CDC 2A354N Integrated Fighter Avionic Systems Journeyman Volume 1. General
Maintenance Information Written Self-Test Questions with Correct Answers
Verified by Experts| Latest Update
Why do helium and nitrogen create such a hazard in inadequately ventilated areas? They
can dilute the oxygen supply and cause suffocation.
What hazard does the cold temperature of liquid gasses create? Frostbite
What danger does evaporating LUX create? Danger of fire or explosion.
What is the operational hydraulic system pressure of most aircraft? At or above 3,000 psi
Name some possible contaminants of a hydraulic system. -Air
-Water
-Oils
-Fuel
-Dirt
What is the most common contaminant found in hydraulic systems? Air
What characteristic of air makes it such a serious problem in hydraulic systems?
Compressibility
What effect does contamination by dirt and sand have on a hydraulic system? It can score
the armature and damage the seal. It also slows the responses of the servo actuators.
Why should you never use your hands to feel for a hydraulic leak? Because it is pressurized
at 3,000 psi and it could cause loss of fingers. If the hydraulic fluid is injected into the blood
stream it will cause death.
,List two reasons why you should avoid wearing metal jewelry around electrical circuits. 1.
Greater risk for shock
2. Spot welding
When should you work on energized circuitry? Avoid doing so, but only when needed.
What are the benefits of the buddy system? Safety observer and if need be a medical
helper.
List three safety points you should always follow whenever you work around electricity. 1.
Always tell your partner when you work on a circuit.
2. Don't assume someone verified safety.
3. Never trust a switch.
What is the unit of measure used to measure noise levels? Decibels (dB)
What noise level, even for short duration, could rupture the eardrum? 160 dB and above
Below what noise level is considered relatively safe? 84 dB
Name the symptoms people who have received an overdose of sound may display. -Pain
-Ringing in ear
-Nausea
-Vomiting
-Feeling of fullness
-Weakness of the knees
, What should you do if you or your coworkers experience the symptoms of noise overdose?
Seek medical help immediately.
Although you can't easily recognize the symptoms of minor noise overdoses, frequent exposure
to these small overdoses can cause permanent hearing loss. What does the AF do to try and
detect the first signs of hearing loss? Periodical hearing checks.
When do F-15 engines produce the most dangerous levels of noise? When the engine is in
afterburner.
What type of AGE uses a small jet turbine to turn its generator and produce bleed air? -60A
When should you wear both earplugs and earmuffs? Whenever noises reace 120 dB, but
generally whenever you're on the flightline.
How long per day is it safe to expose yourself to 140 dB of noise while wearing both earplugs
and earmuffs? Less than 5 minutes a day.
List the 4 ways that RF can cause harm. 1. Direct Biological
2. Indirect Biological
3. The ignition of fuel
4. The detonation of an electro-explosive device. (EED)
How does RF damage your internal organs? RF energy can heat up your internal organs,
even cook them.
What are the symptoms of RF radiation exposure? -Flu like symptoms:
-Headache
-Nausea
Maintenance Information Written Self-Test Questions with Correct Answers
Verified by Experts| Latest Update
Why do helium and nitrogen create such a hazard in inadequately ventilated areas? They
can dilute the oxygen supply and cause suffocation.
What hazard does the cold temperature of liquid gasses create? Frostbite
What danger does evaporating LUX create? Danger of fire or explosion.
What is the operational hydraulic system pressure of most aircraft? At or above 3,000 psi
Name some possible contaminants of a hydraulic system. -Air
-Water
-Oils
-Fuel
-Dirt
What is the most common contaminant found in hydraulic systems? Air
What characteristic of air makes it such a serious problem in hydraulic systems?
Compressibility
What effect does contamination by dirt and sand have on a hydraulic system? It can score
the armature and damage the seal. It also slows the responses of the servo actuators.
Why should you never use your hands to feel for a hydraulic leak? Because it is pressurized
at 3,000 psi and it could cause loss of fingers. If the hydraulic fluid is injected into the blood
stream it will cause death.
,List two reasons why you should avoid wearing metal jewelry around electrical circuits. 1.
Greater risk for shock
2. Spot welding
When should you work on energized circuitry? Avoid doing so, but only when needed.
What are the benefits of the buddy system? Safety observer and if need be a medical
helper.
List three safety points you should always follow whenever you work around electricity. 1.
Always tell your partner when you work on a circuit.
2. Don't assume someone verified safety.
3. Never trust a switch.
What is the unit of measure used to measure noise levels? Decibels (dB)
What noise level, even for short duration, could rupture the eardrum? 160 dB and above
Below what noise level is considered relatively safe? 84 dB
Name the symptoms people who have received an overdose of sound may display. -Pain
-Ringing in ear
-Nausea
-Vomiting
-Feeling of fullness
-Weakness of the knees
, What should you do if you or your coworkers experience the symptoms of noise overdose?
Seek medical help immediately.
Although you can't easily recognize the symptoms of minor noise overdoses, frequent exposure
to these small overdoses can cause permanent hearing loss. What does the AF do to try and
detect the first signs of hearing loss? Periodical hearing checks.
When do F-15 engines produce the most dangerous levels of noise? When the engine is in
afterburner.
What type of AGE uses a small jet turbine to turn its generator and produce bleed air? -60A
When should you wear both earplugs and earmuffs? Whenever noises reace 120 dB, but
generally whenever you're on the flightline.
How long per day is it safe to expose yourself to 140 dB of noise while wearing both earplugs
and earmuffs? Less than 5 minutes a day.
List the 4 ways that RF can cause harm. 1. Direct Biological
2. Indirect Biological
3. The ignition of fuel
4. The detonation of an electro-explosive device. (EED)
How does RF damage your internal organs? RF energy can heat up your internal organs,
even cook them.
What are the symptoms of RF radiation exposure? -Flu like symptoms:
-Headache
-Nausea
