AUTC 204 Hydraulics

One of the basic principles of hydraulics is that liquids cannot be _____.

• evaporated

• compressed

• combined

• combustable

Technician A says that fluids can transmit motion. Technician B says that fluids can transmit pressure. Who is right?

• Technician A Only

• Technician B Only

• Both Technician A and B

• Neither Technician A or Technician B

One way to multiply hydraulic pressure is to vary the size of the apply and output _____.

• Pressure

• Pistons

• Hoses

• Valves

Hydraulic check valves permit fluid flow in how many directions?

• 3

• 2

• 1

All of the following statements about check valves are true,except:

• check valves are usually steel balls.

• flow in one direction will cause the valve to unseat.

• flow in the other direction will cause the valve to seat.

• valve bodies have one check ball.

Valve

• Spool-like flow control element

• Drilled in casting to receive spool valve

• Casting with internal passageways

• Controls pressure setting of some spool valves

Valve Bore

• Spool-like flow control element

• Drilled in casting to receive spool valve

• Casting with internal passageways

• Controls pressure setting of some spool valves

Valve Body

• Spool-like flow control element

• Drilled in casting to receive spool valve

• Casting with internal passageways

• Controls pressure setting of some spool valves

Valve Spring

• Spool-like flow control element

• Drilled in casting to receive spool valve

• Casting with internal passageways

• Controls pressure setting of some spool valves

Hydraulic system valves are internally actuated (moved) by_____ pressure.

• Air

• Hydraulic

• Magnetic

• Peer