PUNTA CANA MODULE 17 B

In a turbo propeller twin engine system using FADEC, which synchronization method is most likely used?. Synchronization and Synchrophasing. Syncrophasing. Synchronization.

Blade angle is measured using a. propeller protractor. bevel protractor. clinometer.

Ground running an aircraft with a fixed pitch prop with its tail into wind causes the engine RPM t. decrease. stay the same regardless of wind direction. increase.

A ducted propeller. gives more thrust at low RPM than an unducted propeller. can only be used for vectored thrust. although safe to personnel gives less thrust at low RPM than an unducted propeller.

A propeller synchrophasing system allows a pilot to reduce noise and vibration by. adjusting the phase angle between the propellers. adjusting the plane of rotation of all propellers. setting the RPM of all propellers exactly the same.

Constant speed non-feathering McCauley, Hartzell and other propellers of similar design without counterweights increase pitch angle using. oil pressure. centrifugal twisting moment. spring pressure.

On a metal propeller blade with multiple indentations, how are the repair depth limits assessed?. Each individual dent is treated separately. Indentations are acceptable as long as they do not exceed 25% of blade thickness. Using the sum of all the indentations.

A propeller blade absorbs more power at. all blade angles, as all blade angles absorb equal power. a high blade angle. a low blade angle.

How is the concentricity of a propeller shaft checked?. Dial Test Indicator (DTI). Ring gauge. Micrometer.

As a propeller blade moves through the air, forces are produced, which are known as. thrust and torque. lift and torque. lift and drag.

During engine warm up the mixture should be at. rich, blades at superfine. lean, blades at superfine. rich, blades at feather.

Electrically de-iced propeller slip rings have regular resistance checks for. open circuit heating elements. wear between brushes and slip ring. oxidisation due to altitude.

Auto feathering is disarmed. in the cruise. during landing. during take off.

A compound twin spool engine is. turbo prop twin spool compressor. turbo prop propeller driven by a power turbine. LP Compressor driven by a free turbine.

Blade tracking check compares. any 2 blades. 2 Opposite blades. 2 Adjacent blades.

If RPM has to be altered with synchronization selected, what action is required?. Select Master engine RPM lever. Switch off synchronizer and select new RPM. Select Slave engine RPM lever.

A wooden propeller in storage. should be wrapped loosely. should not be wrapped at-all. should be wrapped tightly.

An aerodynamic correction factor that is preceded by the letter ‘Q’ indicates. torque balance. thrust balance. dynamic balance.

A propeller blade absorbs more torque at. a high blade angle. all blade angles, as all blade angles absorb equal torque. a low blade angle.

Aerodynamic twisting moment tends to. increase blade angle. decrease blade angle. decrease angle of attack.

A propeller synchronising system allows to reduce noise and vibration by. setting the RPM of all propellers exactly the same. adjusting the phase angle between the propellers. adjusting the plane of rotation of all propellers.

If, in pre-entering preservation, a defect is found on a propeller, this defect is rectified. before entering preservation. after preservation, but before leaving preservation. after leaving preservation, before entering service.

A hydraulic pitch lock is utilised in a hydromatic propeller to. lock out the fine pitch oil line in the event of overspeeding. lock out the coarse pitch oil line in the event of underspeeding. prevent the propeller overspeeding in the event of oil supply failure.

A propeller operating in the Beta range is operating between. maximum reverse pitch and Flight idle pitch. Flight Idle and Ground Idle. coarse and flight fine pitch.

If an aircraft is placed in a dive from cruise, the propeller condition will be. overspeed. underspeed. onspeed.

PCU (Propeller Control Unit) hydraulic system is supplied with oil from the. engine lubrication oil tank. aircraft hydraulic system. PCU oil tank.

A line of indentations across more than 25% of the chord at one blade section can be. declared unserviceable. blended within limits. left for up to 12 months.

On propeller securing plates circlips should be. used once only. annealed and the springiness put back into the circlip before it can be used again. used again as long as the circlip springs back first time.

The ground fine pitch stop is. removed on the ground. removed during flight. never removed.

If the TAS of an aircraft increases, the CSU (constant speed unit) will. increase the blade angle to provide constant RPM. increase or decrease the blade angle to provide constant RPM. decrease the blade angle to provide constant RPM.

Propeller anti-icing operates at which of the following temperatures?. +10oC to -6oC. Below 0oC. +6oC.

As a propeller blade moves through the air, forces are produced, which are known as. thrust and torque. lift and drag. lift and torque.

How is the power output of a turbo prop engine assessed?. By comparing torquemeter pressure against a reference figure. By comparing compressor and propeller RPM against a reference figure. By correcting propeller RPM for ambient Air temperature and barometric pressure.

On an underspeed condition the blades are turned to. fine. feather. coarse.

Which tapered cone are split in half with serial numbers?. Rear. Both front and rear. Front.

If a 2 blade prop is placed on a knife edge and it ends up horizontal (blades at 3 and 9 o’clock positions), it is said to be in balance. horizontally. dynamically. vertically.

PCU (Propeller Control Unit) hydraulic system is supplied with oil from the. engine lubrication oil tank. PCU oil tank. aircraft hydraulic system.

CTM will. turn the blade about the pitch change axis. cause the tips to rotate at supersonic speeds. try to bend the blade away from the engine.

For feathered propeller. the blade angle is close to 90 degrees. the angle of attack is close to 90 degrees. the blade angle is close to 0 degrees.

If, in pre-entering preservation, a defect is found on a propeller, this defect is rectified. before entering preservation. after leaving preservation, before entering service. after preservation, but before leaving preservation.