Discussion
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- Question
The DC voltage on most circuit boards is:
Options- A. -12 volts
- B. 0 volts
- C. +5 volts
- D. +12 volts
- E. None of the above
- Correct Answer
- +5 volts
- 1. In laser technology, what happens during the transfer stage?
Options- A. Residual toner is transferred to the waste receptacle
- B. The laser transfers the image from the drum to the paper.
- C. The image is transferred from the drum to the paper
- D. A negative charge is transferred to the surface of the drum
- E. None of the above Discuss
- 2. What is the i/o address for com2?
Options- A. 2vb
- B. 2f8
- C. 8f8
- D. 330 Discuss
- 3. During preventative maintenance on a dot matrix printer, do NOT lubricate:
Options- A. Platen assembly
- B. Print head pulley
- C. Print head pins
- D. Paper advance gear bushings
- E. None of the above Discuss
- 4. In the Binary numbering system, a (1) represents a jumper being shorted and a (0) represents a jumper being open. On a three-bit jumper block on a SCSI drive, how would an ID of logical 3 be set?
Options- A. 100
- B. 010
- C. 011
- D. . 101
- E. None of the above Discuss
- 5. A dialog box with a bomb appears on a Macintosh screen. What type of problem has occurred?
Options- A. A RAM problem
- B. A software problem
- C. A ROM problem
- D. An ADB problem
- E. None of the above Discuss
- 6. If the voltage on pin 1 of the power supply is not in the range of _____ volts, the PC will not boot.
Options- A. 10 - 20
- B. 1 - 5
- C. 50 - 110
- D. 15 - 25
- E. 2.5 - 5 Discuss
- 7. What IRQ is used for COM 2?
Options- A. 4
- B. 3
- C. 2
- D. 1
- E. None of the above Discuss
- 8. Which component must be vacuumed or replaced during preventative maintenance on a laser printer?
Options- A. Scanning mirror
- B. Toner cartridge
- C. Ozone filter
- D. All of the above
- E. None of the above Discuss
- 9. A PC with a 486DX2 processor runs internally at 50Mhz. What speed would its external logic be running?
Options- A. l0Mhz
- B. 25Mhz
- C. 50Mhz
- D. 100 Mhz
- E. None of the above Discuss
- 10. What are the most likely conditions for ESD?
Options- A. Hot and dry
- B. Hot and wet
- C. Cold and dry
- D. Cold and wet
- E. None of the above Discuss
Computer Hardware problems
Search Results
Correct Answer: The image is transferred from the drum to the paper
Correct Answer: 2f8
Correct Answer: Print head pins
Correct Answer: 011
Correct Answer: A software problem
Correct Answer: 2.5 - 5
Correct Answer: 3
Correct Answer: Ozone filter
Correct Answer: 25Mhz
Correct Answer: Hot and wet
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