Fuel Flashcards
XLS FUEL SYSTEM review
In the event of a loss of main DC power while operating in crossfeed.
A. The crossfeed valve will fail closed
B. Crossfeed will continue
C. The LO FUEL PRESS L or R annunciator will illuminate
D. The motive flow valve for the receiving side will fail open and cross feed will terminate
D
During initial engine starting the primary source for fuel pressure to the engine driven pumps is
A. Motive flow fuel pressure
B. Primary ejector pumps pressure
C. Respective side electric boost pump pressure
D. Suction pressure from the engine driven pump
C
Is the primary ejector fuel pump
A. Provide motive flow fuel pressure
B. Provide head pressure to the engine driven fuel pump
C. It provides high pressure, low volume fuel to the engine driven fuel pump
D. Is isolated in the surge tank
C
During over the wing feeling
A. Fill the wing until fuel fills the standpipe
B. It is not necessary to ground the refilling apparatus
C. Fill the wing tank until fuel reaches the bottom of the standpipe
D. None of the above
C
During initial engine start the electric boost pump is activated when the.
A. Start button is depressed
B. Throttle is advanced from cut off to idol
C. Placing the fuel Bruce switch to on
D. Fuel low pressure switch activates
A
Select the correct choice regarding single point pressure refueling
A. Immediately after fuel flow has stabilised Perform a precheck test
B. A fuel flow pre check test is not required if a partial load of fuel is desired
C. If extreme care must be observed when attaching the fueling nozzle in order not to spell fuel
D. The refuelling defueling compartment is located directly forward of the left wing
A
Opening a defuel selector lever
A. Allows defueling the corresponding wing tank
B. Prevents tea feeling the opposite wing tank
C. Prevents refilling the corresponding wing tank
D. Prevents defilling the corresponding wing tank
D
With total loss of DC power the motorised fuel crossfeed valve will
A. Fail in the open position
B. Fail in the close position
C. Fail in its present position
D. Return to a reset position
B
With the fuel boost switch in the norm position the boost pumps.
A. Will automatically activate during crossfeed
B. Will only activate during fuel crossfeed is oak cross feed
C. Will run continuously
D. Only activate during engine start
A
Is to cross feed fuel on the ground
A. The GPU is required for power because the aircraft battery must be off
B. The aircraft battery must be in the on position
C. Is impossible
D. One engine must be operating
B
What is the normal fuel transfer (X-Feed) rate on the ground without engines running?
700 lbs per hour
If you switch Fuel X-Feed Off and the Valve does not close, what will happen?
The FUEL X-FEED Annunciator Light will flash w/ Master Caution
When does the Low Level Fuel Annunciator come on?
360 +/- 20lbs
How do you know when the wings are topped off during over wing fueling?
When fuel reaches the bottom of the stand pipe
What are the refueling pressure limits (Max Defueling Pressure)?
10-55 psi (10 psi)
Which Defueling lever do you move if you do NOT want to Defuel out of a specific tank?
Move lever of the tank you do NOT want to Defuel
At 400lbs remaining in each fuel tank, what action is required?
Boost Pumps On
How much fuel is unusable?
3 gallons per side
What is the total fuel capacity for the XLS?
6,790lbs or
1,006 gallons
What type of fuel can we use?
Any type of commercially available Jet Fuel (never use AVGAS)
How is the X-Feed Valve driven
Motor driven
What happens to the X-Feed Valve if we lose Main DC Power?
It fails in present position
How is the Motive Flow valve driven?
It uses a solenoid and is spring loaded to open
Is Prist required?
No
When does the Fuel Boost Pump come on automatically while the switch is in the normal position?
APU Usage
Engine Start
X-Feed
Low Fuel Pressure
What is the Minimum Fuel Temp (Maximum)?
-40C (+57C)
What is the Maximum Fuel Altitude?
45,000’
