Human Factor Flashcards
How to handle and store flammables ?
Containers should be grounded
Stored only in approved containers
Store flammable toxic and corrosive toxic materials separately
What are flammables ?
Also known as combustible
Material that may be easily ignited
Categories of hazardous materials
Chemical agents
Physical hazards
Biological hazards
What is FACTOR
Flammables And Corrosive Toxic Or Reactive
What are corrosives ?
Materials that react with metallic surfaces or cause burning of skin
Information about corrosives
Strong acids usually come from liquid
Bases come in powdered form
What are carcinogens?
Type of toxins that may cause changes in the genetic makeup of human cell,resulting in cancer
How to handle corrosives?
Containers must be corrosive resistant
Eye and skin protection should be worn always
Flammable toxin and corrosive toxin materials must be stored separately
What are reactives?
Materials that react violently with other materials
What are toxins?
Substance that can cause illness or injury
Information about reactives
Water reactive materials,such as lithium,react with water and form hydrogen gases,which are very explosives.
Chloride bleach and ammonia forms high toxic chlorine gas
What is meant by the term “physical hazards”?
Maintenance technician exposed because of use of equipment not directly controllable by them
What is meant by the term “biological hazards”?
Living organisms that may cause illness or disease
How are biological hazards been transmitted?
In the form of air droplets or spores
Enter the body through contact with contaminated objects
What can be found in section 1 of msds?
- Product identification
- Manufacturer name,address & phone
- Chemical name
- Emergency number
What can be found in section II of the msds?
- Hazardous ingredients
- PEL
- TLVs
- TD
What is meant by the following?
- PEL: Personal exposure limits
- TLVs: Theshold limit values
- TD: Toxicity data
- STEL: Short term exposure limit
- TWA: Time weighted average
What is meant by the term “flash points”?
The lowest temperature at which a flammable liquid will give off enough vapor to burn
What can be found in section III of the msds?
- Physical data
- Boiling point
- Vapor pressure
- Specific gravity
- Evaporation rate
- Appearance and odor
What can be found in section v of the msds?
- Reactivity data
- stability data
- incompatibility
- hazardous decomposition product
- Hazardous polymerization
What can be found in section IV of the msds?
Fire and explosive data
- flash points
- lower & upper explosive limit (lel/uel)
- extinguishing agents
What can be found in section VI of the msds?
Health hazard information
- primary means of explosure
- threshold limits
- effect of over exposure
What can be found in section VII of the msds?
Spill,leak and disposal info
-information regarding containment,evacuation procedures and disposal
What can be found in section VIII of the msds?
Special protection
- ventilation
- respiratory equipment
- special clothing consideration
What can be found in section IX of the msds?
Special precautions
Know the diamond coding systems
- health hazard diamond is blue
- flammability hazard diamond is red
- reactivity hazard diamond is yellow
- specific hazard diamond is white
Name the type of burns
Dry burn Wet burn Cold burn Electrical burn Chemical burn Radiation burn
Examples of dry burn
Flames
Lighted cigarettes
Hot electrical equipment such as iron
Name example of wet burn
Steam
Hot water
Name examples of cold burns
Liquid oxygen
Liquid nitrogen
What is msds?
Material safety data sheet
Name examples of radiation burns
Sun rays
Light reflected from a bright surface
What is meant by combustion
A chemical reaction or a series of reaction accompanied by evolution of heat and light
What are 3 elements for combustion to take place?
Heat
Fuel
Oxygen
What is fuel?
Combustible solid or liquid which gives off vapors that will burn when the ignition temperature is raised
Information about heat
- for the fuel to ignite ,the heat must be strong and high in intensity
- burns after the solid or liquid vaporizes or decomposed by heat to produce a gas
What is flash point and ignition temperature?
Flash point
-the lowest temperature at which a substances gives off vapor or gases in a sufficient quantity to be ignited
Ignition temperature
-temperature at which fuel will ignite spontaneously without flame or other ignition sources
How many classes of fires are there?what are they?
Class A : solid fires
Class B : liquid fires
Class C : electrical fires
Class D : metal fires
How many methods are there to extinguisher a fire and what are they?
Starving
Smothering
Cooling
How can the method of starving be applied?
By removing combustible material from the neighborhood of the fire
By removing the fire from the neighborhood material
How can the method of smothering be applied?
By limiting the amount of oxygen to the fire,combustion will ceased
How can the method of cooling be applied?
Lowering down of heat by dousing it with water until it’s temperature all below the ignition temperature of the fire
What is SHEL?
S. SOFTWARE
H. HARDWARE
E. ENVIRONMENT
L. LIVEWARE
What is Murphy’s law?
If something can go wrong it will go wrong
Name the parts of the eye
Cornea
Iris and pupil
Lens
Retina
Function of the cornea
Focusing device
70-80% responsibility of focusing ability of eye
Also know as window
Function of the iris
Controls the amount of light that is allowed to enter the eye
Function of lens
Final focusing adjustment to place a sharp image onto the retina
Factors that can affect the visual acuity of the eye
Physical factors
Influence of ingested foreign substances
Environment factors
Name some visual problems/illness
Hypermetropia Myopia Cataracts Astigmatism Glaucoma Migraine
What is hypermetropia?
Caused by a shorter them normal eyeball
Image is formed behind the retina
Also known as long sighted
What is myopia?
Caused by a longer than normal eyeball
Image is formed in front of the retina
Also know as short sighted
What is cataracts?
Clouding of the lens usually associated with ageing
What is astigmatism?
Misshapen cornea causing objects to appear irregular shaped
What is glaucoma?
Build up in the pressure of the fluid within the eye which can cause damage to the optic nerve and even blindness
What is migraine?
Severe headache that can cause visual disturbance
Name the parts of the ear
Outer ear
Inner ear
Middle ear
Fucntion of outer ear
Directs sound down the auditory canal
Function of middle ear
Transmit vibrations from the eardrum to the inner ear
Protect the ear from sounds above 80db reducing the notice level up to 20db
Usually filled with air
Function of inner ear
Vibrations detected cause neural impulses transmitted to the brain
Filled with fluid
How many types of attention are there? What are they?
Selective
Divided
Sustained
Focused
What is selective attention?
Occurs when a person is monitoring several sources of input ,with greater attention being given to one or more sources which appear more important
What is decided attention?
Common in most work situations
People are required to do more than one thing at the same time
What is sustained attention?
Maintain attention and remain alert for over periods of time ,often on one task