Turbine Prop

Question 1

Grease reduces the frictional resistance of parts and is easily molded into any form under pressure, this statement defines

Answer 1

Anti friction and Plasticity characteristics of grease

Question 2

Engine operation at speeds lower than those which the constant speed propeller control can govern in the INCREASE RPM position, the propeller will

Answer 2

Remain in the full low pitch position

Question 3

Determines oil and grease specification for lubrication of propellers

Answer 3

Propeller manufacturer

Question 4

Blade tracking is the process of determining

Answer 4

Position of the tips of the propeller blades relative to eachother

Question 5

Aircrafts propeller system beta range

Answer 5

Is used to produce ZERO or NEGATIVE THRUST

Question 6

Blades station are measured from the

Answer 6

Hub center line

Question 7

Counterweights on counter speed propellers are used to aid in

Answer 7

Increase blade angle

Question 8

During what condition will blade pitch be the greatest

Answer 8

High speed and high altitude cruising flight

Question 9

Force tend to increase propeller blade angle

Answer 9

Aerodynamic twisting force

Question 10

How is a propeller in a large aircraft with turbo prop controlled

Answer 10

By the engine power lever

Question 11

Identified as the cambered or curved side of propeller blade corresponding to the upper surface of a wing

Answer 11

Blade back

Question 12

How is electrical power for propeller de icer system transferred from the ENGINE to propeller HUB

Answer 12

By slip rings and carbon brushes

Question 13

Removal of blade tips within type certificate data sheets limits when correcting defects is

Answer 13

A major repair

Question 14

Blade movement of a feathering propeller that is in the HIGH RPM position when feathering action begun

Answer 14

Low pitch THOUGH HIGH PITCH to feather position

Question 15

Ice formation on propellers during flight will

Answer 15

Decrease thrust and cause excessive vibrations

Question 16

Renders and aluminum allow propeller unrepairable

Answer 16

Transverse cracks of any size

Question 17

Critical ranges are established to avoid

Answer 17

Severe propeller vibrations

Question 18

Manually feathering a “HYDROMECHANICAL” propeller means to

Answer 18

Port governor oil pressure from the cylinder of the propeller

Question 19

Surface treatment to counter the effects of dye penetrant inspection on prop is accomplished by

Answer 19

Washing off with solvent

Question 20

Propeller blade stations increase from

Answer 20

Hub centerline to tip

Question 21

Nico in aluminum allow propeller blades be repaired soon as possible in order to

Answer 21

Eliminate stress concentration point

Question 22

Blade angle is the angle between

Answer 22

CHORD OF THE BLADE and the ROTATIONAL PLANE of the PROPELLER

Question 23

Dye penetrant inspection on prop is accomplished to detect

Answer 23

Cracks and other defects

Question 24

How is speed of propeller changed during flight

Answer 24

By changing the load tension against the flyweights in the governor

Question 25

Purpose of permanently sealing and partially filling hubs with dyed oil is to

Answer 25

Make the location of cracks readily apparent

Question 26

How is anti fluid ejected from the slinger ring on props

Answer 26

By centrifugal force

Question 27

Geometric pitch of prop is defined as the

Answer 27

Effective pitch plus slippage

Question 28

Angle of attack of rotating propeller blade is MEASURED between the blade chord or face and

Answer 28

Relative airstream

Question 29

Propeller governor controls the

Answer 29

Oil to and from the changing pitch mechanism

Question 30

Reason for careful inspection of minor surface scratches on aluminum allow propellers is to prevent

Answer 30

Fatigue failure

Question 31

If a flanged propeller shaft has dowel pins

Answer 31

The propeller can be installed in a given position

Question 32

Advantage of dye penetrant

Answer 32

It shows weather visible lines are cracks rather than scratches

Question 33

When engine power is increased constant speed propellers tries to function so that it will

Answer 33

Maintain RPM, increase blade angle, maintain low angle of attack

Question 34

Unit that control the output of the anti icing pump

Answer 34

Rheostat

Question 35

Thrust produced by rotating propeller is a result of

Answer 35

An area of decreased pressure immediately in front of the propeller blades

Question 36

Constant speed non feathering, mccauley, hartzell WITHOUT counterweights increase pitch angle using

Answer 36

Oil pressure

Question 37

Force causes the greatest stress on propeller

Answer 37

Centrifugal force

Question 38

Force tends to bend propellers forward

Answer 38

Thrust bending force

Question 39

Synchrophasing system allows pilot to reduce noose and vibration by

Answer 39

Adjusting the PHASE ANGLE between propellers

Question 40

Centrifugal force acting on a propeller

Answer 40

Is greater than aerodynamic TWISTING force and tends to move the blade to a lower pitch angle

Question 41

Repairs of nicks in aluminum prop must be made

Answer 41

Parallel to the length of the blade

Question 42

Purpose of a 3 way propeller valve

Answer 42

Direct oil from the engine oil system to the propeller cylinder

Question 43

Prepairing blade for inspection shouod be cleaned with

Answer 43

Mild soap and water

Question 44

Primary purpose of a feathering propeller is to

Answer 44

Eliminate the drag created by a windmilling propeller when an engine fails in flight

Question 45

How propeller speed governor on a turbo prop engine DECREASES RPM

Answer 45

By allowing oil to escape the propeller hub, driving the blades to an increase blade angle

Question 46

Propeller aerodynamic "Thrust" imbalance can be largely eliminated by

Answer 46

Correct blade contouring and angle setting

Question 47

Requires the use of propeller blade station

Answer 47

Measuring blade angle

Question 48

How steel propeller hub be tested for cracks

Answer 48

By magnetic particle inspection

Question 49

Function of automatic propeller synchronizing on multi engine is to

Answer 49

To control engine rpm and reduce engine vibration

Question 50

Actuates pilot valve in the governor of propeller

Answer 50

Governor flyweights

Question 51

Used to inspect aluminum propeller blade when crack is suspected

Answer 51

Dye penetrant

Question 52

Distance a propeller moves through the air during one revolution

Answer 52

Effective pitch

Question 53

Cold straightening an aluminum blade is accomplished by

Answer 53

A appropriately rated repair station or manufacturer