Hydraulic Or Pneumatic Flashcards
Three types of hydraulic fluid?
Vegetable, minerals, phosphate ester
Mineral color?
Red
What is an effect of leaking skydrol (Phosphate)?
Soften, damage, or peel vinyl, enamel, lacquer , oil base paint
Feature in parts to prevent damage in case of seizure?
Sheer section in shaft
How to minimize contamination during a component change?
Cap lines
What could cause a filter to bypass?
Clogged
Sources of hydraulic pressure in aircraft?
Hand pumps, engine driven pumps, electrical driven pumps
Methods of pressurization on reservoirs?
Cabin pressurization, turbine, aspiration, Venturi tee
How does a gear top pump operate?
As the gears mash, fluid is pressurized and sent out of the case
Two types of engine driven pumps?
Constant delivery and variable delivery
Purpose of a pressure regulator?
Maintain pressure and upload system on shut down
Purpose of relief valve?
Limit pressure and prevent damage
What is used to supplement pumps?
Accumulator
Different types of accumulators?
Diaphragm, Bladder, piston
Purpose of pneumatic systems?
Brakes, doors, dive pumps, and starting
