This quiz assesses knowledge on the 54H60-91 propeller system, focusing on components such as the barrel, beta feedback shaft, and pitchlock mechanisms. It is designed for professionals seeking certification in aerospace propulsion systems, enhancing understanding of propeller mechanics and operational safety.
Main pressure and main scavenge.
Standby pressure and main scavenge.
Auxiliiary pressure and main pressure.
Auxiliary pressure and auxiliary scavenge.
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Barrel.
Control.
Low pitch stop.
Pitchlock regulator.
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Microadjusting ring.
Beta feedback shaft.
Blade segment gear.
Blade bushing.
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Standby.
Feather.
Backup.
Pilot.
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Pitchlock control cam.
Pitchlock ratchet piston.
Externally threaded ring.
Externally splined spacer ring.
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Drives the main and standby pressure pumps.
Controls operation of the pilot valve and serves as an electrical ground.
Drives the rotating sleeve when the throttle is positioned in the beta range.
Transmits blade angle movement to the valve housing and drives the propeller governor flyweights.
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99 to 103%
104 to 108%
109 to 113%
114 to 118%
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Roller shaft.
Track slopes.
Ball bearings.
Roller bearings.
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Beveled thrust washer.
Stationary ratchet.
Beta segment gear.
Blade barrel shim.
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Stops the dome piston from increasing blade angle above 23.3
Prevents the blades from decreasing pitch if hydraulic pressure is lost.
Prevents the cam bearing rollers from bottoming out in the track slopes.
Prevents the propeller from going into the beta range when the throttle is positioned in alpha range.
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Main scavenge.
Standby pressure.
Auxiliary pressure.
Auxiliary scavenge.
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Manual feather.
Beta follow-up.
Speed set.
Beta set.
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Valve housing.
Low pitch stop.
Transfer bearings.
Pitchlock regulator.
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Prevents the propeller from going into the beta range when the throttle is positioned in the alpha range.
Limits cam travel and prevents the propeller from exceeding feather and reverse blade angles.
Prevents the blades from decreasing pitch if an overspeed condition occurs.
Transmits engine torque to the blades.
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