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Introduction to Lab Procedures and Tool Use

Chapter Description

This sample chapter from IT Essentials Companion Guide v6, 6th Edition, covers basic safety practices for the workplace, hardware and software tools, and the disposal of hazardous materials. Safety guidelines help protect individuals from accidents and injury. They also help to protect equipment from damage. Some of these guidelines are designed to protect the environment from contamination caused by improperly discarded materials.

Check Your Understanding

You can find the answers to these questions in the appendix, “Answers to ‘Check Your Understanding’ Questions.”

  1. What is an accepted method for cleaning computer components?

    1. Using ammonia to clean the LCD screen

    2. Using glass cleaner on a soft cloth to clean the outside of the mouse

    3. Using a lint-free cloth to remove dust inside the computer case

    4. Using rubbing alcohol to clean component contacts

  2. A technician accidentally spills a cleaning solution on the floor of the workshop. Where would the technician find instructions on how to properly clean up and dispose of the product?

    1. The safety data sheet

    2. The insurance policy of the company

    3. The local hazardous materials team

    4. The regulations provided by the local occupational health and safety administration

  3. Which tool can be used to take resistance and voltage measurements?

    1. Loopback plug

    2. Cable tester

    3. Power supply tester

    4. Multimeter

  4. Which tool would be used to create a partition on a hard drive?

    1. Format

    2. SFC

    3. Disk Management

    4. Defrag

    5. Chkdsk

  5. Which statement describes the term ESD?

    1. It is a type of interference caused by electrical motors.

    2. It is a device that supplies a constant level of electrical power to a computer.

    3. It is a measurement of the current flowing though electrical devices.

    4. It is the sudden discharge of static electricity that can adversely affect a component.

  6. Which tool can protect computer components from the effects of ESD?

    1. SPS

    2. Surge suppressor

    3. Antistatic wrist strap

    4. UPS

  7. Which type of fastener is loosened and tightened with a hex driver?

    1. Six-sided bolt

    2. Torx bolt

    3. Slotted screw

    4. Cross head screw

  8. What safety hazard might occur if a partially filled aerosol can is exposed to excessive heat?

    1. Lead poisoning

    2. Explosion

    3. Lethal voltage potential

    4. Breathing hazard

  9. Which tool would be used to scan Windows critical system files and replace any corrupted files?

    1. Chkdsk

    2. Fdisk

    3. SFC

    4. Defrag

  10. What tool would be used to determine which network port attaches to a specific office jack?

    1. Loopback adapter

    2. Punch down tool

    3. Tone probe

    4. Crimper

  11. Which device can protect computer equipment from brownouts by providing a consistent quality of electrical power?

    1. SPS

    2. Surge suppressor

    3. UPS

    4. AC adapter

  12. A technician should keep a personal _____________where all steps taken to repair a computer problem are noted including any configuration changes made.

    1. Journal

    2. Toolkit

    3. Floppy disk

    4. Software list

  13. What would make it easier for a technician to troubleshoot a problem that has been previously solved by another technician?

    1. Online computer manual

    2. Centralized closed trouble tickets

    3. Personal troubleshooting journal

    4. Online forum of manufacturer

  14. Which two devices commonly affect wireless networks? (Choose two.)

    1. Microwaves

    2. External hard drives

    3. Cordless phones

    4. Incandescent light bulbs

    5. Blu-ray players

    6. Home theaters

  15. What are two safety hazards when dealing with laser printers? (Choose two.)

    1. High voltage

    2. Proprietary power bricks

    3. Unwieldy card cages

    4. Heavy metals

    5. Hot components

  16. What three guidelines should be followed to provide safe conditions when computer equipment is being repaired? (Choose three.)

    1. Do not open the power supply.

    2. Turn off the power to the printer and computer before beginning.

    3. If a screwdriver is unavailable, use a knife with a sharp point to loosen screws.

    4. Do not wear loose jewelry unless it is gold, because gold does not conduct electricity.

    5. Ensure that your ID badge is around your neck and visible.

    6. Have all of your extra parts, screws, meters, and tools beside the chassis ready for use.

    7. Bend your knees when lifting heavy objects.

  17. What is a proper directive for using a can of compressed air to clean a PC?

    1. Spray the CPU cooling fan with the compressed air to verify that the fan blade is spinning freely.

    2. Use a long, steady stream of air from the can.

    3. Do not use compressed air to clean a CPU fan.

    4. Do not spray the compressed air with the can upside down.

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