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CRJ900 Systems > CRJ900 System > Flashcards

CRJ900 System Flashcards

0
Q

The APU is located ….

A

Aircraft tail cone

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1
Q

Maximum APU start Altitude is …..

A

37,000

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2
Q

What is the bleed air source for the CRJ900 air conditioning system …

A

6th and 10 th Stage

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3
Q

The airspeed trend vector indicates the predicted airspeed in:

A

10 seconds

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4
Q

Selecting the RAM AIR switch OPEN supplies ram air to…

A

Mixing Manifold

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5
Q

The lavatory FireX Bottle is discharged by:

A

Heat sensitive capsules within the discharge tubes

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6
Q

The APU battery is a:

A

43 ampere hour, 24 volt battery

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7
Q

How is the Out-Flow Valve operated?

A

Electrically

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8
Q

What happens when the LH or RH ENG Fire PUSH switchlight is pushed?

A

Engine Fire bottle squibs are armed for the associated engine
HYD SOV closes
Answer = both A and C

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9
Q

How many Outflow valve(s) are installed in the CRJ900?

A

1

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10
Q

At FL4 0 the engine driven generators are rated at…

A

40 KVA

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11
Q

The CRJ900 TRU distribution system consists of…

A

4 TRUs rated at 120 amps each

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12
Q

DC Tie Contactors….

A

Are Controlled Automatically

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13
Q

Ice Detector switchlight illuminates amber to indicate aircraft entry into icing with:

A

Wing and Cowl Anti-Ice Off

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14
Q

What type of ejector pumps are used to move fuel from the center tanks to the main tanks?

A

Transfer Ejectors

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15
Q

How many circuit breaker panels are located on the flight Deck?

A

2

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16
Q

From the list below, identify the aircraft systems NOT protected by the dual-loop Fire detection system?

A

Cargo Bays

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17
Q

The engine Low Pressure Turbine….

A

Is protected by an overheat detection system only

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18
Q

How is the Fire Detection and Extinguishing system tested?

A

Automatically when the Test Button is selected

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19
Q

What is used to back up the main ejectors?

A

Two electric boost pumps

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20
Q

Maximum 45 slats/flaps VFE speed is…

A

170 KIAS

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21
Q

Hydraulic AC motor pumps B and 2B will automatically turn on during an engine failure

A

False

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22
Q

Lift dumping is accomplished by extending…

A

Two MFS panels and two Ground Spoilers per wing

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23
Q

The main battery is a:

A

17 ampere hour, 24 volt battery

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24
Q

There are two slat positions. The intermediate position of 20 degrees is set when the….

A

SLATS/FLAPS Lever is selected to 1 & 8

25
Q

When the EMER FLAP switch is selected the ….

A

SLATS/FLAPS move to 25/20

26
Q

The Rudder Travel Limiter (RTL) restricts rudder travel…

A

In flight only

27
Q

The standby ISI is…

A

An integrated unit

28
Q

The enhanced flight director provides optimal pitch reference…

A

When TO mode is active

29
Q

When the aircraft is pressure refueled, the total usable fuel capacity for the CRJ900 is…

A

19,594 pounds

30
Q

The APU Fuel Feed System uses…

A

Dedicated APU fuel pump

31
Q

The APU in the CRJ900 gets its fuel from…

A

The left wing tank via the left Collector Tank

32
Q

The bulk fuel temperature for the CRJ900 is measured in….

A

Right Wing Tank

33
Q

The purpose of the HYD SOV switch is…

A

To stop the flow of HYD fluid to EDP 1A or 2A

34
Q

The purpose of the HYD SOV switch is…

A

To stop the flow of HYD fluid to EDP 1A or 2A

35
Q

What source of bleed air is used Anti-Icing?

A

6th or 10th Stage Bleed Air

36
Q

What does the DET TEST switch light test when pressed?

A

Ice Dectectors and Air Data Probes and Sensor heaters

37
Q

How is a Cowl Duct Leak detected?

A

Pressure Transducer

38
Q

The maximum landing gear retraction and extension speeds for the CRJ900 are….

A

200 KIAS and 220 KIAS

39
Q

The forward nose gear doors

A

Are mechanically connected to the landing gear lever

40
Q

Bleed air is taken from what stages of the engine compressor?

A

6th or 10th Stages

41
Q

How is bleed source selection controlled when in AUTO mode?

A

Automatically by the ACSC

42
Q

What is the minimum batter voltage required for APU start?

A

22 volts

43
Q

What is the purpose of the HPV?

A

To provide high pressure 10th Stage air as required

44
Q

When the parking break is applied with all hydraulic systems OFF, will the breaks hold for a prolonged period of time?

A

Yes, but only the Inboard Brakes

45
Q

The two safety valves on the aft pressure bulkhead provide:

A

Over pressure and negative pressure relief

46
Q

CF34-8C5 Takeoff and APR thrust values are…

A

1 ,560 & 14,750

47
Q

Engine N1 speed governing is a function of…

A

FADEC

48
Q

The engines may be started using an air source from the APU, ground air cart or engine cross-bleed.

A

True

49
Q

FLEX N is computed by the…

A

FMS Computer

50
Q

Prior to takeoff, normal-rated takeoff N thrust is displayed….

A

Automatically

51
Q

The CF34-8C5 thrust reverser system is operated by….

A

HYD Pressure

52
Q

The automatic performance reserve system (APR) is armed when….

A

When the engine speed is within 8% N1 RPM of scheduled take off Power

53
Q

Engine oil is cooled by:

A

Fuel/Oil Heat Exchanger

54
Q

During an engine start, the starter cuts out at:

A

50% N2

55
Q

Refilling of the engine oil may be accomplished by maintenance using the replenishment tank located in:

A

The aft equipment bay

56
Q

The CRJ900 thrust lever quadrant is equipped with detents at …

A

CLIMB, MAX PWR, TOGA

All the above

57
Q

An amber IDG Fault Switchlight and Caution message indicates:

A

Low IDG oil pressure and/or High IDG oil temperature

58
Q

The APU AVAIL switchlight illuminates to indicate:

A

The APU is ready for electrical and/or pneumatic loading

59
Q

During an engine start, what indications are needed before introducing fuel?

A

20% or greater N2 & ITT Less than 20°

Both a and b

60
Q

Passenger oxygen masks will automatically deploy if the cabin altitude exceeds?

A

14,000

CRJ900 Systems (1 decks)

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