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Inheritance And Polymorphism In Ruby MCQs with Explanations

Practice high-yield Programming & Software Development MCQs on Inheritance And Polymorphism In Ruby with worked academic solutions for FPSC, PPSC, NTS, NITB, PTS.

Questions
31
Difficulty Level
Exam-Level
Target Exams
FPSC, PPSC, NTS...
Estimated Time
38 mins
Exam-Level FPSC PPSC NTS NITB PTS
Verified for Commission Syllabus • Oct 14, 2026
31

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Question 1 of 31
★ FPSC ★ PPSC

What does inheritance allow in OOP?

Question 2 of 31
★ FPSC ★ PPSC

What is polymorphism in OOP?

Question 3 of 31
★ FPSC ★ PPSC

What is the purpose of the super keyword in Ruby OOP?

Question 4 of 31
★ FPSC ★ PPSC

What is the main principle behind object-oriented programming?

Question 5 of 31
★ FPSC ★ PPSC

Which concept in OOP promotes reusability and reduces redundancy in code?

Question 6 of 31
★ FPSC ★ PPSC

What is the purpose of abstraction in OOP?

Question 7 of 31
★ FPSC ★ PPSC

What does the term "class" refer to in OOP?

Question 8 of 31
★ FPSC ★ PPSC

What is the significance of the initialize method in Ruby classes?

Question 9 of 31
★ FPSC ★ PPSC

What does polymorphism allow in OOP?

Question 10 of 31
★ FPSC ★ PPSC

What is the difference between attr_reader, attr_writer, and attr_accessor in Ruby?

Question 11 of 31
★ FPSC ★ PPSC

What is the main advantage of using OOP principles in programming?

Question 12 of 31
★ FPSC ★ PPSC

What is the purpose of the include keyword in Ruby classes?

Question 13 of 31
★ FPSC ★ PPSC

What does the term "object" refer to in OOP?

Question 14 of 31
★ FPSC ★ PPSC

What is the purpose of inheritance in OOP?

Question 15 of 31
★ FPSC ★ PPSC

Which OOP principle emphasizes the hiding of implementation details and showing only necessary features?

Question 16 of 31
★ FPSC ★ PPSC

Which concept in OOP allows objects to exhibit multiple behaviors based on their types or class?

Question 17 of 31
★ FPSC ★ PPSC

Which OOP principle promotes reusability and reduces redundancy in code?

Question 18 of 31
★ FPSC ★ PPSC

What does the attr_accessor method do in Ruby OOP?

Question 19 of 31
★ FPSC ★ PPSC

What is the purpose of the self keyword in Ruby?

Question 20 of 31
★ FPSC ★ PPSC

What is the significance of the attr_writer method in Ruby classes?

Question 21 of 31
★ FPSC ★ PPSC

What does the term "inheritance" mean in Object-Oriented Programming?

Question 22 of 31
★ FPSC ★ PPSC

Which concept in Object-Oriented Programming allows objects of different classes to be treated as objects of a common superclass?

Question 23 of 31
★ FPSC ★ PPSC

What is the primary purpose of a constructor in a Ruby class?

Question 24 of 31
★ FPSC ★ PPSC

In Ruby, which keyword is used to define a private method?

Question 25 of 31
★ FPSC ★ PPSC

What does the term "polymorphism" refer to in Object-Oriented Programming?

Question 26 of 31
★ FPSC ★ PPSC

What is the purpose of the extend keyword in Ruby?

Question 27 of 31
★ FPSC ★ PPSC

What is the main purpose of using abstraction in Object-Oriented Programming?

Question 28 of 31
★ FPSC ★ PPSC

What is the significance of using the super keyword in a Ruby class?

Question 29 of 31
★ FPSC ★ PPSC

Which of the following statements best describes the purpose of the attr_accessor method in Ruby classes?

Question 30 of 31
★ FPSC ★ PPSC

What is the main advantage of using Object-Oriented Programming (OOP) principles?

Question 31 of 31
★ FPSC ★ PPSC

What does the term "abstraction" mean in Object-Oriented Programming?

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In competitive commission exams (FPSC, PPSC, KPPSC, SPSC, CSS, PMS), questions are frequently phrased with distractor options designed to catch rote learners. Whenever you answer an MCQ, read the Detailed Academic Explanation and Conceptual Anchor to understand why the remaining options are incorrect.

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