Chapter 11: Understanding Safety Procedures Flashcards Preview

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Flashcards in Chapter 11: Understanding Safety Procedures Deck (11)
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1
Q

Computers both ____ and _____ electricity

A

Use and Store

2
Q

Two elements of a workstation that should never be touched, what because the power they’re storing can kill you

A

CRT or LCD Monitors

Power Supplies

3
Q

Before opening a PC, always first _____

A

Ensure it’s turned off.

Leaving it plugged in is usually fine, and many times actually preferred because it grounds the equipment and can help prevent electrostatic discharge.

4
Q

You should turn off a computer whenever replacing parts, except when _____

A

You’re working with hot-swappable components

5
Q

If you have to open a monitor, you must first discharge the high-voltage charge on it by using a _____

A

high-voltage probe

6
Q

high-voltage probe

A

This probe has a very large needle, a gauge that indicates volts, and a wire with an alligator clip.

7
Q

How do you discharge a monitor with a high-voltage probe?

A

Attach the alligator clip to a ground (usually the round pin on the power cord). Slip the probe nee- dle underneath the high-voltage cup on the monitor. You will see the gauge spike to around 15,000 volts and slowly reduce to 0 (zero). When it reaches zero, you may remove the high- voltage probe and service the high-voltage components of the monitor.

8
Q

Safety requirements for printers

A

Do not turn toner upside down. It gets messy.

Don’t look into the laser of a laser printer

Don’t blow on the ink cartidge of an inkjet

Don’t burn yourslelf.

9
Q

Safety issues with keyboard / mice

A

You can trip on their cords

Spilling liquid on the keyboard can short it out.

10
Q

ESD

A

electrostatic discharge

11
Q
A