Welcome to the Constructors and Destructors MCQs Page

Dive deep into the fascinating world of Constructors and Destructors with our comprehensive set of Multiple-Choice Questions (MCQs). This page is dedicated to exploring the fundamental concepts and intricacies of Constructors and Destructors, a crucial aspect of Object Oriented Programming. In this section, you will encounter a diverse range of MCQs that cover various aspects of Constructors and Destructors, 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 Object Oriented Programming.

Check out the MCQs below to embark on an enriching journey through Constructors and Destructors. Test your knowledge, expand your horizons, and solidify your grasp on this vital area of Object Oriented Programming.

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

Constructors and Destructors MCQs | Page 9 of 9

Explore more Topics under Object Oriented Programming

01

OOPs Concept and Features

02

Objects and Classes in OOPs

03

Access Specifiers

04

Class Members

05

Member Functions

06

Inheritance and its Types

07

Exception Handling

08

Objects and Pointers

09

Memory Allocation and Variable Scope

10

Overloading

11

Inbuilt Classes

Q81.

Destructors can be ________

Abstract type

Virtual

Void

Any type depending on situation

Discuss

Answer: (b).Virtual

Q82.

Global destructors execute in ___________ order after main function is terminated

Sequential

Random

Reverse

Depending on priority

Discuss

Answer: (c).Reverse

Q83.

When is it advised to have user defined destructor?

When class contains some pointer to memory allocated in class

When a class contains static variables

When a class contains static functions

When a class is inheriting another class only

Discuss

Answer: (a).When class contains some pointer to memory allocated in class

Q84.

Which among the following is correct for destructors concept?

Destructors can be overloaded

Destructors can have only one parameter at maximum

Destructors are always called after object goes out of scope

There can be only one destructor in a class

Discuss

Answer: (d).There can be only one destructor in a class

Q85.

Which class destructor will be called first, when following code go out of scope?

class A{  };
class B{  };
class C: public B{  };
A a;
B b;
C c;

~A()

~B()

~C()

~B() and ~C()

Discuss

Answer: (c).~C()

Q86.

When an object is passed to a function, its copy is made in the function and then:

The destructor of the copy is called when function is returned

The destructor is never called in this case

The destructor is called but it is always implicit

The destructor must be user defined

Discuss

Answer: (a).The destructor of the copy is called when function is returned

Q87.

What happens when an object is passed by reference?

Destructor is not called

Destructor is called at end of function

Destructor is called when function is out of scope

Destructor is called when called explicitly

Discuss

Answer: (a).Destructor is not called

Page 9 of 9

Welcome to the Constructors and Destructors MCQs Page

Constructors and Destructors MCQs | Page 9 of 9

Explore more Topics under Object Oriented Programming

OOPs Concept and Features

Objects and Classes in OOPs

Access Specifiers

Class Members

Member Functions

Inheritance and its Types

Exception Handling

Objects and Pointers

Memory Allocation and Variable Scope

Overloading

Inbuilt Classes

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