Computer Hardware MCQ Questions and answers PDF download free. Objective type multiple choice Question Bank for competitive exams.
Computer Hardware MCQ Questions and Answers PDF
1. Processor, main memory (RAM), hard disk, CD/DVD drive, CMOS, BIOS chip, etc. are housed inside _____.
(a) input unit
(b) Central Processing Unit (CPU)
(c) output unit
(d) all of them
Ans. b
2. ______ contains slots for fixing/ connecting processor, main memory (RAM), hard disk, CD/DVD drive, CMOS, BIOS chip, etc.
(a) Mother board
(b) bread board
(c) key board
(d) dash board
Ans. a
3. A stylus used to provide input through CRT monitor is called _______.
(a) scanner
(b) digital tablet
(c) light pen
(d) printer
Ans. c
4. VDU is expanded as ______.
(a) Visual Display Unit
(b) Virtual Display Unit
(c) Visual Deception Unit
(d) Visual Display University
Ans. a
5. In computer monitors, CRT stands for _____.
(a) Cadmium Ray Tube
(b) Cathode Ray Tube
(c) Cathode Ray Twist
(d) Cathode Rim Tube
Ans. b
6. Cathode Ray Tube (CRT) monitor has ______ level of power consumption amongst monitors.
(a) highest
(b) lowest
(c) zero
(d) least
Ans. a
7. LCD is expanded as _____.
(a) Linear Crystal Display
(b) Liquid Crystal Dialog
(c) Liquid Crystal Display
(d) Liquid Canister Display
Ans. c
8. LED is expanded as _______.
(a) Linear Emitting Diode
(b) Light Emitting Diode
(c) Liquid Emitting Diode
(d) Light Emitting Display
Ans. b
9. The display of LCD monitor is ______ than that of LED monitor.
(a) lighter
(b) heavier
(c) brighter
(d) duller
Ans. d
10. Height to width ratio of a monitor screen is called ______.
(a) aspect ratio
(b) length ratio
(c) width ratio
(d) diagonal ratio
Ans. a
11. Generally, CRT monitors had aspect ratio of ______.
(a) 16:9
(b) 4:3
(c) 16:10
(d) 1:1
Ans. b
12. The type of printer which hits the paper to produce print is called _____.
(a) monitor
(b) scanner
(c) non-impact type printer
(d) impact type printer
Ans. d
13. The type of printer which does not hit the paper to produce print is called ______.
(a) monitor
(b) scanner
(c) non-impact type printer
(d) impact type printer
Ans. c
14. Dot matrix printer belongs to _______ category.
(a) monitor
(b) scanner
(c) non-impact type printer
(d) impact type printer
Ans. d
15. LASER printer, ink jet printer, thermal printer and plotter belong to ____ category.
(a) monitor
(b) scanner
(c) non-impact type printer
(d) impact type printer
Ans. c
16. Thermal printer uses ______ coated paper, which turns black when heat is applied.
(a) chromium
(b) BisPhenol
(c) nickel
(d) toner powder
Ans. b
17. The unit which splits power supply to various voltages required for their units of a computer is called _____ .
(a) transformer
(b) Switch Mode Power Supply (SMPS)
(c) transistor
(d) transducer
Ans. b
18. Full form for SMPS in computer is _____.
(a) Sync Mode Power Supply
(b) Switch Mode Power Supply
(c) Stake Mode Power Supply
(d) Switch Mode Power Socket
Ans. b
19. In a desktop computer, _____ produces radio frequency interference.
(a) SMPS
(b) Micro-Processor
(c) RAM
(d) Mouse
Ans. b
20. The opening provided in the front panel or rear panel of a CPU for connecting peripherals is called _____.
(a) socket
(b) pin
(c) port
(d) part
Ans. c
21. External dialup MODEM can be connected to a computer using ______ port.
(a) RS232/ serial
(b) PS/2
(c) VGA
(d) LPT
Ans. a
22. Old style (SIMPLEX) printer (like dot matrix printer) may be connected to a computer using _____ port.
(a) RS232/ serial
(b) PS/2
(c) VGA
(d) LPT
Ans. d
23. Modern (DUPLEX) printer (like LASER jet, inkjet printers) may be connected to a computer using ______ port.
(a) RS232/ serial
(b) USB
(c) PS/2
(d) VGA
Ans. b
24. Broadband connection may be connected through _____ port.
(a) RJ45/ Ethernet
(b) USB
(c) PS/2
(d) VGA
Ans. a
25. Printer, fax machine, scanner, web camera, external DVD writer, external hard disk, etc. can be connected to computer using ______ port.
(a) RJ45
(b) USB
(c) PS/2
(d) VGA
Ans. b
26. Joystick can be connected to computer using ______ port.
(a) 3.5mm jack
(b) RJ11
(c) RJ45
(d) Game
Ans. d
27. PS/2 stands for ______.
(a) Registered Jack 11
(b) Registered Jack 45
(c) Personal System 2
(d) Recommended Standard 232
Ans. c
28. RJ11 stands for _____.
(a) Registered Jack 11
(b) Registered Jack 45
(c) Personal System 2
(d) Recommended Standard 232
Ans. a
29. RJ45 stands for _____ .
(a) Registered Jack 11
(b) Registered Jack 45
(c) Personal System 2
(d) Recommended Standard 232
Ans. b
30. RS232 stands for _____.
(a) Registered Jack 11
(b) Registered Jack 45
(c) Personal System 2
(d) Recommended Standard 232
Ans. d
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