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Syllabus

NEC Computer · Practice

Chapters & sets

1. Basic Electrical and Electronics

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 System

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. Concept of Computer Network and Network Security System

Basic Networking

Set 150 Set 253

Advanced Networking

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

6. Theory of Computation and Computer Graphics

Theory of Computation

Set 150 Set 250 Set 360

Computer Graphics

Set 150 Set 251 Set 350 Set 450 Set 550

7. Data Structures and Algorithm, Database System and Operating System

8. Software Engineering and Object-Oriented Analysis & Design

Mixed chapter MCQs

Set 150 Set 250 Set 350 Set 450 Set 550 Set 650 Set 750 Set 926

9. Artificial Intelligence and Neural Networks

Mixed chapter MCQs

Set 150 Set 317 Set 450 Set 550 Set 650 Set 750 Set 850 Set 932

10. Project Planning, Design and Implementation

Engineering Drawing

Set 150 Set 267

Engineering Economics

Set 168

Project Planning & Scheduling

Set 188

Project Mangement

Set 150

Engineering Professional Practice

Set 120

Engineering Regulatory Body

Set 130

Computer Graphics Set 1

50 questions

Question 1

Expansion of CRT is:

A.
Cathode Ray Tube
B.
Common Reflection Tube
C.
Computer Related Tube
D.
Common Reflection Tube

Question 2

50

The Operations of Most ______ Are Based on the Standard Cathode Ray Tubes.

A.
Scanner
B.
Printers
C.
Video monitors
D.
Card readers

Question 3

A Beam of Electrons Emitted by an Electron Gun is Also Called as ______.

A.
Electric rays
B.
Cathode rays
C.
Magnetic rays
D.
Infra-red rays

Question 4

Expansion of DDA is ______.

A.
Device Display Analyzer
B.
Digital Device Analyzer
C.
Digital Differential Analyzer
D.
Digital Display Analyzer

Question 5

Give a production grammar for the language

L = \{x \mid x \in \{a,b\}^{*},\ \text{the number of }a\text{'s in }x\text{ is a multiple of }3\}

.

A.
20 to 40
B.
30 to 60
C.
40 to 70
D.
20 to 50

Question 6

In Beam Penetration Method, ______ Layers of Phosphor Are Usually Used.

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

Question 7

In Beam Penetration Method, ______ and ______ Layers of Phosphor Are Usually Used.

A.
Red and green
B.
Yellow and green
C.
Blue and green
D.
Orange and green

Question 8

VDU is a ______ Device.

A.
Processing
B.
Input
C.
Peripheral
D.
Hardware

Question 9

The Operation of the Most Video Monitors is Based on the ______ CRT.

A.
Static
B.
Dynamic
C.
Standard
D.
Pervasive

Question 10

In Cathode Ray Tube, a Beam of Electrons is Emitted ______.

A.
From the base
B.
By an electron gun
C.
By a focusing system
D.
By deflection plates

Question 11

The Negatively Charged Electrons Inside the CRT Are Then Accelerated Towards the ______.

A.
Phosphor coating
B.
Base
C.
Electron gun
D.
Electron beam object

Question 12

The Magnetic Field Produced by Each Pair of Coils Results in ______ Deflection Force.

A.
Transverse
B.
Magnetic
C.
Slopping
D.
Repulsive

Question 13

A Major Difference Between Phosphors is Their ______.

A.
Permanent state
B.
Feebleness
C.
Persistence
D.
Magnetic deflection

Question 14

The Diagonal Screen Dimension of a Personal Computer System is Given as the Sizes Varying from About ______ Inches or More.

A.
12 to 21
B.
27 to 12
C.
0 to 27
D.
4 to 12

Question 15

Picture Definition is Stored in ______ Buffer Area in Memory.

A.
Frame
B.
Outer
C.
Refresh
D.
Restore

Question 16

The Rate at Which the Picture is Redrawn on the Screen is Called ______ Rate.

A.
Buffer
B.
Refresh
C.
Draw
D.
Delete

Question 17

A System with 24 Bits Per Pixel & a Screen Resolution of 1024 by 1024 Requires ______ Mega Byte of Storage for Frame Buffer.

A.
3
B.
4
C.
5
D.
6

Question 18

In a Black and White System ______ Per Pixel is Needed to Control the Intensity of Screen Positions.

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

Question 19

In a High-Quality System ______ Bits Per Pixel is Needed to Control the Intensity of Screen Positions.

A.
8
B.
16
C.
24
D.
32

Question 20

On a Black and White System with One Bit Per Pixel, the Frame Buffer is ______.

A.
Light Emitted Display
B.
Light Emitting Diode
C.
Light Emitting Display
D.
Light Emit Diode

Question 21

For systems with multiple bits per pixel, the frame buffer is commonly called as ______.

A.
Pixmap.
B.
Pelmap
C.
Bitsmap.
D.
Bitmap.

Question 22

Refresh rate near to

60

frames per second is an effective technique for avoiding flicker.

A.
$60$ .
B.
$45$ .
C.
$30$ .
D.
$15$ .

Question 23

Random scan monitors draw a picture ______ at a time.

A.
One pixel.
B.
One line.
C.
Two pixel.
D.
Two line.

Question 24

In raster scan system the ______ beam is swept across screen.

A.
Electron.
B.
Magnetic
C.
Electro
D.
Electro thermal

Question 25

In raster scan system the electron beam is swept across screen from ______.

A.
Right to left.
B.
Bottom to top.
C.
Top to bottom.
D.
Side to side.

Question 26

A CRT monitor displays color picture by using a combination of phosphor that emits light of ______ color.

A.
Same.
B.
Different.
C.
Many.
D.
Only one.

Question 27

Let

L

be a language recognized by a finite automaton. The reverse language

L' = \{\omega \mid \omega\text{ is the reverse of }v,\ v \in L\}

is:

A.
Monitor.
B.
Random scan system.
C.
Beam penetration method.
D.
Color tv.

Question 28

In flat panel display the emissive displays are devices that convert electric energy into ______.

A.
Obscurity
B.
Light energy.
C.
Stimulating energy.
D.
Non emitting energy.

Question 29

In liquid crystal display the flat panel device is referred to as a LCD.

A.
Matrix.
B.
Passive.
C.
Active.
D.
Submissive.

Question 30

The refresh buffer also called a ______ buffer.

A.
Frame.
B.
Element.
C.
Resolution.
D.
Bitmap.

Question 31

Each screen point is referred to as a ______.

A.
Point.
B.
Pixel.
C.
Position.
D.
Element.

Question 32

Refreshing on raster-scan displays is carried out at the rate of

60

to

80

______ per second.

A.
Points.
B.
Pixels
C.
Positions
D.
Frames.

Question 33

The raster-scan systems, each frame are displayed in two passes using an ______ procedure.

A.
Interlaced refresh.
B.
Providing.
C.
Refresh.
D.
Vector-displays.

Question 34

The magnetic field produced by each pair of coils results in a ______.

A.
Transverse deflection force.
B.
Electron beam.
C.
Generic field
D.
Horizontal deflection.

Question 35

A property of video monitors is ______.

A.
Length.
B.
Centimeter
C.
Direction
D.
Aspect ratio.

Question 36

Intensity of the electron beam is controlled by setting voltage levels on the ______.

A.
Control panel.
B.
Connector pins.
C.
Electron gun.
D.
Control grid.

Question 37

The ______ emits a small spot of light at each position contacted by the electron beam.

A.
Electron gun.
B.
Phosphor
C.
Control grid.
D.
Cathode.

Question 38

The maximum number of points that can be displayed without overlap on a CRT is referred to as its ______.

A.
Persistence.
B.
Resolution
C.
Non persistence.
D.
Distribution.

Question 39

Sterio scopic viewing is also a part in ______.

A.
Virtual reality system.
B.
Actual reality system.
C.
Essential system
D.
Implicit system.

Question 40

The output devices in a graphics system is a ______.

A.
Video monitor.
B.
Cathode ray tube.
C.
Video display devices.
D.
Deflection CRT.

Question 41

The focusing system in a CRT is needed to force the electron beam to converge into a ______ as it strikes the phosphor.

A.
Large spot.
B.
Small spot.
C.
Double spot
D.
Spot.

Question 42

A shadow-mask CRT has ______ phosphor color dots at each pixel position.

A.
Five.
B.
Four
C.
Three
D.
Two.

Question 43

The ______ shadow-mask method is commonly used in color CRT systems.

A.
Delta-delta.
B.
Beta-beta.
C.
Delta-beta.
D.
Alpha-alpha.

Question 44

Color CRTs in graphics systems are designed as ______.

A.
CRT monitors.
B.
DVST monitors.
C.
RGB monitors.
D.
Color monitors.

Question 45

DVST stands for ______.

A.
Device View Storage Tube.
B.
Direct View Storage Tube.
C.
Direct View Space Tube.
D.
Device View Space Tube.

Question 46

The emissive displays are device that convert electrical energy into ______.

A.
Light.
B.
Image
C.
Pixel
D.
Colors

Question 47

The plasma is also called as ______ displays.

A.
Image.
B.
Glass
C.
Gas-discharge.
D.
Glass-discharge

Question 48

A beam of slow electrons excites only the outer ______ layer.

A.
Blue.
B.
Green
C.
White
D.
Red

Question 49

A beam of very fast electrons penetrates through the red layer and excites the inner ______ layer.

A.
Blue.
B.
Green
C.
White
D.
Red

Question 50

LED stands for ______.

A.
Light Emitted Display.
B.
Light Emitting Diode.
C.
Light Emitting Display.
D.
Light Emit Diode.

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