Newton Gouge questions Flashcards
What is an IDG, what are they rated at?
Integrated Drive Generator. Primary AC power. Automatically comes online when engine is started and powers the respective AC BUS.
40 kVAT, 115 VAC, 400 Hz, 3 phase.
How would we go about disconnecting and can we reconnect?
Hold IDG in DISC position for one second. the IDG has to be r reconnected by maintenance.
When you pull the fire handles what happens?
it closes the fuel shut off valve, hydraulic and bleed air shut off valves - and cross bleed valve
Can you discharge both bottles into one engine?
yes, after you pull, you rotate the same fire handle in both positions.
What happens when we put the XFEED to LOW 1?
it turns on AC FUEL PUMP 2 and feeds it to engine 1 and engine 2.
it opens up the crossfeed valve.
cross feed valve opens first.
When do the AC pumps come on? DC pumps?
engine starting - same side AC pump turns on.
cross feed operation - cross side AC pump turns on
AC pump 2 or pump 1 if cross feed is open
APU turning on- when engine not running, DC pump is on if no AC power
what is the purpose of AC fuel pumps?
back ups to primary ejector pumps
we are cruising at FL350 and one of the FWD cargo smoke detectors detects smoke. what happens?
nothing, they have to agree
how many cargo smoke detectors are there
5
what happens when we push the ENG PUMP SHUTOFF button
isolates the EDP from the rest of the system. it keeps spinning and once it cools down (or whatever issue, we can hit the button again and reconnect)
what is the purpose of the PTU?
What is the purpose of HYD 3A?
What happens when we press the DUMP button
recirc fans turn off
packs are closed
outflow valve opens (?) and cabin is brought to 12,500’ at 2000 FPM.
can we DUMP the cabin in manual mode?
no
when would we use the ice protection ON switch
if either one or both ice detectors are failed - when icing conditions exist or are anticipated below 10 degrees C TAT with visible moisture