Understanding Operational Procedures

Question 1

An ESD strap is a device that is specially designed to bleed electrical charges away safely. It uses a ___ to bleed the charge away slowly.

Answer 1

1 megohm resistor

Question 2

The number of ___ in a power source represents its potential to do work.

Answer 2

volts

Question 3

volts don’t do anything by themselves. Current ___ is the force behind the work done by electricity.

Answer 3

(amperage, or amps)

Question 4

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

Answer 4

discharge

high-voltage probe.

Question 5

Do not use an ____ when discharging the monitor; doing so can lead to a fatal electric shock.

Answer 5

ESD strap

Question 6

Working with LCD monitors or any device with a fluorescent or LCD backlight presents a unique safety challenge. These types of devices require an ___ which provides the high-voltage, high-frequency energy needed to power the backlight.

Answer 6

inverter,

Question 7

The ____ is a small circuit board installed behind the LCD panel that takes power and converts (inverts) it for the backlight.

Answer 7

inverter

DC

Question 8

If it’s an _____ printer, do not try to blow in the ink cartridge to clear a clogged opening—that is, unless you like the taste of ink.

Answer 8

inkjet

Question 9

Some parts of a laser printer (such as the ____) will be damaged if you touch them.

Answer 9

EP cartridge

Question 10

___ happens when two objects of dissimilar charge come into contact with one another.

Answer 10

ESD

Question 11

For an antistatic wrist strap to work properly, the computer must be ____.

Answer 11

plugged in but turned off.

Question 12

Never wear an ESD strap if you’re working inside a ____. If you wear one while working on the inside of these components, you increase the chance of getting a lethal shock.

Answer 12

monitor or inside a power supply.

Question 13

Another preventive measure that you can take is to maintain the relative humidity at around ____ percent.

Answer 13

50

Question 14

____ is an unwanted disturbance caused by electromagnetic radiation generated by another source.

Answer 14

EMI

Question 15

Common sizes for Phillips-head screws are ___

Answer 15

000, 00, 0, 1, 2, and 3.

Question 16

When dealing with Torx screws, the two most common sizes are ___ & ___.

Answer 16

T-10 and T-15

Question 17

It is estimated that more than ___ percent of all of the lead (a poisonous substance) in landfills today comes from consumer electronics components.

Answer 17

25

Question 18

Power sags without a complete loss, called a ___, are also very damaging to electrical components but oftentimes go unnoticed.

Answer 18

brownout

Question 19

What is the purpose of using soap and water as a cleaning tool?

Answer 19

Cleaning external computer and monitor cases.

Question 20

What is the purpose of using Demineralized water as a cleaning tool?

Answer 20

Cleaning keyboards or other devices that have contact points that are not metal.

Question 21

What is the purpose of using Denatured Isopropyl Alcohol

Answer 21

Cleaning metal contacts, such as those on expansion cards.

Question 22

There are five types of batteries most commonly associated with computers and handheld electronic devices. Name all 5.

Answer 22

alkaline, nickel cadmium (NiCd), nickel metal hydride (NiMH), lithium ion (Li-ion), and button cell.

Question 23

___ is a popular format for rechargeable batteries.

Answer 23

Nickel cadmium

Question 24

Laptop batteries are commonly made with ____

Answer 24

NiMH and lithium ion.

Nickel metal hydride (NiMH) and lithium ion (Li-ion)

Question 25

These batteries are named so because they look like a button.

Answer 25

Button Cell

Question 26

This battery is commonly used in calculators and watches as well as portable computers. They often contain mercury and silver (and are environmental hazards due to the mercury) and need to be recycled.

Answer 26

Button Cell

Question 27

CRT monitors contain high amounts of ___.

Answer 27

lead

Question 28

____ is software that provides a free trial, with the expectation that you’ll pay for it if you like it and decide to keep it.

Answer 28

Shareware

Question 29

____ software is more than free: not only is the application free, but the source code (code used by programmers) is also shared to encourage others to contribute to the future development and improvement of the application.

Answer 29

Open-source

Question 30

___ is software that is completely free.

Answer 30

Freeware

Question 31

This license allows the software to be installed on many PCs but used concurrently by a smaller number.

Answer 31

Concurrent

Question 32

This is commercial software that you’re allowed to install on more than one computer.

Answer 32

Multiuser

Question 33

These are enterprise licenses, which permit an organization to install the application on an agreed-upon number of PCs.

Answer 33

Corporate, Campus, or Site

Question 34

Which class of fire extinguisher is recommended for use in a wood and paper fire?

Answer 34

Class A