All

Question 1

Centrifugal flow compressor

Answer 1

Air is forced centrifugally outward into a diffuser

Question 2

Diffuser

Answer 2

After compressor and before combustion, reduces high velocity compressor discharge air to a slower velocity. Prepares air for entry into combustion

Question 3

axial flow compressor

Answer 3

rotor and stator, rotor sends air rearward and stator blades act as diffusers

Question 4

EPR

Answer 4

Engine pressure ratio- turbine discharge to compressor inlet pressure

Question 5

Itt

Answer 5

temp of air btwn high and low pressure turbine wheels

Question 6

n1

Answer 6

Low pressure compressor

Question 7

n2

Answer 7

high pressure compressor

Question 8

What effects performance of a turbine eng

Answer 8

Air density and temperature

Question 9

Fuel control unit

Answer 9

FADEC, DEEC, Hydromechanical are examples. They meter the appropriate amount of fuel to the eng based on temp, lever position, eng rpm

Question 10

How to prevent ice crystals in fuel

Answer 10

Oil to fuel heat exchanger and fuel air heat exhangers

Question 11

Collector tank

Answer 11

tank within a tank. makes sure there is an adequate supply of fuel to eng

Question 12

Motive flow

Answer 12

Result of a pump producing fuel pressure via a venturi

Question 13

wet vs dry sump oil

Answer 13

Wet is when oil is stored in the eng, dry is when oil is stored somewhere else

Question 14

What part of the eng is the most critical to be lubricated

Answer 14

Exhaust turbine bearing due to the really hot temps

Question 15

Hydraulic accumulator

Answer 15

Nitrogen stored under pressure to drive hydraulic fluid for shock absorption to provide additional hydraulic fluid

Question 16

Hydraulic actuator

Answer 16

Transforms energy in the form of fluid pressure to mechanical movement

Question 17

Pump cavitation

Answer 17

When air enters hydraulic lines. Can cause pump to overheat and eventually fail

Question 18

lead acid battery

Answer 18

in discharging, chemical energy is turned into electrical energy, In charging, vice versa

Question 19

Generator

Answer 19

Device that converts mechanical energy to electrical energy by electromagnetic induction

Question 20

GCU

Answer 20

Controls start
overvoltage protection
parallels the gens
fault protection

Question 21

Inverter

Answer 21

Converts DC to AC power.

Question 22

Advantages of ac over dc

Answer 22

Transmitted over longer distances.
more economic
space and weight saved.

Question 23

Bus tie

Answer 23

Connects elecctrical buses, isolates buses,
and can redirect power so one bus can power entire system

Question 24

Diode

Answer 24

Allows current to flow in one direction only. Electronic check valve

Question 25

Hot battery bus

Answer 25

bus that is connected directly to the battery.

Question 26

transformer

Answer 26

Changes electical energy of a given voltage into a diff voltage.

Question 27

Relay

Answer 27

Remote control of circuits carrying heavy currents.

Question 28

Solenoid

Answer 28

Electric switch with a moveable core.

Question 29

Circuit breaker

Answer 29

Designed to break the Circuit and stop current flow when currecnt exceeds

Question 30

Fuse

Answer 30

Strip of metal that will melt when current in excess of its capacity flows through it

Question 31

Current limiter

Answer 31

Sectionalize an aircraft circuit

Question 32

Volts

Answer 32

potential electric force (water pressure)

Question 33

Current

Answer 33

Rate at which charge is flowing (flow rate)

Question 34

Amps

Answer 34

Rate of electron flow

Question 35

Diluter demand

Answer 35

Only when user inhales. Has regulators that automatically mix cabin air and oxg.