Wind turbine fluid power systems may include: blade pitch, parking brakes, and active yaw brakes.
Answer the following statement true (T) or false (F)
True
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One mole of air, initially at 150°C and 8 bar, undergoes the following mechanically reversible changes. It expands isothermally to a pressure such that when it is cooled at constant volume to 50°C its final pressure is 3 bar. Assuming air is an ideal gas for which 
and 
calculate W, Q, ?U, and ?H.
What will be an ideal response?
Most electronic transfer case controls (push button or rotary) use what type of switch?
A) On or off B) Multiplex C) Relay D) Serial data
Vacuum problems can be caused by incorrect hose routing or defects with a backpressure transducer, thermal switching valve, or solenoid.
Answer the following statement true (T) or false (F)
Bulbs removed from the ground should be _____
A) dusted with a pesticide B) stored in sawdust or peat moss C) stored at 50°F with a dim light D) all of the above