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  • Question
  • What action will correct patchy, faint, uneven or intermittent print on a dot matrix printer?


  • Options
  • A. Replacing the ribbon
  • B. Replacing the timing belt
  • C. Adjusting the paper feed tension
  • D. Adjusting the tractor feed tension
  • E. None of the above

  • Correct Answer
  • Replacing the ribbon 


  • Computer Hardware problems


    Search Results


    • 1. What is your first action when windows reports that your hard drive is developing bad sectors?

    • Options
    • A. replace the hard drive
    • B. run secclean from dos
    • C. run defrag on the hard drive
    • D. run scandisk with the "thorough" option
    • E. None of the above
    • Discuss
    • 2. Which of the following statements is true?

    • Options
    • A. Two SCSI devices connected to a computer can have the same ID if they are both hard drives.
    • B. Each SCSI device must have its own ID
    • C. All SCSI devices must have the same ID
    • D. SCSI ID's are irrelevant
    • E. None of the above
    • Discuss
    • 3. Which provides the fastest data access time?

    • Options
    • A. RAM
    • B. ROM
    • C. CD-ROM
    • D. Hard disk
    • E. Floppy disk
    • Discuss
    • 4. The buffers statement is found in what file?

    • Options
    • A. Config.sys
    • B. Autoexec.ncf
    • C. Autoexec.bat
    • D. Neb.cfg
    • E. None of the above
    • Discuss
    • 5. How many IRQs does a chain of USB devices require?

    • Options
    • A. 1
    • B. 2
    • C. 3
    • D. 4
    • E. None of the above
    • Discuss
    • 6. Dust in a computer actually increases the size of the magnetic fields inside it. This is not good, so you must occasionaiy dust, I trust. What's the best way to do this?

    • Options
    • A. reverse vacuum
    • B. any small vacuum device
    • C. blow real hard on the system board
    • D. use a lint-free cloth and wipe gently
    • E. non-static compressed air
    • Discuss
    • 7. One of the major components of a PC is the Central Processing Unit (CPU) which can be best described as:

    • Options
    • A. The device that sends the monitor signals telling it what to display
    • B. The area that regulates all of the system power usage
    • C. The area where all the of the Basic input/output routines are stored
    • D. The area where all of the processing takes place
    • E. None of the above
    • Discuss
    • 8. A parity error usually indicates a problem with:

    • Options
    • A. memory
    • B. hard drive
    • C. hard drive controller
    • D. I/O controller
    • E. power supply
    • Discuss
    • 9. What is the size of the reserved memory area?

    • Options
    • A. 64 kb
    • B. 384 kb
    • C. 640 kb
    • D. 1024 kb
    • E. None of the above
    • Discuss
    • 10. What should you replace if the brightness or contrast adjustments were malfunctioning on a laptop?

    • Options
    • A. fuse
    • B. led display
    • C. adjustment switch
    • D. led display cable
    • E. None of the above
    • Discuss


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