11.11 - Hydraulics

Question 1

Some hydraulic reservoirs are pressurised to prevent the pump _______

Answer 1

cavitating

Question 2

Two methods of pressurizing a hydraulic reservoir are:

Answer 2

1. Engine compressor bleed air (APU possibly also.. pnuematically)
2. system hydraulic pressure

Question 3

An engine-driven hydraulic pump is prevented from building up damagingly high pressure if the pressure regulator (constant dispacement pump) and relief valve fail be a/an ________ in the drive shaft

Answer 3

shear section

Question 4

A mechanically operated flow control valve that prevents fluid flowing to one unit before some other unit has actuated completely is called a/an _______ valve

Answer 4

sequence

Question 5

A flow control valve that allows full flow in one direction but no flow in the opposite direction is called a/an _____ valve

Answer 5

check

Question 6

A flow control valve that allows a full flow in one direction but a restricted flow in the opposite direction is called a/an ________

Answer 6

orifice check valve (restrictor valve)

Question 7

A component that shuts off the flow of hydraulic fluid if a line should rupture is called a hydraulic ______

Answer 7

fuse