Block 2 Phase III - Powerplants

Question 1

What are the hazard areas around the engine?

Answer 1

Inlet and exhaust area

Question 2

What should be on any time the engines are turning?

Answer 2

Anti collision lights

Question 3

What type of engine is on the P-8A?

Answer 3

CFM56-7B
High bypass, Dual-rotor, axial flow turbo fan
27,300lbs of Thrust

Question 4

What are the 5 fuel tank groups?

Answer 4

M1
M2
Center
Fwd
Aft

And two surge tanks

Question 5

What are the 6 sections of the CFM56-7B?

Answer 5

1) Fan and Booster section
2) High Pressure Compressor
3) Combustor
4) High Pressure Turbine
5) Low Pressure Turbine
6) Accessory Drive

Question 6

Describe the purpose of the Fan and Booster section.

Answer 6

The fan and booster section increases the speed of the air to create compression.

Question 7

Describe the purpose of the High Pressure Compressor.

Answer 7

The HPC is a 9 stage compressor that sends compressed air to the combustor as well as supplies bleed air for aircraft pneumatic systems.

Question 8

Describe the purpose of the Combustor section.

Answer 8

The combustor section mixes air from the compressors and fuel from the fuel nozzles to make hot gases.

Question 9

Describe the purpose of the High Pressure Turbine.

Answer 9

The HPT converts the energy from the hot gases provided by the combustor section into mechanical energy to turn the HPC rotor and accessory drive.

Question 10

What components make up the accessory drive?

Answer 10

Inlet Gear Box (IGB)
Radial Drive Shaft (RDS)
Transfer Gear Box (TGB)
Horizontal Drive Shaft (HDS)
Accessory Gear Box (AGB)

Question 11

What is the total fuel capacity of the P8A in gallons?

Answer 11

10,856

Question 12

What makes the P8A an all weather aircraft?

Answer 12

Bleed air for thermal anti icing
Electrical anti icing
Windshield wipers

Question 13

What type of Aux Power Unit (APU) is on the P8A and what does it provide?

Answer 13

Honeywell 131-9B, Self contained gas turbine engine installed in a fireproof compartment in the tail section.

Provides the Aircraft with bleed air and electrical power

Question 14

Describe the function of the Engine Fuel and Control System.

Answer 14

The EFCS calculates the quantity of fuel necessary to make commanded thrust by metering the fuel and injecting it into the combustor. The EFCS also sends necessary fuel to the engine air system for efficient and stable operation.

Question 15

Describe the function of the Fuel Distribution System.

Answer 15

Supplies fuel to the engine for combustion and servo system operation via the Fuel Pump Assembly, the IDG oil cooler, and Servo Fuel Heater.

Question 16

What does the Fuel Indication System supply data for?

Answer 16

Fuel flow rate
Fuel used
High pressure fuel shutoff valve (HPSOV) position
Fuel Filter impending bypass warning

Question 17

Describe the function of the ignition system.

Answer 17

Supplies electrical sparks in the combustion chamber, usually operate manually but may operate automatically if the EEC senses a possible flameout condition.