Engineering Questions with Answers - Multiple Choice Questions
Python MCQs
1 - Question
1. Python supports the creation of anonymous functions at runtime, using a construct called __________
a) lambda
b) pi
c) anonymous
d) none of the mentioned
View Answer
Answer: a
Explanation: Python supports the creation of anonymous functions (i.e. functions that are not bound to a name) at runtime, using a construct called lambda. Lambda functions are restricted to a single expression. They can be used wherever normal functions can be used.
2 - Question
2. What will be the output of the following Python code?
-
y = 6
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z = lambda x: x * y
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print z(8)
a) 48
b) 14
c) 64
d) None of the mentioned
View Answer
Answer: a
Explanation: The lambda keyword creates an anonymous function. The x is a parameter, that is passed to the lambda function. The parameter is followed by a colon character. The code next to the colon is the expression that is executed, when the lambda function is called. The lambda function is assigned to the z variable.
The lambda function is executed. The number 8 is passed to the anonymous function and it returns 48 as the result. Note that z is not a name for this function. It is only a variable to which the anonymous function was assigned.
3 - Question
3. What will be the output of the following Python code?
-
lamb = lambda x: x ** 3
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print(lamb(5))
a) 15
b) 555
c) 125
d) None of the mentioned
View Answer
Answer: c
Explanation: None.
4 - Question
4. Does Lambda contains return statements?
a) True
b) False
View Answer
Answer: b
Explanation: lambda definition does not include a return statement. it always contains an expression which is returned. Also note that we can put a lambda definition anywhere a function is expected. We don’t have to assign it to a variable at all.
5 - Question
5. Lambda is a statement.
a) True
b) False
View Answer
Answer: b
Explanation: lambda is an anonymous function in Python. Hence this statement is false.
6 - Question
6. Lambda contains block of statements.
a) True
b) False
View Answer
Answer: b
Explanation: None.
7 - Question
7. What will be the output of the following Python code?
-
def f(x, y, z): return x + y + z
-
f(2, 30, 400)
a) 432
b) 24000
c) 430
d) No output
View Answer
Answer: a
Explanation: None.
8 - Question
8. What will be the output of the following Python code?
-
def writer():
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title = 'Sir'
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name = (lambda x:title + ' ' + x)
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return name -
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who = writer()
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who('Arthur')
a) Arthur Sir
b) Sir Arthur
c) Arthur
d) None of the mentioned
View Answer
Answer: b
Explanation: None.
9 - Question
9. What will be the output of the following Python code?
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L = [lambda x: x ** 2,
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lambda x: x ** 3,
-
lambda x: x ** 4]
-
-
for f in L:
-
print(f(3))
a)
27 81 343
b)
6 9 12
c)
9 27 81
d) None of the mentioned
View Answer
Answer: c
Explanation: None.
10 - Question
10. What will be the output of the following Python code?
-
min = (lambda x, y: x if x < y else y)
-
min(101*99, 102*98)
a) 9997
b) 9999
c) 9996
d) None of the mentioned
View Answer
Answer: c
Explanation: None.