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PSA > ORAL PREP > Flashcards

ORAL PREP Flashcards

1
Q

What is the Volts AC, phase and Hz of the (2) engine driven generators?

A

115V AC, 3 phase, 400hz

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2
Q

What KVA are the IDG’s?

A

30KVA up to FL 350.

From FL 350 to FL360 25 KVA

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3
Q

What does the Constant Speed Drive (CSD) do?

A

turn a constant RPM to produce the steady 400Hz

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4
Q

The AC utility bus provides AC power to the____and____.

A

galley

battery chargers

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5
Q

In certain conditions, AC UTIL BUS 1 and AC UTIL BUS 2 are shed to prevent overloading of a single generator when?

A

With only one generator operating or flaps out of 0 degree position

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6
Q

ADG will supply how much Volts AC, Hz and KVA?

A

115Vac, 400 Hz, 15 kVA

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7
Q

What are the (3) sources of DC power?

A
  • DC Transformer rectifier units (TRU’s)
  • DC batteries
  • External DC power
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8
Q

Where are the TRU’s located?

A

Unpressurized equipment compartment in the nose of the aircraft.

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9
Q

What are the Voltage and Amps of the TRU’s

A

28V, 100 amps

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10
Q

Where are the DC batteries located and how many amps and volts are they?

A

aft equipment compartment,
APU BATT 43 Amps 24V
MAIN BATT 17 Amps 24V

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11
Q

Minimum volts for APU and Main battery is?

A

22Volts

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12
Q

DC Switch supplies power to and connects what

A

NAV, LAV and DOM

Connects the DC SERV BUS to the APU and MAIN BATT DIR BUS

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13
Q

If SERV TRU and TRU 1 and 2 fail what powers the DC battery BUS?

A

APU/MAIN BATT DIR BUS

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14
Q

During ADG operations, the_____ powers_____ which in turn powers the____.

A

AC ESS BUS
ESS TRU 1
DC BATT BUS

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15
Q

What happens when BATTERY MASTER is selected on

A

Connects the APU & MAIN BATTERY DIR BUSES to the DC BATTERY BUS

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16
Q

Describe the DC EMER BUS

A 
It provides power to the:
L&R Engine and APU fire bottle squibs
L&R Engine HYD SOV's
L&R Engine and APU fuel SOV's
EMS lights
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17
Q

What activates the FDR

A

BEACON or STROBES on

Weight of Wheels

18
Q

When are fuel boost pumps on

ELF

A

Engine Start
Low fuel pressure
Failure of Main Ejector Pump

19
Q

L/R BOOST PUMP is powered by

A

L- DC BATT BUS

R-DC BUS 2

20
Q

INOP will illuminate on fuel boost pumps when

A

Low pump pressure
Pump has failed
Pump not armed

21
Q

When does fuel auto transfers happen

2 types

A

200 LBS difference in tanks. If occurs will add fuel to lower wing until 50 LBS over
With fuel in center tank and 94% detected will fill back to 100%

22
Q

What is min fuel needed for takeoff alternate

A

4600 lbs due to flap AD

23
Q

What’s needed for auto pilot to operate

A

1 yaw damper
Both fcc serviceable
At least 1 stab channel and no faults with pitch trim
No insignificant stability

24
Q

What is in the Accessory Gear box

AAAEEE

A

Driven by the N2 compressor and consists of:
Associated AC IDG
Air Turbine Starter
Alternator that powers the N1 Control Amplifier
Engine oil pump
Engine driven HYD pump
Engine driven Fuel pump

25
Q

What powers the ignitors A and B

A

A- AC ESS BUS

B-DC BATT BUS through a static inverter

26
Q

What does N1 gauge represent

A

N1 represents the rotational speed of the low pressure compressor

27
Q

What does N2 gauge represent

A

N2 represents the rotational speed of the high pressure compressor

28
Q

Pulling the ADG Manual Deploy Handle ties

A

The DC Essential Bus to the Battery Bus. This provides
power to the DC Essential Bus when the ADG is no
longer at an operating speed.
• This provides continued control of Thrust
ReversersCaptain’s Instruments* upon landing / go
around / continued flight.

29
Q

Fuel Control Unit (FCU)

A

A hydro mechanical metering device that supplies fuel in response to mechanical commands from the thrust levers.

30
Q

Describe N1

A

Single stage fan rotor connected to a 4 stage low pressure turbine

31
Q

Describe N2

A

14 stage Axial flow compressor rotor connected to a 2 stage high pressure turbine

32
Q

The APR system is armed during Takeoff when

A

Weight off Wheels
APR switches are armed
Engine speed switches are selected on
Both DCU’s are operating
On T/O roll above 79% RPM APR is activated for five mins. APR system monitors N1 RPM of both engines. If RPM of 67.6 or less is detected APR automatically commands both engines to increase N1 speed, only the operating engine will increase.
Increases thrust to 9220 pounds of thrust (approx 2%)

33
Q

How many PCU’s are associated to

Rudder, Ailerons and Elevators

A

Rudder and Elevator has 3 PDU’s

Ailerons have 2

40
Q

Ram air is used for for

A

Cooling of PACKs and Heat exchangers
Cooling HYD 1 and 2
Used for T/o and Lndg with Anti-ice on and APU differed
to evacuate the cockpit of smoke and fumes
On ground a small fan is used to draw air to assist in cooling

41
Q

Shortest RWY an FO can land on

A

Greater than 5000 feet

42
Q

What three oral warnings the DCU will not inhibit

A

Terrain
Windshear
EGPWS

43
Q

Primary Flight Controls

EARS

A

Elevators
Ailerons
Rudders
Spoilerons

44
Q

Secondary Flight Controls

HARFF

A 
Horizontal Stabilizer Trim 
Aileron Trim
Rudder Trim
Flight and Ground Spoilers
Flaps
46
Q

APU will shut down in flight for the following

FODERS

A 
Fire
Overspeed
DC power loss
ECU failure
RPM signal loss
Slow/abnormal start
47
Q

1/2 bank automatically comes on when

A

31,600 feet

48
Q

The Captain will conduct the takeoff (ground roll through clean-up) when visibility is:

A
  • 1600 ft RVR or less for any RVR on that runway

* 1/4 statute mile or less (if no RVR is reported for that runway).

PSA (4 decks)

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