Explore topic-wise MCQs in Power Electronics.

This section includes 335 Mcqs, each offering curated multiple-choice questions to sharpen your Power Electronics knowledge and support exam preparation. Choose a topic below to get started.

151.

A peripheral which is used to accept data and send it to processing unit is called its

A. input devices
B. output devices
C. data devices
D. processing device
Answer» B. output devices
152.

Measurement of how well data can be represented on the screen is classified as

A. resolution
B. measuring device
C. representing quality
D. presentation of data
Answer» B. measuring device
153.

Transferring of data onto some other useful medium such as printer is called

A. screen dump
B. dump cursor
C. screenshot
D. screensaver
Answer» C. screenshot
154.

Display technology that uses gas between two glass sheets is classified as

A. less emitting diodes
B. low emission displays
C. light-emitting diodes
D. plasma displays
Answer» E.
155.

Drum Printers are said to be

A. Character printers
B. Code printers
C. Ribbon printers
D. Line printers
Answer» E.
156.

Fastest impact printer is

A. dot matrix printer
B. line printer
C. daisy wheel printer
D. drum printer
Answer» C. daisy wheel printer
157.

Computer system which uses drum plotter are

A. mainframe computer
B. mini computer
C. Both a and b
D. super computer
Answer» D. super computer
158.

Movement and selection of pen in computer flatbed plotter is controlled by

A. microprocessor
B. CPU
C. software
D. operating system
Answer» B. CPU
159.

Computer chain printer consist of a chain of

A. lines
B. words
C. characters
D. pages
Answer» D. pages
160.

Marker on the computer screen which is used to show current position of user is called

A. colored marker
B. cursor
C. position checker
D. screen contents
Answer» C. position checker
161.

Input devices includes

A. mouse, keyboard, monitor
B. mouse, keyboard, printer
C. mouse, keyboard, plotter
D. mouse, keyboard, scanner
Answer» E.
162.

Large rectangular microfilm sheet that typically consists 30 to 300 pages is called

A. microfiche
B. mega fiche
C. input medium
D. plotting medium
Answer» B. mega fiche
163.

Type of plotter in which the paper is held stationary and paper is held by underneath section is classified as

A. drum plotter
B. flat bed plotter
C. desk jet plotter
D. ink jet plotter
Answer» C. desk jet plotter
164.

Set of identical forms or documents is called

A. preprinted stationery
B. output stationery
C. analogue stationery
D. digital stationery
Answer» B. output stationery
165.

Characters and images are formed as a pattern of dots in type of printers known to be

A. Dot-Matrix printer
B. Flatbed printer
C. Inkjet printer
D. Drum printer
Answer» B. Flatbed printer
166.

Types of digital plotter includes

A. flat bed plotter
B. drum plotter
C. ink-jet plotter
D. both a and b
Answer» E.
167.

On a monochrome screen, each pixel needs

A. one bit of storage
B. five bits of storage
C. eight bits of storage
D. ten bits of storage
Answer» B. five bits of storage
168.

Dot-Matrix printers are considered to be slow printers with speed ranging between

A. 10-400 characters per second
B. 20-500 characters per second
C. 30-600 characters per second
D. 40-800 characters per second
Answer» D. 40-800 characters per second
169.

Small drops of ink is sprayed on paper, to print characters, in type of printers known to be

A. Drum printer
B. Dot-Matrix printer
C. Flatbed printer
D. Inkjet printer
Answer» E.
170.

Laser printer mechanism is consists of

A. laser light
B. roller
C. toner
D. all of these
Answer» E.
171.

In computer dot matrix, daisy wheel, ink jet and laser are types of

A. scanner
B. plotter
C. printer
D. typewriter
Answer» D. typewriter
172.

Device which is used to produce hard copy of computer output is known as

A. typewriter
B. printer
C. scanner
D. plotter
Answer» C. scanner
173.

Pins that are present in a computer dot matrix printer are

A. 9 or 24
B. 20 or 30
C. 8 or 13
D. 5 or 10
Answer» B. 20 or 30
174.

Computer line printer can prints lines at the rate of

A. 2000 lines per minute
B. 1000 lines per minute
C. 500 lines per minute
D. 3000 lines per minute
Answer» B. 1000 lines per minute
175.

Laser and ink jet printer are categorized as

A. high speed printers
B. non impact printers
C. Both a and b
D. impact printers
Answer» D. impact printers
176.

Computer line printer is faster than

A. daisy wheel printer
B. dot matrix printer
C. character printer
D. chain printer
Answer» D. chain printer
177.

Characters that are printed by character printer at a single default time is

A. 1 character
B. 10 characters
C. 50 characters
D. 6 characters
Answer» B. 10 characters
178.

Main difference between different types of computer printer depends upon

A. quality output
B. ability to print graphics
C. printing speed
D. all of these
Answer» E.
179.

Buttons present on the most conventional kind of mouse are

A. 2
B. 3
C. 4
D. 5
Answer» B. 3
180.

Types of plotter are

A. 2
B. 3
C. 4
D. 5
Answer» B. 3
181.

Computer device which is similar to mouse is

A. joystick
B. keyboard
C. trackball
D. barcode reader
Answer» D. barcode reader
182.

Monitor which is similar to the LCD monitor, but has a phosphorescent film between the layers, is

A. plasma display
B. electro luminescent display (ELD)
C. paper-white display
D. thin-film transistor
Answer» C. paper-white display
183.

Computer mouse is used for

A. drawing
B. creating lines
C. selecting options
D. all of these
Answer» E.
184.

Computer mouse is an essential part of

A. software
B. hardware
C. CPU
D. motherboard
Answer» C. CPU
185.

Computer mouse is also known as

A. clicking device
B. moving device
C. picking device
D. pointing device
Answer» E.
186.

Latest PC keyboards which use a circuit that senses the movement by change in its capacitance are called

A. capacitance keyboard
B. mechanical keyboard
C. QWERTY keyboard
D. dvorak keyboards
Answer» B. mechanical keyboard
187.

The most popular keyboard used today is the ______ key with a traditional QWERTY layout.

A. 101
B. 102
C. 103
D. 104
Answer» B. 102
188.

Holding the mouse button down while moving an object or text is known as …………

A. moving
B. dragging
C. dropping
D. highlighting
Answer» C. dropping
189.

Keyboard devices are typically classified as _________________ keyboards and special purpose keyboards.

A. Secondary
B. Primary
C. User-Defined
D. General-Purpose
Answer» E.
190.

Computer mouse get its name because

A. it squeaks when moved
B. it's cable looks like a tail
C. it has ears
D. it has eyes
Answer» C. it has ears
191.

A piece of hardware that is used to enter information into the computer by using keys …………..

A. keyboard
B. monitor
C. hard disk
D. icon
Answer» B. monitor
192.

Another popular _______________ arrangement, called Dvorak system, was designed for easy learning and use.

A. Key
B. Line
C. Group
D. Numeric
Answer» B. Line
193.

Which of the following peripheral devices displays information to a user ?

A. Monitor
B. Keyboard
C. Secondary storage devices
D. Secondary storage media
Answer» B. Keyboard
194.

________________ device allow input into the computer system by pressing a set of keys mounted on a board, connected to the computer system.

A. Mouse
B. Keyboard
C. Pen
D. Screen
Answer» C. Pen
195.

The I/O devices that provide a means of communication between the computer and the outside world are known as________________.

A. Printers
B. Peripheral Devices
C. Coaxial Cables
D. None of the above
Answer» C. Coaxial Cables
196.

_____________ are used to transfer user data and instructions to the computer.

A. Output devices
B. Processors
C. Input devices
D. Either a or c
Answer» D. Either a or c
197.

You must service the laser printer in your office. Which part of the printer should you avoid touching because it is hot?

A. fuser
B. printer head
C. primary corona
D. high-voltage power supply
Answer» B. printer head
198.

RTS stands for

A. ready to start
B. ready to switch
C. request to send
D. request to scan
Answer» D. request to scan
199.

You can add peripheral devices to your computer by inserting special-purpose circuit boards into these slots:

A. Bay slots
B. Port slots
C. Connector slots
D. Expansion slots
Answer» E.
200.

What is a common language that computers use to talk with one another on a network ?

A. client
B. adapter
C. protocol
D. operating systems
Answer» D. operating systems