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Q1. The DC voltage on most circuit boards is:
(A) -12 volts
(B) 0 volts
(C) +5 volts
(D) +12 volts
Answer: (C) +5 volts
Q2. IDE cables have how many pins?
Answer: (B) 40
Q3. The following process determines the amount of memory present, the date/ time, and which communications ports and display adapters are installed in a microcomputer?
(A) Start-up utility test
(B) Power on Self Test
(C) Power up boot process
(D) Power on start up process
Answer: (B) Power on Self Test
Q4. Suppose that the power lamp in on, but the printer will not print. What can you do to correct the problem?
(A) Make sure the printer is on line
(B) Replace the AC line fuse
(C) Turn the printer on and off
(D) Replace the ribbon
Answer: (A) Make sure the printer is on line
Q5. An IRQ allow interface cards to:
(A) Interrupt the CPU to request service
(B) Pass data to the CPU to be processed
(C) Pass data from one card to another
(D) Pass data to the computer’s memory
Answer: (A) Interrupt the CPU to request service
Q6. When not in use, it is very important to keep 5 1/4 diskettes in _.
(A) Their protective sleeves
(B) In a plastic bag
(C) On a shelf in an upright position
(D) In the floppy drive
Answer: (A) Their protective sleeves
Q7. Resistance is measured:
(A) In parallel
(B) In series
(C) After breaking the circuit
(D) After checking voltage
Answer: (C) After breaking the circuit
Q8. What is the file extension used by WIN95 to back up registry file when windows starts?
Answer: (B) .dao
Q9. What should he used to extinguish a computer fire?
(A) Fire hose
(B) Class a extinguisher
(C) Class c extinguisher
(D) Silver foam water
Answer: (C) Class c extinguisher
Q10. What voltage does a 586 system use?
(A) +12 volts
(B) + 5 volts
(C) + 8 volts
(D) +3.3 volts
Answer: (B) + 5 volts
Q11. What should you replace if the brightness or contrast adjustments were malfunctioning on a laptop?
(B) Led display
(C) Adjustment switch
(D) Led display cable
Answer: (B) Led display
Q12. With a dot matrix printer, light then dark print is most commonly caused by:
(A) Erratic paper advancement
(B) Erratic ribbon advancement
(C) Misaligned print head
(D) Overheating print head
Answer: (B) Erratic ribbon advancement
Q13. What can you use to ensure power is not interrupted, resulting in corrupted data?
(B) Proper grounding
(C) Surge protector
(D) Sag protector
Answer: (A) UPS
Q14. An anti static strap uses a small __ to make sure you do not become the least path of resistance to the ground?
Answer: (D) Resistor
Q15. The POST routine, which counts system board RAM first, is stored in:
(C) ROM BIOS
Answer: (C) ROM BIOS
Computer Hardware MCQ – All Set
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