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Welcome to the Classes,Objects and OOPS concepts MCQs Page

Dive deep into the fascinating world of Classes,Objects and OOPS concepts with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Classes,Objects and OOPS concepts, a crucial aspect of Python. In this section, you will encounter a diverse range of MCQs that cover various aspects of Classes,Objects and OOPS concepts, from the basic principles to advanced topics. Each question is thoughtfully crafted to challenge your knowledge and deepen your understanding of this critical subcategory within Python.

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Check out the MCQs below to embark on an enriching journey through Classes,Objects and OOPS concepts. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Python.

Note: Each MCQ comes with multiple answer choices. Select the most appropriate option and test your understanding of Classes,Objects and OOPS concepts. You can click on an option to test your knowledge before viewing the solution for a MCQ. Happy learning!

Classes,Objects and OOPS concepts MCQs | Page 4 of 13

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Q31.
All subclasses are a subtype in object-oriented programming. Is the statement true or false?
Discuss
Answer: (b).False
Q32.
What type of inheritance is illustrated in the following piece of code?
class A():
    pass
class B(A):
    pass
class C(B):
    pass
Discuss
Answer: (a).Multi-level inheritance
Discuss
Answer: (c).A single subclass derives from a single superclass
Q34.
What is the output of the following piece of code?
class A:
     def __init__(self):
         self.__i = 1
         self.j = 5
 
     def display(self):
         print(self.__i, self.j)
class B(A):
     def __init__(self):
         super().__init__()
         self.__i = 2
         self.j = 7  
c = B()
c.display()
Discuss
Answer: (c).1 7
Discuss
Answer: (c).The value of a private variable in the superclass can be changed in the subclass
Q36.
What is the output of the following piece of code?
class A:
    def __init__(self,x):
        self.x = x
    def count(self,x):
        self.x = self.x+1
class B(A):
    def __init__(self, y=0):
        A.__init__(self, 3)
        self.y = y
    def count(self):
        self.y += 1     
def main():
    obj = B()
    obj.count()
    print(obj.x, obj.y)
main()
Discuss
Answer: (b).3 1
Q37.
What is the output of the following piece of code when executed in the Python shell?
>>> class A:
               pass
>>> class B(A):
               pass
>>> obj=B()
>>> isinstance(obj,A)
Discuss
Answer: (a).True
Q38.
Method issubclass() checks if a class is a subclass of another class. True or False?
Discuss
Answer: (a).True
Discuss
Answer: (d).Allows for objects of different types and behaviour to be treated as the same general type
Discuss
Answer: (c).The program will have a more elegant design, and will be easier to maintain and update

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