
a, b = 1, 2
t = a, b
x, y = t
print(x + y)A. 1
B. 2
C. 3
D. (1, 2)
5) Swapping using tuples.
a, b = 3, 5
a, b = b, a
print(a, b)A. 3 5
B. 5 3
C. (5,3)
D. Error
6) Indexing & slicing.
t = ('a','b','c','d')
print(t[1], t[1:3])A. b (‘b’,’c’)
B. b [‘b’,’c’]
C. c (‘b’,’c’)
D. IndexError
7) Methods available?
print(hasattr(tuple, 'append'), hasattr(tuple, 'count'))A. True True
B. False True
C. True False
D. False False
8) Concatenation.
t1 = (1,2); t2 = (3,)
print(t1 + t2)A. (1, 2, 3)
B. (1, 2, (3,))
C. [1, 2, 3]
D. Error
9) Repetition.
print(('x',) * 3)A. (‘x’,’x’,’x’)
B. [‘x’,’x’,’x’]
C. ‘xxx’
D. Error
10) Membership.
t = (1,2,3)
print(2 in t, 4 in t)A. True True
B. True False
C. False True
D. False False
11) Tuple of lists mutability.
t = ([1], [2])
t[0].append(9)
print(t)A. ([1,9], [2])
B. ([1], [2])
C. TypeError
D. AttributeError
12) Hashability requirement.
try:
d = { (1,2): "ok", [1,2]: "nope" }
except Exception as e:
print(type(e).__name__)A. KeyError
B. TypeError
C. ValueError
D. None
13) Count & index.
t = (1,2,2,3)
print(t.count(2), t.index(2))A. 2 1
B. 1 2
C. 2 2
D. 1 1
14) Converting to tuple.
print(tuple("py"))A. (‘py’,)
B. (‘p’,’y’)
C. [‘p’,’y’]
D. ‘py’
15) Starred unpacking.
t = (1,2,3,4)
a, *mid, d = t
print(a, mid, d)A. 1 [2,3] 4
B. 1 (2,3) 4
C. 1 [2] 4
D. ValueError
16) Tuple comprehension?
t = (x*x for x in range(3))
print(type(t).__name__) tuple
B. list
C. generator
D. range
17) Create a tuple from generator.
g = (i for i in range(3))
t = tuple(g)
print(t)A. (0, 1, 2)
B. generator object
C. [0,1,2]
D. (1, 2, 3)
18) Sorted tuple.
t = (3,1,2)
print(sorted(t), t)A. [1,2,3] (3,1,2)
B. (1,2,3) (1,2,3)
C. [1,2,3] (1,2,3)
D. Error
19) Tuple as dict key works.
d = {}
d[(1,2)] = 9
print(d[(1,2)])A. 9
B. KeyError
C. TypeError
None
20) Unpack error count.
t = (1,2,3)
a, b = tA. ValueError
B. TypeError
C. Works: a=1, b=(2,3)
D. Works: a=(1,2), b=3
21) Nesting + indexing.
t = (1, (2, 3), 4)
print(t[1][0])A. 1
B. 2
C. 3
D. TypeError
22) Min/Max mixed types (Py3)?
min((1, "2"))A. 1
B. “2”
C. TypeError
D. None
23) Zip creates tuples.
print(list(zip([1,2], ['a','b'])))A. [(1,’a’), (2,’b’)]
B. [[1,’a’], [2,’b’]]
C. ((1,’a’), (2,’b’))
D. dict
24) Enumerate returns…
print(list(enumerate(('x','y'))))A. [(0,’x’), (1,’y’)]
B. ((0,’x’), (1,’y’))
C. [‘x’,’y’]
D. {‘x’:0,’y’:1}
25) Trailing comma creates tuple.
x = 1,
print(x, type(x).__name__)A. (1,) tuple
B. 1 int
C. [1] list
D. Error
Answer Key
1) A
2) C
3) A
4) C
5) B
6) A
7) B
8) A
9) A
10) B
11) A
12) B
13) A
14) B
15) A
16) C
17) A
18) A
19) A
20) A
21) B
22) C
23) A
24) A
25) A