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!!!&Block 16 3

HomeWork 16

QuestionAnswer
1. When lubricating a Hartzell compact propeller with grease, what would be the consequence of failing to remove one of the two zerk fittings (per blade)? 1. The grease may not be evenly distributed and could cause an imbalance or damage blade seals and bearings 2. This is not a problem 3. The hub could get over greased, but this will not affect the operation of the prop The grease may not be evenly distributed and could cause an imbalance or damage blade seals and bearings
2. What operational force tends to increase blade angle? 1. Thrust bending force 2. Centrifugal twisting force 3. Centrifugal force Centrifugal twisting force
3. When the engine power is decreased, the constant speed propeller tries to function so that it will 1. increase the rpm, decrease the blade angle. and maintain a low AOA 2. maintain the rpm, decrease the blade angle, and maintain a low AOA 3. maintain the rpm, increase the blade angle, and maintain a low AOA maintain the rpm, decrease the blade angle, and maintain a low AOA
4. The propeller governor maintains and controls the 1. aircraft speed 2. blade angle for specific RPM 3. engine/propeller RPM engine/propeller RPM
5. How would you correct an out of track condition for a constant speed propeller? 1. bend the blades to the correct track 2. Send the propeller to a repair station 3. check the mounting flange for security Send the propeller to a repair station
6. Where are the highest vibrational stresses located in a propeller? 1. Blade Shank 2. Propeller Hub 3. Near the Blade Tips Blade Shank
7. On some reciprocating multiengine aircraft, propeller synchronization is accomplished 1. automatically through propeller governors 2. automatically through FAOEC 3. by manually adjusting engine mixtures automatically through propeller governors
8.When operating an electrical de-ice system, how would the pilot know if one de-ice boot of a propeller is not functioning properly? 1. He could see ice build up on the blade 2. The load meter is not indicating properly 3. The propeller ice warning light will illuminate The load meter is not indicating properly
9. In accordance with CFR 14 Part 45, what information is required to be on a propeller? (Select all that apply) 1. Manufacturer 2. Model Number 3. Date of Manufature 4. Type Certificate Number 5. Production Contract Number 6. Serial Number 7. Repair Station Number Manufacturer, Model Number, Type Certificate Number, Serial Number
1O. The purpose of a propeller brake is to 1. assist in slowing the aircraft upon landing 2. assist in slowing the aircraft in flight 3. to reduce propeller coast down time and prevent wind-milling after engine shutdown to reduce propeller coast down time and prevent wind-milling after engine shutdown
11. What is the most dominate force acting on a propeller? 1. Thrust Bending 2. Torque Bending 3. Centrifugal Centrifugal
12. Aerodynamic twisting forces tend to ______the propeller angle? 1. increase 2. decrease 3. minimally effect increase
13.Which component controls the oil flow into and out of the pitch change mechanism in the propeller hub assembly? 1. Oil Sump Auxiliary Pump 2. Propeller Governor 3. Main Oil Pump Sensor Switch Propeller Governor
14.How is the blade angle chosen for a fixed pitch wooden propeller? 1. The most cost effective choice 2. The most efficiency during level flight 3. Maximum thrust capability The most efficiency during level flight
15. What actuates the pilot valve in the governor of a constant speed propeller? 1. Engine Oil Pressure 2. Governor Flyweights 3 .Governor Oil Pump Pressure Governor Flyweights
16. The primary purpose of a propeller is to 1. create lift on the airfoils of an aircraft 2. change engine horsepower to thrust 3. provide static and dynamic stability of an aircraft in flight change engine horsepower to thrust
17.What normally prevents a Hartzell Compact propeller from going into feather when the engine is shut down on the ground? 1. Propeller cylinder air pressure 2. A latch mechanism composed of springs and lock pins 3. Accumulator provided oil pressure A latch mechanism composed of springs and lock pins
18. For takeoff, a constant speed propeller is normally set in the 1. High Pitch, High RPM position 2. High Pitch, Low RPM position 3. Low Pitch. High RPM position Low Pitch. High RPM position
19. Repairs of aluminum alloy adjustable pitch propellers are not permitted to be made on which of the following propeller blade areas? 1. Shank 2. Face 3. Back Shank
20. How is electrical power for propeller deice systems transferred from the engine to the propeller hub assembly? By slip rings and brushes By slinger rings By flexible electrical connections By slip rings and brushes
21. The thrust produced by a rotating propeller is a result of 1. an area of low pressure behind the propeller blades 2. an area of decreased pressure immediately in front of the propeller 3. The angle of relative wind and rotational velocity of the propeller The angle of relative wind and rotational velocity of the propeller
22. How are composite propeller blades inspected for defects? (select all that apply) 1. Visually 2. Dye Penetrant 3. Coin Tap 4. Mag Particle 5. Eddy Current Visually, Coin Tap, Eddy Current
23. Which of the following requires the use of a propeller station? 1. Propeller Balancing 2. Indexing Blades 3. Measuring Blade Angle Measuring Blade Angle
24. The gradual decrease in blade angle from the hub to the tip is called 1. Pitch Distribution 2. Angle of Attack 3. Blade Angle Pitch Distribution
25. Blade angle is an angle formed by a line perpendicular to the crankshaft and a line formed by the 1. blade face 2. relative wind 3. chord of the blade chord of the blade
Created by: sampizzuto
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