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Flashcards in Hazards and Safety Deck (45)
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1

Fire what is it

Chemical reaction when material reacts with oxygen

2

Parts of the fire triangle

Fuel - combustible solid , liquid or gas
Oxygen - from the air 16% is needed for sustainability
Heat - to initially ignite the fire and to sustain it

3

How to extinguish

eliminate O2 or level of heat present

4

Flash point

lowest temperature at which a liquid gives of enough vapor to ignite. The lower the flash point the easier to ignite

5

Classes of Fire

A- D

6

How are class A fires fueled

By materials that leave a residue after burning like ash so wood, cardboard paper etc

7

How are class A fires eliminated and with what

Gone through cooling effect by h2O , foam, dry or wet chemicals

8

How are Class B fires started

flammable liquids and gasses like gasoline, paint thinner, acetylene

9

How are class B fires eliminated and with what

Remove the oxygen using foam, dry chemical and CO2

10

How are Class C fires started

through electrical wiring so computers and motors

11

How are class C fires eliminated and with what

Non conducting agent - never use water. CO2, Dry chemical powder

12

How are Class D fires started

Metals and compounds Magnesium, NA, Tit, Ph

13

How are class D fires eliminated and with what

dry chemical extinguishers specifically for combustible metals

14

How do you know if the fire extinguisher will work

The label shows you what class of fires it can be used on

15

How to use an extinguisher

P-pull the pin at the handle
A- Aim nozzle at base of fire
S- Squeeze lever slowly
s-Sweep from side to side

16

Why are fire drill conducted

- practice fire response training
-Reinforce fire safety and evaluate staff knowledge
-to ensure drill provide maximum benefit

17

Physical hazard examples

cryogenic fluid - liquid N
electrical equipment
glassware

18

Radiation Hazard examples

-external exposure (e ray, gamma rays)
-Internal exposure (absorption - alpha particles, inhalation, beta particles and gamma rays)
-radioactive spills and non ionization radiation (lasers, UV and Microwave)

19

ergonomic hazards

Improper furniture
-bone injuries
-excessive noise
-slips and falls

20

Reproductive hazards

fetoxicity from solvents, mercury, radiation, virus, and biological agents

21

Air quality hazards

temp, humidity, air flow, air quality

22

Chemical hazards examples

flammable liquids, gases
toxic fumes and gases
caustic solvents
carcinogenic or mutagenic solvents

23

psycho social hazard

stress, abuse, violence, conflict between coworkers

24

Thermal Burn and causes

burns from external heat sources that raise the temperature of the skin and tissues causing cell death or charring. Hot metals , steam, flame

25

Radiation burns and causes

Sun burn - UV lights or radiation xrays or gamma rays

26

Chemical burns

Bases, detergents, solvents in contact with skin

27

Electrical burns

from electrical current from Alternating current (AC) or direct current (DC)

28

How to prevent and give first aid for spills on skin

Prevent by wearing PPEs
First aid - remove contaminated PPE and run under cold h2o for 15 mins or until it stops hurting

29

How to prevent and give first aid for strong acid

Prevent - rubber apron and gloves
First aid - remove PPE and under colf h2o for 15 or until it stops hurting

30

How to prevent and give first aid for splashes in eye

Prevent - wear safety goggles or face shield
First aid - Go to eye wash station remove contacts if any and rinse for 15 mins and get medical attention