Learjet 20 Series Pilot Training Manual page 110

1. Approximately 23 gallons of fuel in the
20 series is trapped. This fuel weight:
A. Must be added to the weight of fuel
taken on board when servicing the
airplane
B. Is included in the airplane basic
weight for airplanes certified in the
United States
C. Must be accounted for in the fuse-
lage tank for CG purposes
D. May be disregarded since it is less
than 200 pounds
2. With the exception of the FUEL JTSN
lights, all other amber lights on the fuel
control panel, when illuminated steady,
indicate that the respective:
A. Valves are cycling or the pumps are
properly operating.
B. Valves are in the correct position;
the pumps are inoperative.
C. Switch position agrees with the
valve position or pump operation.
D. Valve position disagrees with the
switch position.
3. The red LOW FUEL light illuminates
when:
A. 350 pounds total fuel remains.
B. 250 to 350 pounds remain in either
wing, depending on the airplane SN.
C. 400 to 500 pounds total fuel remains.
D. 400 to 500 pounds remain in either
wing.
4. The wing standby pumps are used for
all the following functions except:
A. Engine start
B. As a backup for the main jet pumps
C. Fuselage-to-wing fuel transfer
D. Wing-to-fuselage transfer of fuel
LEARJET 20 SERIES PILOT TRAINING MANUAL
QUESTIONS
FOR TRAINING PURPOSES ONLY
5. The crossflow valve opens:
A. Only when the CROSS FLOW
switch is set to OPEN
B. Only when the CROSS FLOW
switch is set to OPEN or the
XFER–FILL switch is set to XFER
C. Anytime electrical power is lost
D. Whenever the CROSS FLOW,
XFER–FILL, or FUS VALVE
switches are moved from the OFF or
CLOSED position
6. Steady illumination of an amber trans-
fer valve light indicates:
A. The valve has failed closed.
B. The valve has failed open.
C. The valve has stuck in an intermedi-
ate position.
D. The valve has failed to move to the
position commanded by the
XFER–FILL switch.
7. Illumination of the red L or R FUEL
PRESS light indicates:
A. Fuel pressure to the respective en-
gine-driven fuel pump is low.
B. Fuel pressure to the respective en-
gine is too high for safe operation.
C. A fuel filter is bypassing.
D. Fuel pressure to the respective en-
gine is optimum for engine start.
8. When the XFER–FILL switch is placed
to the FILL position, the:
A. Float switch is disabled.
B. Wing standby pumps are disabled.
C. Fuselage valve closes.
D. Crossflow valve opens.
FlightSafety
international
5-19