Latest notices:

NEC licence exam preparation, made clearer.Practice questions, syllabus guides, and timed mocks for Nepal engineers.New study resources are added regularly.

Login Sign up

Syllabus

NEC Electronics · Practice

Chapters & sets

1. Basic Electrical and Electronics Engineering

Basic Electrical

Set 1106

Basic Electronics

Set 171 Set 233

2. Digital Logic and Microprocessor

Digital Logic

Set 150 Set 250 Set 350 Set 450 Set 550 Set 650 Set 749 Set 851 Set 950 Set 1050 Set 1150 Set 1232

Microprocessor

Set 150 Set 250 Set 350 Set 445 Set 550 Set 650 Set 720 Set 850 Set 969

3. Programming Language and Its Applications

Mixed chapter MCQs

Set 150 Set 249 Set 349 Set 451 Set 540

4. Computer Organization and Embedded Systems

Mixed chapter MCQs

Set 150 Set 249 Set 350 Set 450 Set 550 Set 650 Set 750 Set 849 Set 950 Set 1050 Set 1150

5. Computer Networks and Network Security

Basic Networking

Set 150 Set 253

Advanced Networking

Set 150 Set 250 Set 350 Set 450 Set 550 Set 655

10. Project Planning, Design and Implementation

Mixed chapter MCQs Set 2

49 questions

Question 1

Which of the following statements is correct?

A.
Structure elements can be initialized at the time of declaration
B.
Structure members cannot be initialized at the time of declaration
C.
Only integer members of a structure can be initialized at the time of declaration
D.
None of the Above

Question 2

User-defined data types are also called:

A.
Aggregate
B.
Derived
C.
Secondary
D.
All of the Above

Question 3

Functions used to read or write a file in Text Mode:

A.
fprintf(), fscanf()
B.
fread(), fwrite()
C.
fprintf(), fscanf()
D.
read(), write()

Question 4

Correct syntax for opening a file:

A.
FILE \*fopen(const char \*filename, const char \*mode);
B.
FILE \*fopen(const char filename, const char mode);
C.
FILE \*open(const \*filename, const char \*mode);
D.
All of the Above

Question 5

What is the function of the mode ‘w+’?

A.
Write and Open for both reading and writing
B.
Open for both reading and writing
C.
Open for writing
D.
Open for both reading and appending in binary mode

Question 6

What is the function of the mode ‘a+’?

A.
Write and Open for both reading and writing
B.
Open for both reading and writing
C.
Open for reading and appending
D.
Open for both reading and appending in binary mode

Question 7

If the mode includes 'b' after the initial letter, what does it indicate?

A.
Text file
B.
Binary file
C.
Big file
D.
None of the Above

Question 8

What does tmpfile() return when it could not create the file?

A.
Stream
B.
NULL
C.
Both Stream and NULL
D.
No result

Question 9

fwrite() can be used only with files that are opened in binary mode:

A.
True
B.
False
C.
Depends on the Situation
D.
All of the Above

Question 10

What are the functions that help to randomly access the file?

A.
fseek()
B.
ftell()
C.
rewind()
D.
All of the Above

Question 11

Data stored in a file can be accessed in:

A.
Sequential and Random
B.
Semi-Sequential and Random
C.
Random only
D.
All of the Above

Question 12

The causes of function overloading are:

A.
Type Conversion
B.
Function with Default Arguments
C.
Function with pass by reference
D.
All of the Above

Question 13

Which of the following is true?

A.
Existing operators can only be overloaded, but new operators cannot be overloaded
B.
The overloaded operator contains at least one operand of the user-defined data type
C.
We cannot use a friend function to overload certain operators
D.
All of the Above

Question 14

Which of the following operators cannot be overloaded?

A.
Scope operator (::) and Sizeof
B.
Member selector(.) and member pointer selector(\*)
C.
Ternary operator(?:)
D.
All of the Above

Question 15

Which of the following can be overloaded?

A.
Methods
B.
Constructors
C.
Indexed Properties
D.
All of the Above

Question 16

The function whose definition can be substituted at a place where its function call is made is:

A.
Inline Function
B.
Offline Function
C.
Friend Function
D.
Normal Function

Question 17

How many ways are there to invoke a function in C++?

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

Question 18

At what time does the inline function get expanded?

A.
Compile time
B.
Run time
C.
At the end
D.
Depends on the program

Question 19

In a Function Prototype, where should default parameters appear?

A.
Leftmost side
B.
Rightmost side
C.
In the middle
D.
Anywhere

Question 20

Which one of the following is correct?

A.
Only one parameter of a function can be a default parameter
B.
A minimum of one parameter of a function must be a default parameter
C.
All the parameters of a function can be default parameters
D.
No parameter of a function can be default

Question 21

Execution of the program starts from:

A.
Main
B.
Void
C.
User Defined
D.
Loop

Question 22

In the program, if user and default values are given, the program will take:

A.
Default Value
B.
User Value
C.
NULL Value
D.
Own Value

Question 23

The default return type of a function is:

A.
INT
B.
FLOAT
C.
CHAR
D.
VOID

Question 24

Which of the following is correct?

A.
An object is a runtime entity and created at runtime
B.
An object is an entity that has state and behavior
C.
An object is an instance of a class
D.
All of the Above

Question 25

Which of the following entities can be connected by the dot operator?

A.
A class object and a member of that class
B.
A class object and a class
C.
A class member and a class object
D.
All of the Above

Question 26

Which of the following is also known as an instance of a class?

A.
Member Functions
B.
Class
C.
Object
D.
Member Variables

Question 27

How many objects can be created from an abstract class?

A.
0
B.
1
C.
2
D.
3

Question 28

We can overload:

A.
Operator
B.
Function
C.
Both A & B
D.
Object

Question 29

How many types of access specifiers are there?

A.
2
B.
3
C.
4
D.
5

Question 30

In a single class, which of the following can be used together?

A.
Private Only
B.
Public Only
C.
Protected Only
D.
All

Question 31

Which of the following can restrict class members from being inherited?

A.
Private Only
B.
Public Only
C.
Protected Only
D.
All

Question 32

Which access specifier is used for data members of a class?

A.
Private
B.
Default
C.
Protected
D.
Public

Question 33

Which access specifier should be used for member functions of a class?

A.
Private
B.
Default
C.
Protected
D.
Public

Question 34

In which access specifier can all the parent class members be inherited and accessed from outside the class?

A.
Private
B.
Default
C.
Protected
D.
Public

Question 35

Which access specifier should be used in a class where the instances can’t be created?

A.
Private default constructor
B.
All private constructors
C.
Public
D.
Protected

Question 36

hich of the following is the scope resolution operator?

A.
::
B.
:::
C.
&
D.
&&

Question 37

Which of the following is the address operator?

A.
@
B.
&
C.
\#
D.
%

Question 38

To become a pure object-oriented programming language, which features must be supported?

A.
Encapsulation
B.
Inheritance
C.
Polymorphism
D.
All of the Above

Question 39

The scope resolution operator is used to:

A.
Overload a function in inheritance
B.
Override a function in inheritance
C.
Both of the Above
D.
None of the Above

Question 40

The scope resolution operator is used for:

A.
To specify a particular class
B.
Provides a conceptual framework
C.
Addition
D.
All of the Above

Question 41

Which class allows declaring only one object of it?

A.
Abstract Class
B.
Singleton class
C.
Friend class
D.
All of the Above

Question 42

Which of the following is a member of a class?

A.
Static function
B.
Constant function
C.
Virtual function
D.
All of the Above

Question 43

The other name used for functions inside a class is:

A.
Own Functions
B.
Member Functions
C.
Inside Functions
D.
None of the Above

Question 44

Generally, how many types of member functions are there in C++?

A.
2
B.
3
C.
4
D.
5

Question 45

In the main function, how can a static member function be called?

A.
Using the Dot Operator
B.
Using the Arrow Operator
C.
Using the Dot or Arrow Operator
D.
Using the Dot, Arrow, or using the 'scope resolution operator with class name'

Question 46

Which of the following is correct?

A.
If no constructor is explicitly declared, the compiler automatically creates a default constructor with no data members (variables) or initialization
B.
A constructor is used in classes to initialize data members of the class to avoid errors/segmentation faults.
C.
A copy constructor is a constructor to initialize an object with the values of another object
D.
All of the Above

Question 47

A constructor is used to:

A.
Modify the data whenever required
B.
Destroy an object
C.
Initialize the data members of an object when it is created
D.
None of the Above

Question 48

What will happen if we forget to define a constructor inside a class?

A.
Error Occurs
B.
Segmentation faults
C.
The compiler provides a default constructor
D.
Destructor called

Question 49

How many types of constructors exist in C++?

A.
2
B.
3
C.
4
D.
5

Practice another set Take a test on this chapter →