LAB PROCEDURE AND TOOLS-TOOLS

Question 1

Classification of Hard ware tools:

Answer 1

1. General
2. ESD
3. Hand
4. Cleaning

Question 2

ESD tools

Function and examples

Answer 2

Antistatic wrist strap-ground yourself on unpainted parts/computer chassis before
Antistatic mats-prevents accumulation of static electricity on the hardware and technician

Question 3

Examples of Hand tools and their functions

Answer 3

1. Multimeter-AC/DC Voltage, I &electrical characteristics
2. Powersupply tester
3. Cable tester
4. Loopback plug- Performs the loopback diagnostic test for data transmission

Question 4

What problems can dirt and dust cause

Answer 4

1. Problems with physical operation eg of fans and buttons

2. Dust can act as insulator on electrical components

Question 5

How should you clean the following:

a) Computer cases and monitors
b) Liquid Crystal Display screens
c) CRT screens

Answer 5

a)Mild cleaning solution and a lint free cloth
b)Specially designed cleaners- No harsh chemicals
c)soft, clean, lint-free, damp cloth to wipe- no distilled water
Clean dusty compartments with a can of compressed air-no electrostatic build up

Question 6

Explain some negative environmental impacts the bad use of computers have on the environment and some possible solutions

Answer 6

1. Improper disposal- heavy metals leak and pollute the environment; recycling
2. Excessive usage- constant energy consumption leads to resource depletion; controlled usage eg the Internet of Things that monitors and controls usage of computers