Python Strings MCQs (25)
Python Training in Vizag (Softenant)1) Indexing
s = "abc"
print(s[1])A. a
B. b
C. c
D. IndexError
2) Slicing (stop exclusive)
s = "python"
print(s[1:4])A. pyt
B. yth
C. ytho
D. on
3) Negative index
s = "abc"
print(s[-1])A. a
B. b
C. c
D. IndexError
4) Immutability
s = "hi"
s[0] = "H"A. Works → “Hi”
B. TypeError
C. ValueError
D. No effect
5) Concatenation & repetition
print("py" + "thon", "ab" * 3)A. python ababab
B. py thon ab
C. python ab
D. Error
6) find vs index
s = "data"
print(s.find("x"), end="; ")
try:
print(s.index("x"))
except Exception as e:
print(type(e).__name__)A. -1; ValueError
B. -1; -1
C. 0; ValueError
D. ValueError; -1
7) Count
print("banana".count("an"))A. 1
B. 2
C. 3
D. 0
8) Split on whitespace
s = "a b c"
print(s.split())A. [‘a’,’ b’,’ c’]
B. [‘a’,’b’,’c’]
C. [‘a’,’b c’]
D. Error
9) join requires strings
print(",".join(["1","2","3"]))A. 1,2,3
B. [‘1′,’2′,’3’]
C. TypeError
D. (no output)
10) Case methods return new strings
s = "Py"
t = s.lower()
print(s, t)A. py py
B. Py py
C. Py Py
D. py Py
11) Replace
s = "aaaa"
print(s.replace("aa","b"))A. bb
B. abaa
C. baaa
D. aaaa
12) Starts/Ends
s = "hello.py"
print(s.startswith("he"), s.endswith(".py"))A. True False
B. True True
C. False True
D. False False
13) Strip
s = " x "
print(len(s.strip()))A. 1
B. 3
C. 5
D. 0
14) Reverse with slicing
print("abcd"[::-1])A. abcd
B. dcba
C. abc
D. Error
15) Membership
s = "hello"
print("ell" in s, "z" in s)A. True True
B. True False
C. False True
D. False False
16) ord / chr
print(chr(97), ord('a'))A. a 97
B. 97 a
C. a a
D. 97 97
17) f-strings evaluate expressions
a = 2
print(f"{a+3}")A. 23
B. 5
C. a+3
D. {a+3}
18) format spec
x = 3.14159
print("{:.2f}".format(x))A. 3.14
B. 3.15
C. 3.14159
D. .2f
19) Unicode escape
s = "\u00E9"
print(s, len(s))A. é 1
B. \u00E9 4
C. é 2
D. Error
20) find not found
print("abc".find("z"))A. None
B. -1
C. 0
D. ValueError
21) partition vs split
print("a=b=c".partition("="))A. (‘a’,’=’, ‘b=c’)
B. [‘a’,’b’,’c’]
C. (‘a’,’=’, ‘b’,’=’, ‘c’)
D. (‘a’,’=’, ‘b’)
22) title()
print("hello world".title())A. Hello world
B. HELLO WORLD
C. Hello World
D. hello World
23) isdigit (simple)
print("123".isdigit(), "12a".isdigit())A. True True
B. True False
C. False True
D. False False
24) Out-of-range slice is safe
s = "abc"
print(s[10:])A. ” (empty)
B. IndexError
C. ‘c’
D. None
25) Padding with zfill
print("7".zfill(3))A. 007
B. 070
C. 700
D. ‘ 7’
Answer Key
1) B
2) B
3) C
4) B
5) A
6) A
7) B
8) B
9) A
10) B
11) A
12) B
13) A
14) B
15) B
16) A
17) B
18) A
19) A
20) B
21) A
22) C
23) B
24) A
25) A