NCATT AET EXAM QUESTIONS
WITH 100% CORRECT DETAILED
ANSWERS
Active Hearing Protection - Answer-• Active Noise Reduction (ANR) earmuffs, headsets,
and helmets containing electronic components that enhance communications
• These devices substantially improve intelligibility and comfort, which decreases fatigue
Allowable Daily Exposure - Answer-• OSHA has adopted a 90 dB (A) level limit within a
daily 8- hour exposure
Noise Protection Program - Answer-• Includes training in normal operation of
equipment, support such as periodic screening of employees and facilities, and
applicable emergency procedures
Noise - Answer-• Refers to a sound, especially one that is noticeably unpleasant and
very loud
Passive Hearing Protection - Answer-• Earplugs and earmuffs with low-level protection
Job Briefings - Answer-• Meetings with employees involved before they start each job
• A Job briefing covers the following subjects: Hazards associated with the job Work
procedures involved Special precautions Energy source controls PPE requirements
Electrical Protective Devices - Answer-• Protective electrical insulated gloves and
sleeves or other electrical protective equipment to be worn when employees are
exposed to electrical shock hazards while working on electrical equipment
Circuit Protection Devices - Answer-• Include fuses, current limiters, thermal protectors
(switches), and circuit breakers
Elimination/Termination of Circuit Power - Answer-• Specific procedural steps for
shutting down, isolating, blocking, and securing machines or equipment to control
hazardous energy sources
• Lockout/tagout devices are often used
• There are also procedures for the placement, removal, and transfer of these devices
Electrical Power Protection Program - Answer-• Includes training in normal operation of
equipment, job briefings, support of safety-related work practices, and applicable
emergency procedures
,ESD - Answer-• Electrostatic Discharge is the instantaneous discharge of static
electricity that has built up on one surface or point and is discharged to another surface
or point
ESD Control Program - Answer-• Grounded workstation surfaces and equipment
• Personnel grounding
• Handling precautions
• Protective packaging for ESD items when transporting or storage
Conductive Wrist Strap (Connected to Earth Ground) - Answer-• Worn by an individual
to keep a workstation free of static charges
MIL-STD-129 - Answer-• ESD caution standard (military) that includes procedures for
precautionary measures
ESD Protection Program - Answer-• Includes training in examples of ESD failures,
prevention, support of safety-related work practices, and applicable emergency
procedures
Microwave (MW) Energy / Radiation - Answer-• Microwave energy is one form of
electromagnetic energy that makes up the electromagnetic spectrum
• Microwave frequencies are normally used for satellite communication and radar
• These frequencies are also used for bonding composite sheets for the automotive and
aerospace industries
Microwave Protection Program - Answer-• Includes training in normal operation of
equipment, support such as periodic screening of employees and facilities, and
appropriate emergency procedures
Acetone - Answer-• Organic solvent of industrial and chemical significance
• Acetone is colorless, volatile, and extremely flammable
Adhesives - Answer-• Substances that adhere or bond two components, or items,
together
• Many adhesives contain flammable and toxic elements
Caustic Solutions - Answer-• Substances that can burn and destroy living tissues or soft
metals
• Caustic solutions are usually strong acids and/or bases
Cleaners - Answer-• Substances that may contain solvents, corrosives, or any number
of chemicals to clean an aircraft
Coatings - Answer-• Substances that function to protect surfaces
• Coatings contain pigments, paints, solvents, drying oils, and other additives
,Degreasers and Strippers - Answer-• Substances that clean commercial and industrial
parts • Many degreasers and strippers contain flammable and toxic elements
Hazardous Liquids - Answer-• Includes corrosives, ignitables, and reactives, as well as
chemicals used as solvents, cleaners, caustic solutions, degreasers, strippers,
adhesives, and coatings
Solvents - Answer-• Substance that dissolves another substance or substances to form
a solution
• Solvents are usually, but not always liquid
• Solvents can also be gases or solids
Methyl Ethyl Ketone (MEK) - Answer-• Solvent used in the surface coating industry and
in dewaxing of lubricating oils
• Methyl Ethyl Ketone may be used with other solvents such as acetone, ethyl acetate,
hexane, toluene, and alcohols
Explain first aid for electrical shock with reference to the following safety precautions: -
Answer-• TURN OFF THE POWER as quickly as possible • If unable to locate the
power switches, do not attempt to touch the victim. Touching the victim will pass the
current through anyone who touches the victim
• If electrical power cannot be removed, use a dry wooden pole, wooden broom, or dry
wooden chair to PUSH or ROLL the victim clear of the power source. Dry,
nonconducting objects made of cardboard, plastic, or wood are suitable to use to
remove the victim from the power source
• If clothing, belt, rope, or cord must be used, be careful to AVOID CONTACT WITH
THE VICTIM! Form the rescue device into a loop, and slip the loop over the foot, leg, or
arm of the victim (without touching the victim) to drag them away from the power source
• Once the victim is "free" of the power source, do not move them unless it is necessary
• Proper Steps to Take in Case of Need for First Aid—When someone needs first aid
after electrical shock, follow these steps: > Keep the victim lying down > Slightly elevate
their legs and feet > Cover the victim with a blanket to maintain body heat > Do not
move the victim unless it is necessary > Seek qualified medical aid, but try not to leave
the victim alone > If the victim needs water, give them a few sips of water at first. Then,
gradually increase water intake unless nausea is present
First Aid and CPR: - Answer-American Heart Association Guide for CPR, October 18,
2010:
• Call 911 or ask someone else to do so
• Try to get the person to respond; if he doesn't, roll the person on his or her back
• Start chest compressions. Place the heel of your hand on the center of the victim's
chest. Put your other hand on top of the first with your fingers interlaced
• Press down so you compress the chest at least 2 inches in adults and children and 1.5
inches in infants. ''One hundred times a minute or even a little faster is optimal," (That's
about the same rhythm as the beat of the Bee Gee's song "Stayin' Alive.")
• If you're been trained in CPR, you can now open the airway with a head tilt and chin lift
, • Pinch closed the nose of the victim. Take a normal breath, cover the victim's mouth
with yours to create an airtight seal, and then give two, one-second breaths as you
watch for the chest to rise
• Continue compressions and breaths -- 30 compressions, two breaths -- until help
arrives
Hazards / Safety Practices Notes: - Answer-• An employer shall ensure that each
affected employee uses appropriate hand protection and other protective clothing where
there is exposure to hazards such as skin absorption of harmful substances, severe
cuts or lacerations, severe abrasions, punctures, chemical burns, thermal burns,
harmful temperature extremes, and sharp objects. Consult federal, state, and local
Hazardous Material procedures for disposal specifics
• First aid treatment for bleeding, burns, and broken bones. Never put ointments,
grease, or butter on a burn. They will only have to be painfully removed once medical
aid is obtained
Required Handling Knowledge for Handling Hazardous Materials - Answer-• How to use
hazardous substance
• Procedures to protect health and safety
• PPE use
Proper Safety Equipment - Answer-• Includes respirators, gloves, eye protection, and
dust masks
Material Safety Data Sheets (MSDS) - Answer-• Form containing data regarding the
properties of a particular substance
• Material Safety Data Sheets provide workers and emergency personnel with
procedures for handling or working with a hazardous substance in a safe manner
• These sheets include information such as physical data (e.g., melting point, boiling
point, flash point) toxicity, health effects, first aid, reactivity, storage, disposal, protective
equipment, and spill handling procedures
MSDS Compliance/Chemical Suppliers - Answer-• Hazardous chemical suppliers are
required by law to supply MSDSs to purchasers
MSDS Compliance/Employers - Answer-• Employers shall maintain any MSDSs
received with incoming shipments of hazardous chemicals
• Employers shall ensure that MSDSs are readily accessible during each work shift to
employees when they are in their work areas
• This information includes new chemicals or revised MSDSs
MSDS System - Answer-• Cataloging information on chemicals, chemical compounds,
and chemical mixtures
WITH 100% CORRECT DETAILED
ANSWERS
Active Hearing Protection - Answer-• Active Noise Reduction (ANR) earmuffs, headsets,
and helmets containing electronic components that enhance communications
• These devices substantially improve intelligibility and comfort, which decreases fatigue
Allowable Daily Exposure - Answer-• OSHA has adopted a 90 dB (A) level limit within a
daily 8- hour exposure
Noise Protection Program - Answer-• Includes training in normal operation of
equipment, support such as periodic screening of employees and facilities, and
applicable emergency procedures
Noise - Answer-• Refers to a sound, especially one that is noticeably unpleasant and
very loud
Passive Hearing Protection - Answer-• Earplugs and earmuffs with low-level protection
Job Briefings - Answer-• Meetings with employees involved before they start each job
• A Job briefing covers the following subjects: Hazards associated with the job Work
procedures involved Special precautions Energy source controls PPE requirements
Electrical Protective Devices - Answer-• Protective electrical insulated gloves and
sleeves or other electrical protective equipment to be worn when employees are
exposed to electrical shock hazards while working on electrical equipment
Circuit Protection Devices - Answer-• Include fuses, current limiters, thermal protectors
(switches), and circuit breakers
Elimination/Termination of Circuit Power - Answer-• Specific procedural steps for
shutting down, isolating, blocking, and securing machines or equipment to control
hazardous energy sources
• Lockout/tagout devices are often used
• There are also procedures for the placement, removal, and transfer of these devices
Electrical Power Protection Program - Answer-• Includes training in normal operation of
equipment, job briefings, support of safety-related work practices, and applicable
emergency procedures
,ESD - Answer-• Electrostatic Discharge is the instantaneous discharge of static
electricity that has built up on one surface or point and is discharged to another surface
or point
ESD Control Program - Answer-• Grounded workstation surfaces and equipment
• Personnel grounding
• Handling precautions
• Protective packaging for ESD items when transporting or storage
Conductive Wrist Strap (Connected to Earth Ground) - Answer-• Worn by an individual
to keep a workstation free of static charges
MIL-STD-129 - Answer-• ESD caution standard (military) that includes procedures for
precautionary measures
ESD Protection Program - Answer-• Includes training in examples of ESD failures,
prevention, support of safety-related work practices, and applicable emergency
procedures
Microwave (MW) Energy / Radiation - Answer-• Microwave energy is one form of
electromagnetic energy that makes up the electromagnetic spectrum
• Microwave frequencies are normally used for satellite communication and radar
• These frequencies are also used for bonding composite sheets for the automotive and
aerospace industries
Microwave Protection Program - Answer-• Includes training in normal operation of
equipment, support such as periodic screening of employees and facilities, and
appropriate emergency procedures
Acetone - Answer-• Organic solvent of industrial and chemical significance
• Acetone is colorless, volatile, and extremely flammable
Adhesives - Answer-• Substances that adhere or bond two components, or items,
together
• Many adhesives contain flammable and toxic elements
Caustic Solutions - Answer-• Substances that can burn and destroy living tissues or soft
metals
• Caustic solutions are usually strong acids and/or bases
Cleaners - Answer-• Substances that may contain solvents, corrosives, or any number
of chemicals to clean an aircraft
Coatings - Answer-• Substances that function to protect surfaces
• Coatings contain pigments, paints, solvents, drying oils, and other additives
,Degreasers and Strippers - Answer-• Substances that clean commercial and industrial
parts • Many degreasers and strippers contain flammable and toxic elements
Hazardous Liquids - Answer-• Includes corrosives, ignitables, and reactives, as well as
chemicals used as solvents, cleaners, caustic solutions, degreasers, strippers,
adhesives, and coatings
Solvents - Answer-• Substance that dissolves another substance or substances to form
a solution
• Solvents are usually, but not always liquid
• Solvents can also be gases or solids
Methyl Ethyl Ketone (MEK) - Answer-• Solvent used in the surface coating industry and
in dewaxing of lubricating oils
• Methyl Ethyl Ketone may be used with other solvents such as acetone, ethyl acetate,
hexane, toluene, and alcohols
Explain first aid for electrical shock with reference to the following safety precautions: -
Answer-• TURN OFF THE POWER as quickly as possible • If unable to locate the
power switches, do not attempt to touch the victim. Touching the victim will pass the
current through anyone who touches the victim
• If electrical power cannot be removed, use a dry wooden pole, wooden broom, or dry
wooden chair to PUSH or ROLL the victim clear of the power source. Dry,
nonconducting objects made of cardboard, plastic, or wood are suitable to use to
remove the victim from the power source
• If clothing, belt, rope, or cord must be used, be careful to AVOID CONTACT WITH
THE VICTIM! Form the rescue device into a loop, and slip the loop over the foot, leg, or
arm of the victim (without touching the victim) to drag them away from the power source
• Once the victim is "free" of the power source, do not move them unless it is necessary
• Proper Steps to Take in Case of Need for First Aid—When someone needs first aid
after electrical shock, follow these steps: > Keep the victim lying down > Slightly elevate
their legs and feet > Cover the victim with a blanket to maintain body heat > Do not
move the victim unless it is necessary > Seek qualified medical aid, but try not to leave
the victim alone > If the victim needs water, give them a few sips of water at first. Then,
gradually increase water intake unless nausea is present
First Aid and CPR: - Answer-American Heart Association Guide for CPR, October 18,
2010:
• Call 911 or ask someone else to do so
• Try to get the person to respond; if he doesn't, roll the person on his or her back
• Start chest compressions. Place the heel of your hand on the center of the victim's
chest. Put your other hand on top of the first with your fingers interlaced
• Press down so you compress the chest at least 2 inches in adults and children and 1.5
inches in infants. ''One hundred times a minute or even a little faster is optimal," (That's
about the same rhythm as the beat of the Bee Gee's song "Stayin' Alive.")
• If you're been trained in CPR, you can now open the airway with a head tilt and chin lift
, • Pinch closed the nose of the victim. Take a normal breath, cover the victim's mouth
with yours to create an airtight seal, and then give two, one-second breaths as you
watch for the chest to rise
• Continue compressions and breaths -- 30 compressions, two breaths -- until help
arrives
Hazards / Safety Practices Notes: - Answer-• An employer shall ensure that each
affected employee uses appropriate hand protection and other protective clothing where
there is exposure to hazards such as skin absorption of harmful substances, severe
cuts or lacerations, severe abrasions, punctures, chemical burns, thermal burns,
harmful temperature extremes, and sharp objects. Consult federal, state, and local
Hazardous Material procedures for disposal specifics
• First aid treatment for bleeding, burns, and broken bones. Never put ointments,
grease, or butter on a burn. They will only have to be painfully removed once medical
aid is obtained
Required Handling Knowledge for Handling Hazardous Materials - Answer-• How to use
hazardous substance
• Procedures to protect health and safety
• PPE use
Proper Safety Equipment - Answer-• Includes respirators, gloves, eye protection, and
dust masks
Material Safety Data Sheets (MSDS) - Answer-• Form containing data regarding the
properties of a particular substance
• Material Safety Data Sheets provide workers and emergency personnel with
procedures for handling or working with a hazardous substance in a safe manner
• These sheets include information such as physical data (e.g., melting point, boiling
point, flash point) toxicity, health effects, first aid, reactivity, storage, disposal, protective
equipment, and spill handling procedures
MSDS Compliance/Chemical Suppliers - Answer-• Hazardous chemical suppliers are
required by law to supply MSDSs to purchasers
MSDS Compliance/Employers - Answer-• Employers shall maintain any MSDSs
received with incoming shipments of hazardous chemicals
• Employers shall ensure that MSDSs are readily accessible during each work shift to
employees when they are in their work areas
• This information includes new chemicals or revised MSDSs
MSDS System - Answer-• Cataloging information on chemicals, chemical compounds,
and chemical mixtures
