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
What is focused attention?
The skill of focusing one’s attention upon a single source and avoid distraction
What is perception?
Organization and interpretation of sensory data in order to make it meaningful ,discarding non relevant data
Process of assembling sensations into a useable mental representation of the world
What is decision making?
Alternative courses of action based on information,knowledge,prior experience,expectations ,content,goals
Also described as thinking,problem solving and judgement
What is memory?
The ability to act consistently and to learn new things
Considered to be the storage and retention of info,experiences and knowledge as well as ability to retrieve this information
How many types of memory are there?what are they?
Ultra short term memory
Short term memory
Long term memory
What is social loafing?
Work less hard on a task when they believe others are working at
Maslow’s hierarchy of needs
Physiological needs Safety needs Love and belongingness Esteem needs Cognitive needs Aesthetic needs Self actualization
What is peer pressure?
Actual or perceived pressure which an individual may feel ,to conform to what he believes that his peers expect
What is conformity?
The tendency to allow ones’s opinion ,attitudes,actions and even perceptions to be affected by prevailing opinions,attitudes and perceptions
What is organizational culture?
“The way we do things here”
It is a group or company norm
Important elements of team working
Communication
Cooperation
Coordination
Mutual support
What is stress?
Defined as force,that when applied to a system,causes some significant modification of its form,where forces can be physical,physiological or due to social pressure
Signs of stress can be categorized into 5 categories. What are they?
Physiological symptoms Health effects Behavior symptoms Cognitive symptoms Subjective symptoms
Some ways to manage stress
Relaxation techniques
Careful relegation of sleep
A regime of regular exercise
Counseling
Five basic requirements of a hazards-communication program..
Msds Written program Inventory Labeling Training
Name the types of extinguisher
Foam extinguisher
Air-pressurized water (APW) extinguisher
Bromochlorodifloromethane (BCF) extinguisher
Carbon dioxide (C02) extinguisher
Dry Chemical extinguisher
Hazardous material are typically grouped into? A) Two categories B) five categories C) four categories D) three categories
D
Which of the following is not a class of a chemical agent? A) reactive B) abrasive C) corrosive D) flammable
B
Flammables are also known as A) fire B) heAt C) flame D) combustible
D
Container for the chemical agent needed to be A) fireproof B) grounded C) covered at all times D) made of good quality plastics
B
Strong acids are mostly found in a form of A) gas B) solid C) liquid D) vapor
C
Corrosive materials are materials that can react with metallic surfaces and cause A) lost of leg B) lost of finger C) itching of the skin D) burning of the skin
D
Flammable toxins & corrosive materials should be stored A) separately B) in close contact C) in the same container D) together in a cool place
A
Toxins are generally defined as any substance that can cause a/an A) fire B) illness C) pollution D) corrosion
B
Water reactive materials such as lithium reacts with water and form hydrogen gases that are very A) toxic B) abrasive C) explosive D) corrosion
C
Physical hazard are those to which the aviation maintenance technician is exposed to that are usually caused by the
A) physical condition of the technician or equipment
B) positioning of some type of equipment in the hanger
C) use of some type of equipment that can be controlled by the technician
D) use of some type of equipment not directly controllable by the technician
D
Biological hazards are living organism that may cause A) fire B) disease C) pollution D) explosion
B
FAA regulation requires that the transportation of biological hazardous materials must be A) fly in a special flight B) properly documented C) stored in a special container D) guarded by a a specialize personnel
B
The hazardous communication standard is established by A) FAA B) CAAS C) NASA D) OSHA
A
Msds is also know as A) material safety data sheets B) metal servicing data sheets C) manufacturer safety data sheets D) manufacturer standard data sheets
A
When using the hazardous materials, we must also be conscious of the hazards as well as A) selling them B) storing them C) buying them D) disposing them
D
Human factor is the science whose goals are to identify ,then describe ,predict and control the performance so as to
A) improve the flying hours of an aircraft
B) maximize the flying hours of an aircraft
C) improve the man hours relating to the aircraft
D) optimize the relationship in human-machine systems
D
What are designed to trap both latent and active failures in order to break the chain of events leading to incidents and accidents ? A) technician ideals B) manufacturer decisions C) safety measures and defenses D) management policies and ideals
C
A regulation ,policy , practice or procedure which ,if out in place , may break in link in the chain if events leading to maintenance error bring committed is known as A) safety net B ) protective statement C)management policies D) rules do the work section
A
According to human factor experts ,how many types of verbal communication are there? A) 2 B) 3 C)4 D)5
B
Communication is defined as the exchange of A)tool B) speech C) language D) information
D
Which one of the following is needed for a good communication? A) trust B) proper language C) good hand signal D) proper eye contact
B
Which one if the following is not the critical element that is essential for team work? A) common goal B) trust and respect C) common language D) effective communication
C
Complacency is an ever - present danger in many aviation maintenance works because of the A) High stresses B) repetitive nature C) long working hours D) complexity of the job
B
Psychologist have identified distraction as the number one cause of A) illness B) stresses C) forgetting D) complacency
C
The unwritten rules and behavior that the group practice is known as A) trust B) norms C) teamwork D) safety net
B
For combustion to take place , which of the following items must be present A) heat B) oxygen and heat C) oxygen and material D) oxygen heat and material
D
The most common type if tire is A) class a B) class b C) class c D) class d
A
Liquid fire cannot be put out by A) foam B) light water C) dry chemical D) carbon dioxide
B
Which type of fire extinguisher cannot be used for engine fire? A) water B) dry powder C) dry chemical D) carbon dioxide
B
Fatigue is the bodies normal reaction to a physical or mental stress in A) night shift B) normal shift C) short duration D) prolonged duration
D
What is the warning sign that a person has stress?
A) sweaty or cold hands
B) do not experience severe headaches
C) do not have anxiety ,poor concentration and memory loss
D) no breathing difficulties are experienced during the night or day
A
What is the safety net for pressure ?
A) be yourself
B) stop and access the situation
C) try not to speak up as to avoid any misunderstanding
D) not require looking into the matter and continue to work
B
There are three types of verbal communication we use , namely the verbal type , tone of the voice and A) experiment B) reading type C) body language D) study case studies
C
How do we tackle stress problems? A) to be alone B) remain silent C) think rationally and positively D) try not to do cany exercise as it will stress your body
C
Combustion may be defined as a chemical reaction or a series of reaction accompanied by evolution of A) air and light B) air and heat C) heat and light D) hear and metal
C
In the classification of fires , there are basically A) 3 types of fire B) 4types of fire C) 5 types of fire D) 6 types of fire
B
How many types of extinguisher are there? A) 2 B) 3 C) 4 D ) 5
D
The lowering down of heat of fire by dousing it with water until it's temperature falls below the ignition temperature of the fire is know as A) cooling B) starving C) controlling D) smothering
D
Class d fires are known as A) solid fires B) liquid fires C) metal fires D) electrical fires
C
Class c fires are also known as A) solid fires B) liquid fires C) metal fires D) electrical fires
D
There are 3 types of flammable liquids we use in aviation,namely the aircraft fuel,lubricants and A) paints B) thinners C) kerosene D) hydraulic oil
D
Oil and grease must not be used on oxygen equipment because If the rusk if A) gasing B) leaking C) explosion D) contamination
C
What is not permitted in the vicinity of aircraft ,hangers ,fuel ,installations ,or explosives areas? A) eating B) running C) drinking D) smoking
D
Which one if the following classified as class 3 HAZMAT? A) explosive B) toxic gas C) flammable solid D) flammable liquid
D
After removing the aircraft pipe,what should we do with fuel that flows out from the pipe ? A) leave it B) install sign again C) inform your superior D) use rag or mop to wipe it immediately
D
Which one of the following is not an effect of noise hazard ?
A) physiological effect
B) fatigue during work
C) physiological effect
D) interference with speech communications
B
When one of the following can be used as insulation material when breaking free casualty from an electric shock ? A) pots and pans B) metal cabinet C) wooden box D) paper
C
Which one of the following should be worn when entering an x ray room for x ray operation? A) cap B) gloves C) safety shoes D) radiation monitor badge
D
Which one of the following PPE should we use when doing welding? A) earmuff B) safety helmet only C) safety clear lens glasses D) safety helmet with dark lens glasses
D
Which one of the following burns is caused by sun rays? A) dry burn B) cold burn C) chemical burn D) radiation burn
A
An msds is decided into 9 sections. What does section III mean ? A) physical data B) reactivity data C) product identification D) fire and explosion data
A
What is the color of the fire hazard diamond? A) blue B) red C) withe D) yellow
B
When refueling an aircraft ,the technician must ensure that
A) fuel truck’s rank is full
B) fuel truck is grounded
C) fuel is transfer to tank safely
D) both aircraft and fuel truck are grounded
D
What is FOD? A) foreign object debris B) foreign object damage C) foreigner object debris D) foreigner object damage
A
Which one of the following is true when handling corrosive material?
A) add water to acid to dilute
B) only eye protection us needed
C) acids and bases must be store together
D) storage container must be of corrosive resistant
D
OSHA's hazardous communication standard label is typically divided into how many sections? A) 1 B)2 C) 3 D) 4
D
Define Murphy’s law
A) if there’s a right way to do it ,that’s the way,it will be done
B) if there’s a right way to do it ,there’s no way it will be done
C) if there’s a wrong way to do it ,there’s no way it will be done
D) if there’s a wrong way to do it ,that’s the way , it will be done
D
What are three factors that can cause combustion to take place? A) heat,fuel and oxygen B) argon ,heat and oxygen C) fuel ,oxygen and nitrogen D) carbon dioxide ,heat and fuel
A
Which one of the following fire extinguisher is use to extinguish class a fire? A) foam B) water C) dry powder D) carbon dioxide
B
Which are the three method of fire extinction? A) starvation ,cooling,watering B) starvation , smothering ,cooling C) starvation , smothering , heating D) smothering ,cooling , feeding
C
Which one of the following fire extinguishers is suitable fir fighting class a,b and c fire? A) soda B) water C) dry powder D) carbon dioxide
D
How many types of fire classification are there? A) 4 B) 5 C) 6 D) 7
A
Removing combustible material from the neighborhood of the fire is an example of which method of fire extinction ? A) cooling B) heating C) starvation D) smothering
C
Paint is classified under which type of fire? A) class a B) class b C) class c D) class d
B
Dry chemical fire extinguishers are capable if controlling A) class a & b fire B) class a & d fire C) class b & c fire D) class c & d fire
C
Which one of the following type if fire extinguisher is in black color? A) foam type B) water filled type C) dry chemical type D) carbon dioxide type
D
Which type if fire extinguishers is most appropriate for class d fires ? A) foam type B) water filled type C) dry chemical type D) carbon dioxide type
C
Which if the following is not suitable for petroleum fire? A) water B) dry powder C) dry chemical D) carbon dioxide
A
Which one of the following describes the cooling method of fire extinction?
A) removing the fuel from the fire
B) reducing the supply of oxygen to the fuel
C) removing both fuel and heat from from the fire
D) lower heat temperature below the ignition temperature if fuel
D
What does ms stand for ? A) maintenance standard B) machine specifications C) maintenance system D) military specification
D
Which type of gloves is suitable for handling oil grease covered components or materials ? A) cotton B) rubber C) leather D) asbestos
B
What is the PPE we should use when dealing with corrosive /chemical acid? A) safety harness B) cotton gloves C) leather palm gloves D) chemical resistant gloves
D
Which is the most hazardous environment when working in the workshop?
A) a crowded workshop
B) an oily workshop floor
C) that there are too many machines
D) that there are too many fitting benches
B
When we deal with any removing of avionics parts, which is the most important step that we must take to observe ?
A) make sure nobody is around you when you are working with the avionics
B) Make sure you are away 5 meter from the aircraft
C) make sure you switch off the power
D) make sure you are alone
C
When working with radiation especially when checking aircraft part fir crack using x ray method make sure
A) the inspector wears a bump cap
B) the inspector wears radiation watch
C) the inspector wear chef apron
D) the inspector wears a radiation monitor badge
D
When a technician encounters minor burn on his skin, what is the most appropriate treatment ?
A) apply alcohol
B) apply toothpaste
C) apply medical cream only
D) apply medical cream and bandage the affected burn area
D
An msds is divided into 9 parts and section 1 describe as ? A) fire and explosive data B) hazardous ingredients C) product indentification D) reactivity data
C
When troubleshooting electrical wire on the aircraft , one must ensure that the hands are A)oily B)bare C) wetted D) protected by safety gloves
D
Which one if the following precautions is not a safety measure when handling gas cylinder welding ?
A) close the cylinder valve fully
B) tighten air regulator in the cylinder after wielding
C) move the gas cylinder by rolling it with edge of the base touching the floor
D) hand tight the gauges while opening cylinder valve
C
Solid fire is classified under A) class a B) class b C) class c D) class d
A
Which of the following fire extinguishers is most suitable fir fighting class b fire ? A) oxygen B) water C) dry powder D) carbon dioxide
D