Engineering Questions with Answers - Multiple Choice Questions
Python MCQs
1 - Question
1. What will be the output of the following Python code?
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class father:
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def __init__(self, param):
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self.o1 = param
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class child(father):
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def __init__(self, param):
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self.o2 = param
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>>>obj = child(22)
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>>>print "%d %d" % (obj.o1, obj.o2)
a) None None
b) None 22
c) 22 None
d) Error is generated
View Answer
Answer: d
Explanation: self.o1 was never created.
2 - Question
2. What will be the output of the following Python code?
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class tester:
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def __init__(self, id):
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self.id = str(id)
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id="224"
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>>>temp = tester(12)
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>>>print(temp.id)
a) 224
b) Error
c) 12
d) None
View Answer
Answer: c
Explanation: Id in this case will be the attribute of the class.
3 - Question
3. What will be the output of the following Python code?
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>>>example = "snow world"
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>>>print("%s" % example[4:7])
a) wo
b) world
c) sn
d) rl
View Answer
Answer: a
Explanation: Execute in the shell and verify.
4 - Question
4. What will be the output of the following Python code?
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>>>example = "snow world"
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>>>example[3] = 's'
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>>>print example
a) snow
b) snow world
c) Error
d) snos world
View Answer
Answer: c
Explanation: Strings cannot be modified.
5 - Question
5. What will be the output of the following Python code?
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>>>max("what are you")
a) error
b) u
c) t
d) y
View Answer
Answer: d
Explanation: Max returns the character with the highest ascii value.
6 - Question
6. Given a string example=”hello” what is the output of example.count(‘l’)?
a) 2
b) 1
c) None
d) 0
View Answer
Answer: a
Explanation: l occurs twice in hello.
7 - Question
7. What will be the output of the following Python code?
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>>>example = "helle"
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>>>example.find("e")
a) Error
b) -1
c) 1
d) 0
View Answer
Answer: c
Explanation: Returns lowest index.
8 - Question
8. What will be the output of the following Python code?
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>>>example = "helle"
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>>>example.rfind("e")
a) -1
b) 4
c) 3
d) 1
View Answer
8. What will be the output of the following Python code?
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>>>example = "helle"
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>>>example.rfind("e")
a) -1
b) 4
c) 3
d) 1
9 - Question
9. What will be the output of the following Python code?
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>>>example="helloworld"
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>>>example[::-1].startswith("d")
a) dlrowolleh
b) True
c) -1
d) None
View Answer
Answer: b
Explanation: Starts with checks if the given string starts with the parameter that is passed.
10 - Question
10. To concatenate two strings to a third what statements are applicable?
a) s3 = s1 . s2
b) s3 = s1.add(s2)
c) s3 = s1.__add__(s2)
d) s3 = s1 * s2
View Answer
Answer: c
Explanation: __add__ is another method that can be used for concatenation.