Nucleus Placement Paper -: Python Questions With Answers

Nucleus Previous Years Solved Sample Placement Papers

1. Which of the following is true for variable names in Python?
   

   A. Underscore and ampersand are the only two special characters allowed

   B. Unlimited length Answer: Option B

   C. All private members must have leading and trailing underscores

   D. None of the mentioned

2. Solution: Variable names in Python can be of unlimited length.
3. What are the values of the following Python expressions?
   2**(3**2)
   (2**3)**2
   2**3**2
   

   A. 512, 64, 512 Answer: Option A

   B. 512, 512, 512

   C. 64, 512, 64

   D. 64, 64, 64

4. Solution: - Expression 1: 2**(3**2) = 2**9 = 512. - Expression 2: (2**3)**2 = 8**2 = 64. - Expression 3: 2**3**2 is evaluated as 2**(3**2) due to the right-to-left associativity of the ** operator, resulting in 512.
5. Which of the following is the truncation division operator in Python?
   

   A. |

   B. // Answer: Option B

   C. /

   D. %

6. Solution: The // operator performs truncation division by discarding the decimal part of the quotient. For example: 20//3 = 6.
7. What will be the output of the following Python code?
   l = [1, 0, 2, 0, 'hello', '', []]
list(filter(bool, l))
   

   A. [1, 0, 2, ‘hello’, ”, []]

   B. Error

   C. [1, 2, ‘hello’] Answer: Option C

   D. [1, 0, 2, 0, ‘hello’, ”, []]

8. Solution: The filter function filters out all elements of the list `l` that evaluate to `False` (e.g., 0, empty strings, empty lists). The result is [1, 2, ‘hello’].
9. Which of the following functions is a built-in function in Python?
   

   A. factorial()

   B. print() Answer: Option B

   C. seed()

   D. sqrt()

10. Solution: The `print` function is a built-in Python function. Functions like `factorial` and `sqrt` are part of the `math` module, while `seed` is part of the `random` module.
11. Which of the following is the use of id() function in Python?
    

    A. Every object doesn’t have a unique id

    B. Id returns the identity of the object Answer: Option B

    C. All of the mentioned

    D. None of the mentioned

12. Solution: The `id()` function returns the unique identity of an object in Python.
13. The following Python program can work with ____ parameters.
    def f(x):
def f1(*args, **kwargs):
print("Sanfoundry")
return x(*args, **kwargs)
return f1

    

    A. any number of Answer: Option A

    B. 0

    C. 1

    D. 2

14. Solution: The decorator function shown can accept any number of arguments using *args and **kwargs.