FREE AVIATION AND STUDY GAMES ABOUT PROPELLERS

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FREE AVIATION AND STUDY GAMES ABOUT PROPELLERS

EXAM QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -119 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation Question 1: how is the oil pressure delivery on a hydromatic propeller normally stopped after the blades have reached their full feather position?

Answer:

electric cutout pressure switch Question 2: what type of imbalance will cause two-blade propeller to have a persisntent rendency to come to rest in a horizontal position (with the blades parallel to the ground) while being checked on a propeller balancing beam?

Answer:

vertical Question 3: propeller aerodynamic (thrust) imbalance can be largely eliminated by

Answer:

correct blade contouring and angle setting Question 4: constant-speed non-feathering McCauley, Hartzell, and other propellers of similar design without conterwights increase pitch angle using

Answer:

oil pressure

Question 5: what method would be used to inspect an aluminum propeller blade when a crack is suspected?

Answer:

dye-penetrate Question 6: which of the following functions requires the use of a propeller blade station?

Answer:

Measuining blade angle Question 7: how is aircraft electrical power propeller deicer systems transferred from the engine to the propeller hub assembly?

Answer:

by slip rings and brushes

Question 8: propeller blade angle is the angle between the

Answer:

chord of the blade and the rotational plane of the propeller

Question 9: the centrifugal twistin force acting on a propeller balde is

Answer:

greater than the aerodynamic twisting force and tends to move the blade to a lower angle Question 10: what normally prevents a Hartzell compact propeller from going to feather when the engine is shut down on the ground?

Answer:

a latch mechanism composed of springs and lock pins

Question 11: how is the speed of a constant-speed propeller changed in flight?

Answer:

by changing the load tension against the flyweights in the governor

Question 12: the primary purpose of a cuff on a propeller is to

Answer:

increase the flow of cooling air to the engine nacelle

Question 13: which of the following best describes the blade movement of a propeller that is in the high RPM position when reversing action is begun?

Answer:

low pitch directly to reverse pitch Question 14: the holding coil on a hydromatic propeller feathering button switch holds a solenoid relay closed that applies power to the propeller

Answer:

feathering pump motor Question 15: which of the following determine oil and grease specifications for lubrication of propellers?

Answer:

propeller manufacturer's instructions

Question 16: what is the purpose of an arbor used in balancing a propeller?

Answer:

to support the propeller on the balance knives

Question 17: ice formation on a propeller blade will

Answer:

produce unbalance and vibration Question 18: if a blade of a particular metal propeller is shortened because of damage to the tip, the remaining blade(s) must be

Answer:

reduced to confirm with the shortned blade Question 19: how does the aerodynamic twisting force affect operating propeller blades?

Answer:

it tends to turn the blades to a high blade angle Question 20: one of the advantages of inspecting an aluminum propeller utilizing dye-penetrant inspection procedure is that

Answer:

it shows whether visible lines and other marks are actually cracks rather than scratches

Question 21: what operational force causes propeller blade tips to lag in the opposite direction of rotation?

Answer:

torque-bending force Question 22: the primary purpose of the front and rear cones for propellers that are installed on splined shafts is to

Answer:

position the propeller hub on the splined shaft Question 23: maximum taper contact between crankshaft and propeller hub is determined using

Answer:

bearing blue color transfer Question 24: oil leakage around the rear cone of a hydromatic propeller usually indicates a defective

Answer:

spider-shaft oil seal Question 25: a fixed-pitch wooden propeller that has been properly installed and the attachment bolts properly torque exceeds the out-of-track allowance by 1/16 inch. the excessive out-of-track condition may be corrected by

Answer:

placing shims between the inner flange and the propeller Question 26: generally, unless otherwise specified by the manufacturer, repairs of nicks, scratches, gouges, etc., on aluminum propeller blades must be made

Answer:

parallel to the lenght of the blade Question 27: what operational force tends to bend the propeller blades forward at the tip

Answer:

thrust-bending force