CRJ900 Systems Questions Flashcards

1
Q

Maximum APU bleed air extraction altitude is

A

25,000 FT

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2
Q

What is the maximum available steering with using only the rudder pedals

A

8 degrees

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3
Q

Which of the doors are not depicted on the EICAS DOOR synoptic page

A
  1. Crew escape hatch

2. Aft equipment door

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4
Q

The 5 rechargeable battery packs provide power to the emergency lights for

A

10 minutes

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5
Q

“Too Low Gear” will sound with the landing gear retracted and radar altitude

A

< 500 AGL and < 190kts

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6
Q

The ADG (Air Driven Generator) is rated at

A

15KVA, 115V(AC), 400Hz

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7
Q

What is the main function of the IDG

A

Convert variable N2 speed to constant 12000 rpm

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8
Q

What are the TRU’s rated at

A

120 amps

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9
Q

How much thrust is provided from the bypass air (N1)

A

80%

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10
Q

The outflow valve has ____ electric motors

A

3

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11
Q

The FADAC alternator will supply electrical power to both channels above

A

50% N2

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12
Q

What is the maximum altitude operating with a single PACK

A

FL 25,000

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13
Q

____ provide lateral control with assistance of the MFS’s

A

Ailerons

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14
Q

The maximum fuel capacity using gravity fueling is

A

14810 lbs

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15
Q

The passenger oxygen system provides ____ minutes of oxygen

A

13

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16
Q

In icing conditions, the ice detector probes will heat up for ____ seconds during a ____ second period

A

5

60

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17
Q

There are ____ smoke detectors in the FWD cargo compartment and ____ smoke detectors in the AFT cargo compartment

A

3

2

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18
Q

The outboard brakes are supplied by

A

Hydraulic system 2

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19
Q

The FADAC will not provide protection for… (During an engine start)

A

Dry motoring

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20
Q

During a normal start, the start will cut out at

A

50% N2

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21
Q

How is a cowl duct leak detected

A

Pressure transducer

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22
Q

Hydraulic pumps 1B and 2B will operate when

A
  1. There respective buses are powered
  2. Any generator operating
  3. Flaps out of zero degrees
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23
Q

When operating in icing conditions and both wing and cowl anti-ice is selected on, the ICE caution message will become green ICE advisory message when

A

Wing leading edge is greater than 39c

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24
Q

With the APU door open and the APU not operating, maximum airspeed is restricted to

A

220 kts

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25
How many outflow valve(s) are there
1
26
The APU battery is rated at
43 ampere hour, 24 volt
27
During engine start, FADAC will provide protection for
Hot Start | Hung Start
28
The nose wheel steering system provides ____ degrees of steering
80
29
How many APU start attempts can be made in 1 hour
3 (Two minute delay between each try)
30
Visible moisture can be defined as
1. Fog (1 mile or less) 2. Standing water 3. Rain 4. Snow 5. Sleet 6. Ice crystals
31
In a PCU runaway situation (bungee breakout) the SSCU will provide
automatic onside MFS control
32
The total fuel capacity using pressure refueling is
19,594 (7492 each wing, 4610 center)
33
The maximum fuel imbalance for takeoff is
300 lbs
34
The purpose of the HYD SOV switch light is
to stop the flow of Hydraulic fluid to EDP 1A or 2A
35
Regarding cargo bay fire protection, the large fire bottle will deplete slowly over
60 minutes
36
The maximum load capacity for the main passenger door is
1. 1000 lbs | 2. 4 People
37
The minimum battery voltage for an APU start is
22 volts
38
What is the purpose of the HPV
to provide high pressure 10th stage bleed air if required
39
When will the APR (Automatic Performance Reserve) activate on takeoff
During an engine failure and FADAC senses a mismatch of 15% N1 between two engines
40
During emergency power (ADG) hydraulic pump
3B will turn on automatically regardless of switch position
41
The engine fuel temperature must be ____ or warmer for takeoff
5c
42
The engine fire bottles are pressurized to ____ psi with dry nitrogen
600
43
The core air provides approximately ____% of the thrust
20
44
How many types of aural WARNINGS are provided to the flight crew
10
45
The rudder is powered by ____ PCU's
3
46
Is the Yaw Damper controlled by the auto pilot system
No it’s controlled by the fcc
47
The fire protection system is powered by the
DC emergency BUS
48
The AVAIL illumination on the AC External Power switch light indicates
Correct voltage, frequency, and phase
49
In flight what situation will cause the ADG to auto-deploy
Complete loss of AC Bus 1 and 2 | Complete loss of AC power
50
The three subsystems of the FADAC consists of
1. fuel control 2. compressor airflow management 3. engine starting / ignition control
51
If the ground valve fails to fully close after the main cabin door is closed an ____ message is displayed
OVBD COOL
52
Maximum pressure relief differential is
8.7 psi
53
A CABIN ALT warning with "Cabin pressure" aural warning will be generated when the cabin altitude exceeds
10,000 ft
54
The green line on the airspeed tape indicates
1.27 Vs (not accurate at high altitudes)
55
Engine oil is cooled by
Fuel/Oil heat exchanger
56
With the horizontal stabilizer in motion for more than ____ the clacker will sound
3 seconds
57
The weather radar danger area when in the "ON" position is
2 ft
58
The highest priority when trimming the horizontal stabilizer is
The captain In order captain, fo, autopilot, Mach trim
59
The APU fuel source comes from the
Left collector tank
60
The pressurization system automatically pre-pressurizes the aircraft to
-150 ft