CORRECT & 100% VERIFIED ANSWERS|ALREADY
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The APU and EPU supply electrical power to the __________ of the aircraft, respectively.
a) right and left sides
b) left and right sides
c) forward and aft ends
d) aft and forward ends Correct answer-b) left and right sides
Crewmembers should silence any aural warning as soon as the cause of the warning is recognized.
True
False Correct answer-True
The transformer/rectifiers perform the function of
a) providing power for APU start.
b) converting DC power to AC power.
c) providing emergency power for the DC buses.
d) converting AC power to DC power. Correct answer-d) converting AC power to DC power.
When using the DC electrical system, the __________ configuration is the normal mode for
operation.
a) split-parallel
b) conversion
c) isolated
d) parallel Correct answer-a) split-parallel
Which generator buses are the normal sources of power for the battery chargers?
a) 2 & 3
b) 1 & 2
c) 1 & 4
d) 2 & 4 Correct answer-c) 1 & 4
Which of the following buses is always powered even if the battery switch is OFF?
a) Emergency power bus
b) Battery direct bus
c) AC transfer bus
d) DC transfer bus Correct answer-b) Battery direct bus
Which position of the avionics bus switch (AV BUS) enables automatic load shedding when the
aircraft is on the ground with inadequate cooling?
a) ORIDE
b) OFF
,c) AUTO
d) OPEN Correct answer-c) AUTO
Which component(s), during emergency/backup system operations, converts DC power into AC
power for the AC emergency bus?
a) Static inverter
b) Battery chargers
c) Emergency power relay
d) AC and DC transfer buses Correct answer-a) Static inverter
Power for the backup emergency system is provided by the
a) electrical power unit.
b) auxiliary power unit.
c) aircraft batteries.
d) integrated drive generators. Correct answer-c) aircraft batteries
What should be done if the battery bus fails?
a) Land as soon as possible
b) Recycle the right generator tie bus
c) Continue to flight destination
d) Recycle the battery switch Correct answer-a) Land as soon as possible
If a GEN OIL caution message appears on the WAP, the corrective action is to
a) increase power on that engine to promote cooling.
b) reduce the electrical load on that generator bus.
c) place that engine in reverse idle to cool the generator.
d) turn the generator off. Correct answer-d) turn the generator off.
If all generators fail, what becomes inoperative with a subsequent failure of one of the remaining
flight control computers (FCC 1 or 4) or IRUs (1 or 4)?
a) Flaps
b) Landing gear
c) Mission computer
d) Yaw damping Correct answer-d) Yaw damping
When performing the Electrical Fire and Smoke checklist,
a) pause after each step which depowers a portion of the aircraft.
b) do each step in rapid succession.
c) wear asbestos gloves at all times.
d) never pull out any circuit breakers. Correct answer-a) pause after each step which depowers a
portion of the aircraft.
The engine-driven hydraulic pumps provide continuous hydraulic pressure of _____________ psi.
a) 4,000
b) 4,200
,c) 4,500
d) 5,000 Correct answer-a) 4,000
The engine-driven hydraulic pumps are located in the
a) respective engine accessory gear box.
b) right aft gear pod.
c) wheel wells.
d) cargo compartment. Correct answer-a) respective engine accessory gear box.
There is/are _______ engine driven hydraulic pump(s) per system, located on and driven by their
respective engine accessory gearbox.
a) one
b) two
c) three
d) four Correct answer-b) two
The primary purpose of the _____ pump is to assist in landing gear retraction or cargo door/ramp
closing in the event of No. 2 or 3 engine loss.
a) auxiliary
b) transfer
c) primary
d) secondary Correct answer-b) transfer
The RAT, located in the forward right main gear pod, develops enough hydraulic pressure to control
the aircraft for
a) takeoff and refueling.
b) emergency refueling.
c) LAPES delivery.
d) all engine-out emergency. Correct answer-d) all engine-out emergency.
During ground operations, you have been using hydraulic system 1 without any engines running. The
MASTER CAUTION light comes on as well as the HYD cue light and a LOW in the Sys 1 Aux pump
switchlight. You should conclude that you have
a) low temperature in system 1.
b) asymmetric slats.
c) overpressure condition in system 1.
d) failure of AUX pump 1. Correct answer-d) failure of AUX pump 1.
Transfer pump automatic shut off may be caused by
a) a low quantity condition in System 2 or 3.
b) overpressure in System 2.
c) a low quantity condition in System 1 or 4.
d) pressure between 3400 and 4000 in System 2 or 3. Correct answer-a) a low quantity condition in
System 2 or 3.
, If the hydraulic system pressure increases above 4200 psi, depressurize
a) all PRI, SEC, and AUX HYD pumps.
b) the pumps one at a time.
c) all engine-driven pumps.
d) the transfer and auxiliary pumps Correct answer-a) all PRI, SEC, and AUX HYD pumps.
The primary source of oxygen for the crew system is _______ liquid oxygen converter(s).
a) one 25-liter
b) one 75-liter
c) two 25-liter
d) two 75-liter Correct answer-a) one 25-liter
The oxygen crossfeed switch is used to
a) connect the auxiliary system to the passenger system.
b) isolate the passenger oxygen converter.
c) isolate the crew oxygen converter.
d) connect the crew and passenger oxygen systems. Correct answer-d) connect the crew and
passenger oxygen systems.
The CREW OXY LOW warning illuminating on the WAP indicates the oxygen
a) quantity remaining is less than 5 liters or supply pressure is below 60 +/- 5 psi.
b) quantity remaining is less than 7.5 liters or supply pressure is below 75 +/- 5 psi.
c) pressure is below 75 psi.
d) pressure is above 80 psi. Correct answer-a) quantity remaining is less than 5 liters or supply
pressure is below 60 +/- 5 psi.
When positive pressure is required, the oxygen mask must be well fitted to the face to prevent rapid
depletion of the oxygen supply.
True
False Correct answer-True
During normal operation, the oxygen regulator levers will be positioned as follows:
a) SUPPLY lever - ON,
DILUTER lever - 100%,
EMERGENCY lever - Normal
b) SUPPLY lever - ON
DILUTER lever - NORMAL
EMERGENCY lever - NORMAL
c) SUPPLY lever - OFF
DILUTER lever - NORMAL
EMERGENCY lever - NORMAL
d) SUPPLY lever - OFF
DILUTER lever - 100%