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Variable Names And Operators MCQs

Practice Variable Names And Operators MCQs for competitive exams.

Variable Names And Operators MCQs

Practice questions from this topic.

What is the order of precedence in python? i) Parentheses ii) Exponential iii) Multiplication iv) Division v) Addition vi) Subtraction

  1. A. i, ii, iii, iv, v, vi
  2. B. ii, i, iii, iv, v, vi
  3. C. ii, i, iv, iii, v, vi
  4. D. i, ii, iii, iv, vi, v
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What is the result of the expression 5 // 2 ?

  1. A. 2.5
  2. B. 2
  3. C. 2.0
  4. D. 3
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What is the result of 10 // 3 ?

  1. A. 3
  2. B. 3.0
  3. C. 3.33
  4. D. 0
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Why are local variable names beginning with an underscore discouraged?

  1. A. they are used to indicate a private variables of a class
  2. B. they confuse the interpreter
  3. C. they are used to indicate global variables
  4. D. they slow down execution
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Which of the following cannot be a variable?

  1. A. __init__
  2. B. in
  3. C. it
  4. D. on
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What is the result of "hello" * 3 ?

  1. A. "hellohellohello"
  2. B. "hello3"
  3. C. "3hello"
  4. D. "hhheeellllllooo"
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Which one of the following has the same precedence level?

  1. A. Addition and Subtraction
  2. B. Multiplication, Division and Addition
  3. C. Multiplication, Division, Addition and Subtraction
  4. D. Addition and Multiplication
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Which of the following is a valid way to comment a single line in Python?

  1. A. comment
  2. B. / comment
  3. C.
  4. D. # comment
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What is the result of not (5 > 3) ?

  1. A. True
  2. B. False
  3. C. None
  4. D. Error
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Which of the following is invalid?

  1. A. _a = 1
  2. B. __a = 1
  3. C. __str__ = 1
  4. D. none of the mentioned
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What is the purpose of the == operator in Python?

  1. A. Assignment
  2. B. Comparison for equality
  3. C. Exponentiation
  4. D. Concatenation
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What is the output of this expression, 3*1**3?

  1. A. 27
  2. B. 9
  3. C. 3
  4. D. 1
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