SYS103

Question 1

The engine cowling performs what functions?

Answer 1

It protects the engine and components, decreases drag, and provides an inlet for the engine.

Question 2

The purpose of the inertial separator is to:

Answer 2

Keep debris away from the engine.

Question 3

Are the compressor and power turbines physically connected?

Answer 3

No they are not.

Question 4

What three elements are necessary for engine operation, and what provides each?

Answer 4

Air - Inlet
Fuel - FMU
Heat - Spark Igniters

Question 5

Does the exhaust provide extra thrust?

Answer 5

Yes, it provides some thrust.

Question 6

What position is the starter switch in that automatically energizes and de-energizes the igniters for engine start?

Answer 6

AUTO/RESET

Question 7

The primary purpose of the ignition system is to:

Answer 7

Ignite the air and fuel mixture in the combustion chamber.

Question 8

Friction control settings made to the from PCL affect the rear PCL. (T/F)?

Answer 8

True

Question 9

When starting the T-6A, the PCL should be in the:

Answer 9

Start ready position

Question 10

The PMU is located:

Answer 10

underneath the engine, in the accessory compartment.

Question 11

The PMU performs what functions?

Answer 11

Maintains operating limits
Processes power requests
Controls the engine and propeller
Provides a near linear power response

Question 12

The PMU STATUS annunciator light illuminates after landing when the PMU:

Answer 12

needs maintenance

Question 13

After engine start, the starter becomes a:

Answer 13

generator

Question 14

The MANUAL starter switch position will be used under normal circumstances. (T/F)?

Answer 14

False

Question 15

If oil pressure is _______ psi or below at IDLE power, the red OIL PX annunciator will illuminate.

Answer 15

15

Question 16

If oil pressure remains between 15 and 40 psi at IDLE power for more than 5 seconds, _________ will be illuminated.

Answer 16

both the amber and red OIL PX annunciators

Question 17

The oil system provides filtered oil to which systems?

Answer 17

The propeller, reduction gears, and engine.

Question 18

The chip detector sensor is located in the:

Answer 18

reduction gearbox

Question 19

The reduction gearbox reduces engine output from _____ RPM to propeller speeds of ______ RPM.

Answer 19

30,000, 2000

Question 20

The phase shift torque probe monitors:

Answer 20

propeller speed (Np) and Torque

Question 21

The PIU

Answer 21

regulates oil pressure to the pitch change mechanism

Question 22

If the propeller pitch change mechanism loses oil pressure, the propeller will automatically move towards:

Answer 22

the feathered position

Question 23

Varying level of thrust are achieved by changing:

Answer 23

propeller pitch

Question 24

If the oil filter gets clogged,

Answer 24

the system uses unfiltered oil

Question 25

The PMU

Answer 25

keeps the engine and propeller within operating limits

Question 26

In straight and level flight for PCL positions above IDLE, the oil pressure should be maintained between:

Answer 26

90 and 120 psi

Question 27

The phase shift torque probe is located

Answer 27

in the reduction gearbox

Question 28

Propeller pitch refers to:

Answer 28

the angle of the propeller blades

Question 29

Which propeller position produces the least amount of drag?

Answer 29

Feathered

Question 30

The propeller pitch change mechanism is able to change propeller blade angle by using:

Answer 30

oil pressure

Question 31

The PMU directs the PIU to maintain propeller RPM at

Answer 31

2000 RPM

Question 32

The power turbine is driven by:

Answer 32

expanding gases

Question 33

During aerobatic flight, oil pressure should be maintained at or above:

Answer 33

40 psi