AT 202 - Test 2 UPDATED ACTUAL Exam Questions and
CORRECT Answers
thermal characteristics - the molecular stability of a substance at various temperatures
chemical stability - the ability to resist oxidation and deterioration
corrosivness - caused by oxidation
vegetable base - type of fluid:
- older and not used much
- caster oil and alcohol mixture
- slightly blue to amber for identification
vegetable base - type of fluid:
- natural rubber seals
- used in vintage aircraft and automobiles
- extremely flammable
mineral base - type of fluid:
- common in modern aircraft
- petroleum distillate based fluid
mineral base - type of fluid:
- red dye for identification
- synthetic rubber seals, leather and metal compositions
, - flammable
synthetic base - type of fluid:
- common in military and large aircraft
- phosphate and ester based fluid
- dyed purple for identification
- butyl seals
synthetic base - type of fluid:
- used in high pressure, temperature
- anti-fire / low flammability
- damaging to wiring, paint, insulation...
rigid line - - aluminum or stainless steel
- can handle high pressure (3000-5000 lbs)
- cant be used to connect to vibration or movable components
low pressure - - low pressure: 150-300 psi
- medium pressure: 1500 psi
- high pressure: 3000 psi
fittings - - aluminum for low and medium pressure
- steel for high pressure
- pipe threads vs. tube threads
gaskets - thin membrane sandwiched between 2 stationary parts
CORRECT Answers
thermal characteristics - the molecular stability of a substance at various temperatures
chemical stability - the ability to resist oxidation and deterioration
corrosivness - caused by oxidation
vegetable base - type of fluid:
- older and not used much
- caster oil and alcohol mixture
- slightly blue to amber for identification
vegetable base - type of fluid:
- natural rubber seals
- used in vintage aircraft and automobiles
- extremely flammable
mineral base - type of fluid:
- common in modern aircraft
- petroleum distillate based fluid
mineral base - type of fluid:
- red dye for identification
- synthetic rubber seals, leather and metal compositions
, - flammable
synthetic base - type of fluid:
- common in military and large aircraft
- phosphate and ester based fluid
- dyed purple for identification
- butyl seals
synthetic base - type of fluid:
- used in high pressure, temperature
- anti-fire / low flammability
- damaging to wiring, paint, insulation...
rigid line - - aluminum or stainless steel
- can handle high pressure (3000-5000 lbs)
- cant be used to connect to vibration or movable components
low pressure - - low pressure: 150-300 psi
- medium pressure: 1500 psi
- high pressure: 3000 psi
fittings - - aluminum for low and medium pressure
- steel for high pressure
- pipe threads vs. tube threads
gaskets - thin membrane sandwiched between 2 stationary parts
