Computer Hardware problems
- 1. How many DMA channels are there in an AT class PC?
Options- A. 3
- B. 4
- C. 7
- D. 8
- E. None of the above Discuss
Correct Answer: 8
- 2. IDE cables have how many pins?
Options- A. 25
- B. 50
- C. 100
- D. 40
- E. 65 Discuss
Correct Answer: 40
- 3. A capacitor is measured in which of the following units?
Options- A. Volts
- B. Ohms
- C. Farads
- D. Resistance
- E. None of the above Discuss
Correct Answer: Farads
- 4. COM1 is typically represented by which of the following?
Options- A. 15 pin port
- B. 9 pin male port
- C. 9 pin female port
- D. 25 pin male port
- E. None of the above Discuss
Correct Answer: 9 pin male port
- 5. Resistance is measured in units of:
Options- A. ohms
- B. farads
- C. helids
- D. amperes
- E. volts Discuss
Correct Answer: ohms
- 6. ESD potential decreases with the use of:
Options- A. De-ionizing fans
- B. A wrist strap
- C. Rubber gloves with matching cap
- D. A static meter
- E. None of the above Discuss
Correct Answer: A wrist strap
- 7. What voltage does a 586 system use?
Options- A. +12 volts
- B. + 5 volts
- C. + 8 volts
- D. +3.3 volts
- E. None of the above Discuss
Correct Answer: + 5 volts
- 8. An important first step in troubleshooting which component in a laser printer is causing a jam is to:
Options- A. note where in the paper path the paper stops
- B. check all voltages
- C. look up error codes
- D. turn the printer off, then on again
- E. remove the jammed paper Discuss
Correct Answer: note where in the paper path the paper stops
- 9. A static jolt of as little of _____ volts can fry most any PC integrated circuit.
Options- A. 200
- B. 30
- C. 1000
- D. 200
- E. 500 Discuss
Correct Answer: 30
- 10. During the normal PC boot process, which of the following is active first?
Options- A. RAM BIOS
- B. CMOS
- C. ROM BIOS
- D. Hard disk information
- E. None of the above Discuss
Correct Answer: ROM BIOS
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