Computer Hardware MCQ of Computer Science SET-3 with Answers free PDF

We have provide here is the list of Computer Hardware MCQs for Computer Engineering preparation competitive exams. Each question has four options followed by the right answer.

MCQ Questions for Computer Hardware with Answers

Q1. Which hardware component controls serial port communications?

(i) ROM BIOS
(ii) CPU
(iii) DMA823
(iv) UART 16550

(iv) UART 16550

Q2. ESD potential decreases with the use of:

(i) De-ionizing fans
(ii) A wrist strap
(iii) Rubber gloves with matching cap
(iv) A static meter

(ii) A wrist strap

Q3. Which step should you perform first before discharging a CRT?

(i) Remove the CRT from its housing
(ii) Disconnect the CRT from the computer
(iii) Remove the video assembly
(iv) Turn power off before removing power source

(iv) Turn power off before removing power source

Q4. _____ help prevent power surges.

(i) Surge suppressor
(ii) Spike protector
(iii) UPS system
(iv) High-grade multi-meter

(i) Surge suppressor

Q5. In ROM BIOS, the acronym BIOS stands for:

(i) Basic Intuitive Output Set
(ii) Basic Input Organizational System
(iii) Basic Input Output System
(iv) Basic Industry Operating System

(iii) Basic Input Output System

Q6. Which REQUIRES an anti-static bag for transport?

(i) Monitor
(ii) Floppy disks
(iii) Power supply
(iv) I/O controller

(iv) I/O controller

Q7. What is the paper feeding technology most commonly associated with dot-matrix printers?

(i) sheet feed
(ii) tractor feed
(iii) friction feed
(iv) manual feed

(ii) tractor feed

Q8. What command is used to hand up a MODEM when using the “AT Answer Command set”?

(i) ATZ
(ii) ATD
(iii) ATR
(iv) ATH

(iv) ATH

Q9. A capacitor is measured in which of the following units?

(i) Volts
(ii) Ohms
(iii) Farads
(iv) Resistance

(iii) Farads

Q10. Which of the following items would require you to comply with EPA disposal guidelines?

(i) Keyboard
(ii) System board
(iii) Power supply
(iv) Battery

(iv) Battery

Q11. What’s the best way to protect your hard drive data?

(i) regular backups
(ii) periodically defrag it
(iii) run chkdsk at least once a week
(iv) run scandisk at least once a week

(i) regular backups

Q12. What is the result of adding an IP address to the DNS server search order

(i) It restricts browsing to that DNS server
(ii) It overrides the local systems IP address
(iii) It tells the DNS Server where the local system is located
(iv) It tells the local system where the DNS Server is located

(iv) It tells the local system where the DNS Server is located

Q13. What should he used to extinguish a computer fire?

(i) fire hose
(ii) class a extinguisher
(iii) class c extinguisher
(iv) silver foam water

(iii) class c extinguisher

Q14. COM1 is typically represented by which of the following?

(i) 15 pin port
(ii) 9 pin male port
(iii) 9 pin female port
(iv) 25 pin male port

(ii) 9 pin male port

Q15. What device protects against line deficiencies?

(i) Surge protector
(ii) UPS
(iii) Logic probe
(iv) Capacitor

(ii) UPS

Q16. What is the first thing you could do to check for damage to a printer after receiving it?

(i) Run MSD diagnostics
(ii) Attach it to a PC and print something
(iii) Check the cables
(iv) Unbox it and examine it for physical damage

(iv) Unbox it and examine it for physical damage

Q17. How would you allow device drivers and TSR’s to be loaded into Upper Memory Blocks ?

(i) DOS=High
(ii) devicehigh=
(iii) loadhigh=
(iv) DOS=UMB

(iv) DOS=UMB

Q18. How many devices can be used on a single SCSI bus? Keep in mind that the SCSI host adapter counts as a device.

(i) 1
(ii) 8
(iii) 20
(iv) 10

(ii) 8

Q19. When connecting a ribbon cable to a connector, how do you know which direction to plug it in?

(i) The red line in the cable goes to the highest pin number
(ii) The colored line in the cable goes to pin #1
(iii) It does not matter
(iv) The blue or red line in the cable goes away from the power connector

(ii) The colored line in the cable goes to pin #1

Q20. With a dot matrix printer, light then dark print is most commonly caused by:

(i) Erratic paper advancement
(ii) Erratic ribbon advancement
(iii) Misaligned print head
(iv) Overheating print head

(ii) Erratic ribbon advancement

We hope the given Computer Engineering MCQ Questions for Computer Hardware with Answers PDF Free Download will help you. If you have any queries regarding Computer Hardware MCQs Multiple Choice Questions with Answers, drop a comment below and we will get back to you soons.

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