Chapter 1 Occupational Health and Safety

1.List possible causes of injury in an information technology environment.

The possible causes of injury in an information technology environment

are as follow:

1.Repetitive strain injury(RSI)

2.Incorrect Posture.

3.Dirty and dusty working environment with chemicals

4.Dark working room.

2. How should heavy objects be handled using safe working practices?

Heavy objects be handled using safe working practices because first of all

the user have to be safe and than only we can keep the heavy object safe

by handling carefully while carrying or while doing works.

3 What is good posture?

Posture is the position in which you hold your body upright against gravity

while standing, sitting or lying down. Good posture involves training your

body to stand, walk, sit and lie in position where the least strain is placed

on supporting muscles and ligaments during movement.

4 Describe what makes a work area comfortably lit.

There are various factors that makes a work area comfortably lit.they are

as follows:

1.sound pollution free working room.

2.cool and calm room with low humidity.

3.working room equipped with document holders and static electricity

4.Air free room

5 How can humidity affect you?

Humidity can affect one with lots of things, like it may lead to eye

irritation ,headache or sometimes bleeding from the nose .

6 Describe a brief exercise regimen appropriate for your own work

situation.

A brief exercise regimen appropriate for my own work situation can be:

Rotating the neck and making it free

Raising hands to and fro to make sure that the blood circulation

is going smooth.

Moving hand and elbow joints

Moving wrist and fingers for a better flow of blood.

At least an hour break for rest.

Chapter 2 Environmental considerations in the care of equipment

1 What are some of the important adverse environmental

conditions for computer equipment?

The important adverse environmental conditions for computer

equipment are as follow:

1.Temperature-heat and cold and a variations in temperature.

2.Dust,light and direct sunlight.

3.air flow and humidity.

2 What are some of the physical constraints in the locating of

equipment?

The physical constraints in the locating of equipment are as

follow

Locate under ground utilities

Locate your septic tank and drainage field

Take note of drainage patterns

3 What is an uninterruptible power supply and how is it used?

Uninterruptible power supply is also called a battery back up

which is used to provides emergency power and for the system

to remain active so that computer can be shutdown manually

during power failure.

4 What is the difference between fuse and RCD?

The difference between fuse and RCD is as follow:

Fuse RCD

- is a type of over current

protection device

- is a residual current

devices

- is necessary part of

power distribution and

prevent fire.

- High level of personal

protection from electric

shocks.

5 Why would you want to connect line filter to a power line?

I want to connect line filter to a power line because it is used as

interpreter to flow the electric line between both power lines.

6 What storage requirements are associated with computer media?

The storage requirements that are associated with computer

media are as follow:

- Storage media should be kept in boxes which are safe

and far from direct sunlight and magnetic media.

- It should be kept in a box or cupboard which is fire proof

- It is better to keep a backup data in safe place far

away from real data.

Chapter 3 Maintenance practices

1 Why does equipment need to be maintained?

The equipment needs to be maintained because

- it help us to work properly and

- it help us to maintain smooth flow of operation with little

downtime

2 What is the purpose of a maintenance schedule?

The purpose of a maintenance schedule is:

- to keep the system properly so that it can be found easily

when needed.

- to know about the warranty, date of service period,history

of equipment used and cost of the devices.

3 Why should you be careful what chemicals are used on

equipment?

We should be careful which chemicals are used for equipment

because if it is cleaned useing wrong chemical than that

equipment may get damage or sometimes it may not work

properly. That’s why we have to put chemicals carefully and

gently.

4 What maintenance procedures are required for a mouse?

There are some ways to do these procedures likely

unplug the mouse from the computer if it is a corded

mouse

remove the cover from underneath the mouse, turning in

the direction

remove the roller ball from the mouse

keep small amount of chemical and clean the rubber ball

gently

remove the dust from the cloth

5 What maintenance procedures are required for a keyboard?

There are some ways to maintain the keyboards are as follow:

unplug the keyboard from computer

vacuums the entire keyboard, pressing the keys down to

allow greater air flow

follow the direction and spray compressed air

slightly dampen a lint free cloth

carefully wipe each key

6 What maintenance procedures are required for a computer?

There are some ways to maintain the computers are as follow:

switch off the computer and unplug all the cables

use a damp cloth

gently wipe over the outer casing of the box

dry the case with a soft, clean cloth

open the computer case

put on your antistatic wrist strap and place the alligator clip

on the chassis

use vacuum

use can of compressed air

wait for few minutes

lastly reassemble the box and plug the cables back in

Chapter 4 Problem diagnostics

1 Why should diagnostic functions be performed?

We should perform the diagnostic functions because

- it helps to find the problem easily as well as manually

- it will takes less time to fix the problem

- it will be simpler for the new user to solve the problem

2 When should you replace a faulty part?

We should replace a faulty part when it causes a problem in

equipment or the system malfunctions.

3 Why do software drivers need to be replaced?

We should replace the software drivers when there is no use

of one driver or the current driver does not work properly.

4. How does the device manager display faulty drivers?

Device manager displays faulty drivers when an yellow

exclamation question marks is seen in Device, when it is checked in a

device manager