Kahoot

Blade tracking should be within _____ +/- of the other blades track.

1/16"

The force that tries to twist the propeller blades in such a way that increases the blade pitch angle is the _____?

Aerodynamic Twisting force

The angle at which the air (relative wind) strikes the propeller blade is called?

Angle of Attack

What is the process of determining the position of the tips of the prop blade relative to each other called?

Blade Tracking

What are the designated distances in inches, measured from along a propeller blade from the center of the hub called?

Blade stations

How are composite propeller blades checked for delamination or debond?

Coin Tap

A propeller boot, slip ring, brush block assembly, and bushes are used in what type of system?

De-icing system

Many of the earliest fixed pitch metal propellers were manufactured in one piece of forged?

Duralumin

What type of propeller balancing uses electrical devices such as accelerometer and photo sensors?

Dynamic

The actual distance a propeller moves forward in one revolution is called?

Effective pitch

On modern day aircraft a propeller deicing control system uses ___________ to deice the blades?

Electrical energy & heating elements *

Ground adjustable propellers can be adjusted by the pilot in flight

False

The auto-feather system is only used on the ground.

False

Torque Bending force tries to twist the propeller blades in such a way that decreases the blade pitch angle.

False

Centrifugal Twisting Force tries to pull the propeller blades out of the hub.

False,

The curve side of the prop is called the blade face.

False, called blade back facing away from the pilot

Most modern metal fixed-pitch propellers are made of cast aluminum alloy

False, forged aluminum alloy

Name 4 components in the governor?

Fly-weights, pilot valve, gear pump, speeder spring

when troubleshooting refer to the correct manual for actual information on trouble shooting. some of the reasons for troubleshooting propellers would be?

Hunting & surging

A typical propeller anti icing system uses?

Isopropyl Alcohol

What are the four forces acting on an aircraft in flight?

Lift, weight, thrust, and drag

What should be used to examine defects on a metal propeller?

Magnifying Glass

What two instruments are monitored during the control setting of a variable pitch propeller?

Map and Tach

The purpose of the drain holes in the wooden propeller tipping is to dissipate _____?

Moisture

Where on the on the propeller blade is the greatest pitch angle?

Nearest to the hub

A turboprop propeller is normally driven by _________?

One or two stages of Planetary reduction gears

The gradual change of blade section angles is called what?

Pitch distribution

What is the purpose of the metal tipping along the leading edge of a wooden propeller?

Protect form damage

Propeller Nomenclature is ________

Pusher, tractor

A controllable propeller in which the blade angles can be changed to a negative value during operation is a

Reverse pitch propeller, negative will slow down

In a propeller anti-icing system what controls the pump for that system?

Rheostat

Two types of propeller balancing

Static, dynamic

Centrifugal twisting force tends to force the blades toward a lower angle.

TRUE

A _________ propeller is used to test and break in reciprocating engines?

Test Club

The force that tries to bend the propeller blades forward in flight is?

Thrust bending Force

What is propeller efficiency is the ratio of _____ hp to _____hp

Thrust, brake

_________ tends to bend the propeller blades in the direction opposite that of rotation?

Torque bending force

The propeller location nomenclature is?

Tractor and pusher

The auto feathering system dumps oil pressure from the propeller cylinder if it senses low torque from the engine

True, The system uses a solenoid valve to dump oil pressure from the propeller cylinder (this allows the prop to feather) if two torque switches sense low torque from the engine.

When the flyweights tilt inward because there is not enough centrifugal force on the flyweights?

Under speed

What is used to check prop blade angle?

Universal propeller protractor

A propeller installation is dynamically balanced by?

adding weights to the propeller spinner bulkhead

There are several forces acting on the propeller as it turns; a major one is __________ force.

centrifugal

when charging a propeller air dome use?

dry nitrogen

An aviation maintenance technician holding a Powerplant rating may make major repairs and minor alterations to a prop.

false, minor repairs & minor alterations

The pilot valve is controlled by the ____________ in the governor to control the flow of oil through the govenor

flyweights

Feathering a propeller is high pitch or low pitch?

high, 90 degree angle. Reduce drag and prevents wind milling, minimizing damage

Where is the prop info found on the prop?

hub

When the engine is operating above the rpm set by the pilot using the cockpit control, the governor is operating in ____

over speed

The difference between the geometric pitch and effective pitch is called _____

slip

______ is designed to sync the master propeller and the slave propeller to reduce vibration and noise.

synochrophasing system

The spinning of the propeller without the power of the engine is called ______?

windmilling