Fuel

Question 1

primary fuel

Answer 1

jp4

Question 2

alternate fuel

Answer 2

jp5

Question 3

actual fuel

Answer 3

jp8

Question 4

emergency fuel

Answer 4

av gas for 50 hours cumulative on engine

Question 5

fuel capacity

Answer 5

206.5 usable, 208.5 max

Question 6

quantity indicated how?

Answer 6

one transmitter in aft center fuel cell, two in right underfloor cell (one on either side of baffle)

Question 7

describe low level float switch

Answer 7

left side, indicates low fuel state, between 130 and 240 lbs

Question 8

boost pumps

Answer 8

supply fuel under pressure to engine driven fuel pump. one in each underfloor cell. electrically operated. rated at 8-25 psi.

Question 9

ejector pumps

Answer 9

pump fuel over baffles from front to rear to supply boost pumps in all attitudes

Question 10

manifold assembly

Answer 10

2 lines in, 1 line out

Question 11

main fuel shutoff valve

Answer 11

electrically operated. manual override behind aft access panel

Question 12

fuel filter light

Answer 12

clogged or impending bypass. land asa practical

Question 13

components of FCU

Answer 13

metering section, computing section, overspeed governor driven proportion to Nf

Question 14

engine driven fuel pump

Answer 14

dual element w/i fcu. either element can sustain engine operation. land asa possible if one fails though. work below 4600 ft

Question 15

what happens when you pull starter trigger?

Answer 15

igniter solenoid, starter generator, starting fuel solenoid valve activated

Question 16

start fuel switch

Answer 16

opens starting fuel solenoid valve. turn off at 500 C

Question 17

main fuel switch

Answer 17

boost pumps, main fuel valve

Question 18

Linear actuator and droop cam

Answer 18

incr-dncr switch. controls Nf rpm between 6000 and 6700

Question 19

droop cam compensator

Answer 19

holds Nf at plus/minus 1%. “cruise control”

Question 20

gov switch - emer power reduction

Answer 20

11-15%

Question 21

how many atomizers?

Answer 21

22

Question 22

primary fuel at what Ng?

Answer 22

8-12%

Question 23

secondary fuel at what Ng?

Answer 23

28-32%

Question 24

dump valve opens when?

Answer 24

<6psi

Question 25

change over solenoid valve

Answer 25

allows selection of automatic or emergency modes