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Mesa > Starter - Oil System - Fuel System - AC/Pressurization > Flashcards

Starter - Oil System - Fuel System - AC/Pressurization Flashcards

1
Q

What are the engine starter cranking limits?

A

1st and 2nd attempt
90 sec ON – 10 sec. OFF

3rd thru 5th attempt
90 sec ON – 5 min. OFF

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2
Q

What are the Dry Motoring limits?

A

1st attempt: 90 sec. ON – 5 min. OFF

2nd thru 5th attempt: 30 sec. ON – 5 min. OFF

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3
Q

What are the APU Starter limits?

A

No more than three start attempts in one hour,

2 minute delay required between start attempts.

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4
Q

Min Oil Temperature for start?

A

-40°C

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5
Q

Max Continuous Oil Temperature?

A

155°C

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6
Q

Max Permissible Oil Temperature?

A

163°C (15 minutes max)

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7
Q

Max Oil Consumption?

A

0.05 gallons/hr

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8
Q

Where do we check the oil quantity?

A

On the EICAS menu page

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9
Q

When should the Oil Capacity be checked?

A

3 minutes to 2 hours after shutdown

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10
Q

When should the Engine Oil level be replenished?

A

15 minutes to 2 hours after shutdown

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11
Q

Max refill without dry motoring?

A

2 quarts

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12
Q

How is the oil cooled?

A

Fuel/oil heat exchanger

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13
Q

What is the total quantity of the engine oil tanks?

A

7.2 quarts

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14
Q

How is the fuel moved from the center tank to the main tanks?

A

transfer ejectors

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15
Q

How is the fuel moved from the main tanks to the collector tanks?

A

scavenge ejectors

gravity line used as a backup

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16
Q

How is the fuel moved from the collector tanks to the engine driven high pressure fuel pump?

A

main ejectors

backed up by boost pumps

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17
Q

What is the function of the electric boost pumps?

A

To provide initial fuelmfor engine start and

to back-up the main ejectors

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18
Q

What is the flight deck indication of a high pressure fuel pump failure?

A

Engine flameout

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19
Q

What is the maximum fuel imbalance?

A

300 lbs for takeoff

800 lbs for all other phases

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20
Q

When will the fuel system automatically begin transferring fuel?

A

200 lb fuel imbalance

21
Q

When are the boost pumps automatically energized?

A

Low pressure from the main ejectors

if the pumps are armed

22
Q

Where is the high pressure fuel pump located?

A

N2 accessory gearbox

23
Q

Where is bulk fuel temperature taken?

A

right main tank

24
Q

What is the Minimum Bulk Fuel Temp for take-off (Jet A)?

A

-30°C

25
Q

What is the minimum bulk fuel temp during flight (Jet A)?

A

above -40°C

26
Q

How is engine fuel heated?

A

Fuel/oil heat exchanger

27
Q

What is the minimum engine fuel temperature for takeoff?

A

+5°C

28
Q

What is the takeoff limitation if the center tank has > 500 lbs of fuel?

A

Each main tank must have > 4400 lbs

29
Q

Which Bus powers the refuel/defuel panel and refuel/defuel SOVs?

A

APU Battery Direct Bus

30
Q

Where is the refuel/defuel panel located?

A

The fuselage forward of right wing

31
Q

Where is the single point adapter located?

A

Right wing root

32
Q

Normal pressure differential is?

A

8.5 psi

33
Q

Max pressure differential is?

A

8.7 psi

34
Q

Max pressure differential during taxi, takeoff and landing?

A

0.1 psi

35
Q

Max negative pressure differential?

A

-0.5 psi

36
Q

During single PACK operation, what is the max altitude?

A

CRJ 900/900EP: FL 250

CRJ 700: FL310

37
Q

What does the DISPLAY COOL or ARINC COOL Caution messages mean?

A

Low airflow behind screens or within the avionics rack

38
Q

How many pressurization controllers are installed on the CRJ 900?

A

2, PC1 and PC2

39
Q

When do the pressurization controllers swap?

A

weight on wheels plus 3 minutes or

if one PC fails, the redundant controller takes over

40
Q

When operating in the auto mode, what is the cabin rate of climb and descent?

A

500 fpm climb

300 fpm descent

41
Q

When operating in the manual mode, what range is controlled by the MAN RATE knob?

A

50 fpm to 3000 fpm ± 1000 fpm

42
Q

When will the primary page indicate a CABIN ALT Caution message?

A

Cabin altitude between 8,500 and 10,000 ft

43
Q

When will the primary page indicate a CABIN ALT Warning message?

A

Cabin altitude >10,000 ft

44
Q

When will CPAM automatically deploy the passenger oxygen masks?

A

Cabin altitude >14,000 ft

45
Q

When will CPAM turn on the NO SMOKING/FASTEN SEATBELT signs?

A

Cabin altitude >10,000 ft

with switches in the AUTO position

46
Q

Can we carry live animals in the cargo compartment of the CRJ 900?

A

Yes, Aft cargo compartment only.

47
Q

What causes the FAULT portion of a PACK switchlight to illuminate?

A

Over pressure or

Over temperature condition

48
Q

What causes the FAULT portion of the PRESS CONT switchlight to illuminate?

A

Both pressurization controllers have failed.

Mesa (7 decks)

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