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Worksheetscrossfeed system
Total questions: 14
Worksheet time: 7mins
what permits the feeding of engines from any main tank?
crossfeed valves
aux feed valves
the engine
the flying fuels mechanic
what are the numbers of the 4 crossfeed valves
1,2,8,9
9,10,11,12
29,29a
30,14,15,17
what type of valve is the crossfeed valves?
rotary plug
flapper
one way
just open manifold
thermal relief at what pressure
65-95 psi
11-12 psi
25-45 psi
1.5 psi
what volts does the crossfeed valve operate
75 vac
24 vdc
24 vac
90 vdc
how many aux b/p's are there?
31
4
15
16
what pressure does the aux pumps discharge at?
26-45
15-25
they don't discharge fuel
Lloyd is awesome
what power operates the aux pumps?
205 volt 3 phase, 400 hertz
180 vdc, 2 phase
24 vac
360 vdc, 3 phase
how is the aux pumps operated?
3 pos. switch on-off-dump
3 pos. switch, on-off-refuel
4 pos. switch. off-on-nuke
2 pos. switch. on-off
what pumps are externally mounted?
none all enternal
external and bladder cells
bladder cells
surge
externals
aux valves are what valves
13-16
1-4
9-12
31-33
what does the fuel flow indicator switch do?
indicates no flow/flashing amber light
annoys pilot
useless
tells how much fuel is in tank
fuels up the nuke for launch
how big is the main manifold interconnects?
3 inches
huge valves
2 inches
size of a whale
what relives pressure from the boost pump pressure checkout system
solenoid
suction from a vacuum
fuel doesn't drain
its all a hoax.
