Propeller Ice Control
Aircraft electrical power for propeller deicer systems transferred from the engine to the propeller hub assembly?
What are slip rings and brushes
On most reciprocating multiengine aircraft, automatic propeller synchronization is accomplished through the actuation of the
What are the propeller governors
During engine operation at speeds lower than those for which the constant-speed propeller control can govern in the INCREASE RPM position, the propeller will
remain in the full LOW PITCH position. and acts like a fixed pitch propeller
The propeller governor controls the
oil to and from the pitch changing mechanism.
How is the speed of a constant-speed propeller changed in flight?
By changing the load tension against the flyweights in the governor.
How is anti-icing fluid ejected from the slinger ring on a propeller?
By centrifugal Force
To control engine RPM and reduce vibration.
What is the automatic propeller synchronizing system on multiengine aircraft?
Grease used in aircraft propellers reduces the frictional resistance of moving parts and is easily molded into any form under pressure. This statement defines
What are the antifriction and plasticity characteristics of grease.
During the on-speed condition of a propeller, the
centrifugal force of the governor flyweights is equal to the speeder spring force.
When the centrifugal force acting on the propeller governor flyweights overcomes the tension on the speeder spring, a propeller is in what speed condition?
Overspeed
Propeller fluid anti-icing systems generally use which of the following?
What is Isopropyl alcohol.
A propeller synchrophasing system allows a pilot to reduce noise and vibration by
What is Adjusting the phase angle between the propellers on an aircraft's engines.
Why is the pulley stop screw on a propeller governor adjustable?
To adjust the maximum engine speed during takeoff.
What actuates the pilot valve in the governor of a constant-speed propeller?
Governor flyweights.
Which of the following best describes the blade movement of a propeller that is in the high RPM position when reversing action is begun?
Low pitch directly to reverse pitch.
Ice formation on a propeller blade will
produce unbalance and vibration.
What type of imbalance will cause a two-blade propeller to have a persistent tendency to come to rest in a horizontal position (with the blades parallel to the ground) while being checked on a propeller balancing beam?
What is Vertical imbalance
A powerplant using a hydraulically controlled constant-speed propeller is operating within the propeller's constant-speed range at a fixed throttle setting. If the tension of the propeller governor control spring (speeder spring) is reduced by movement of the flight deck propeller control, the propeller blade angle will
increase, engine manifold pressure will increase, and engine RPM will decrease.
What will happen to the propeller blade angle and the engine RPM if the tension on the propeller governor control spring (speeder spring) is increased?
Blade angle will decrease and RPM will increase
During which of the following conditions of flight will the blade pitch angle of a constant-speed propeller be the greatest?
High-speed, high-altitude cruising flight
The unit in the propeller anti-icing system controls the output of the pump?
What is the rheostat
Propeller aerodynamic (thrust) imbalance can be largely eliminated by
correct blade contouring and angle setting.
When engine power is increased, the constant-speed propeller tries to function so that it will
maintain the RPM, increase the blade angle, and maintain a low angle of attack.
A powerplant using a hydraulically controlled constant-speed propeller is operating within the propeller's constant-speed range at a fixed throttle setting. If the throttle is moved to open and increasing Manifold Pressure and Fuel flow, what other indications will you observe
The RPM will remain the same..
The pitch-changing mechanism of the hydromatic propeller is lubricated by
the pitch-changing oil.