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CRJ-900 Mesa CL-65 Study - Updated To Latest Study Guide (Feb 3rd 2023) > CRJ900 Systems Questions > Flashcards

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 31,000

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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
Q

How many outflow valve(s) are there

A

1

26
Q

The APU battery is rated at

A

43 ampere hour, 24 volt

27
Q

During engine start, FADAC will provide protection for

A

Hot Start

Hung Start

28
Q

The nose wheel steering system provides ____ degrees of steering

A

80

29
Q

How many APU start attempts can be made in 1 hour

A

3 (Two minute delay between each try)

30
Q

Visible moisture can be defined as

A
  1. Fog (1 mile or less)
  2. Standing water
  3. Rain
  4. Snow
  5. Sleet
  6. Ice crystals
31
Q

In a PCU runaway situation (bungee breakout) the SSCU will provide

A

automatic onside MFS control

32
Q

The total fuel capacity using pressure refueling is

A

19,594 (7492 each wing, 4610 center)

33
Q

The maximum fuel imbalance for takeoff is

A

300 lbs

34
Q

The purpose of the HYD SOV switch light is

A

to stop the flow of Hydraulic fluid to EDP 1A or 2A

35
Q

Regarding cargo bay fire protection, the large fire bottle will deplete slowly over

A

60 minutes

36
Q

The maximum load capacity for the main passenger door is

A
  1. 1000 lbs

2. 4 People

37
Q

The minimum battery voltage for an APU start is

A

22 volts

38
Q

What is the purpose of the HPV

A

to provide high pressure 10th stage bleed air if required

39
Q

When will the APR (Automatic Performance Reserve) activate on takeoff

A

During an engine failure and FADAC senses a mismatch of 15% N1 between two engines

40
Q

During emergency power (ADG) hydraulic pump

A

3B will turn on automatically regardless of switch position

41
Q

The engine fuel temperature must be ____ or warmer for takeoff

A

5c

42
Q

The engine fire bottles are pressurized to ____ psi with dry nitrogen

A

600

43
Q

The core air provides approximately ____% of the thrust

A

20

44
Q

How many types of aural WARNINGS are provided to the flight crew

A

10

45
Q

The rudder is powered by ____ PCU’s

A

3

46
Q

Is the Yaw Damper controlled by the auto pilot system

A

No it’s controlled by the fcc

47
Q

The fire protection system is powered by the

A

DC emergency BUS

48
Q

The AVAIL illumination on the AC External Power switch light indicates

A

Correct voltage, frequency, and phase

49
Q

In flight what situation will cause the ADG to auto-deploy

A

Complete loss of AC Bus 1 and 2

Complete loss of AC power

50
Q

The three subsystems of the FADAC consists of

A
  1. fuel control
  2. compressor airflow management
  3. engine starting / ignition control
51
Q

If the ground valve fails to fully close after the main cabin door is closed an ____ message is displayed

A

OVBD COOL

52
Q

Maximum pressure relief differential is

A

8.7 psi

53
Q

A CABIN ALT warning with “Cabin pressure” aural warning will be generated when the cabin altitude exceeds

A

10,000 ft

54
Q

The green line on the airspeed tape indicates

A

1.27 Vs (not accurate at high altitudes)

55
Q

Engine oil is cooled by

A

Fuel/Oil heat exchanger

56
Q

With the horizontal stabilizer in motion for more than ____ the clacker will sound

A

3 seconds

57
Q

The weather radar danger area when in the “ON” position is

A

2 ft

58
Q

The highest priority when trimming the horizontal stabilizer is

A

The captain

In order captain, fo, autopilot, Mach trim

59
Q

The APU fuel source comes from the

A

Left collector tank

60
Q

The pressurization system automatically pre-pressurizes the aircraft to

A

-150 ft

CRJ-900 Mesa CL-65 Study - Updated To Latest Study Guide (Feb 3rd 2023) (33 decks)

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