E8 L3 Environmentals Gauge Flashcards by Mark Yurgil | Brainscape

Q

Stage of compression tap off for wing anti-ice

A

9th stage

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Q

Normal regulated system pressure by bleed valve

A

45-60 psi

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Q

Bleed air valve driven toward closed (temperature)

A

450°F

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Q

Bleed air valve closed

A

490°F

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Q

Pre-cooler bypassed

A

<360°F

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Q

Precooler valve fully opened

A

> 425°F

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Q

Pre-cooler discharge temp OVERHEAT illuminates

A

505°F (+/-10)

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Q

FIREWALL CLOSED light illuminates

A

70-80 psig

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Q

FIREWALL CLOSED light extinguishes

A

73 (+/-1) psig

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Q

OVERPRESSURE light illuminates

A

83 (+/-2) psig

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Q

OVERPRESSURE light extinguishes

A

76 (+/-2) psig

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Q

ACM temperature output

A

35 (+3/-2) °F

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Q

35 degree control valve fully open

A

33°F

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Q

35 degree valve closed

A

38°F

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Q

Primary heat exchanger bypass valve

A

Maintain 60°F compressor inlet temp

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Q

Temp LEAK light illuminates in engine strut downstream on firewall SOV

A

310°F

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Q

Temp LEAK light illuminates anywhere along wing

A

255°F

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Q

AIR COND UNIT OFF light illuminates

A

245°F turbine inlets

Q

AIR COND UNIT OVHT light illuminates

A

335°F compressor outlets

Q

CREW/MAIN CABIN OVHT light illuminates

A

190°F

Q

MAIN CABIN ALERT light illuminates

A

220°F

Q

Normal operating range in inches of water

A

4-20 inches

Q

Minimum inches of water to open trim air valve

A

4 inches

Q

TURBO-FAN EXIT valves closed above

A

5000 ft AGL

Q

VCM output temperature to PME

A

43°F

Q

VCM PACK ON light time to illuminate

A

Up to 10 seconds

Q

Time after (trip) reset before VCM back to ON

A

53 second

Q

Number of VCM resets inflight

A

3

Q

Equipment cooling VALVE OPEN light indicates

A

valve open more than 30 degrees

Q

VALVE OPEN light extinguishes during climbout

A

2.8 psid

Q

VALVE OPEN light illuminates during descent

A

1.8 psid

Q

Draw Through OVBD VLV OPEN light

A

Overboard discharge valve open more than 3°

Q

OVBD VLV OPEN light extinguishes after T/O

A

within 30 sec

Q

COTS allowable temperature range

A

55 to 90°F

Q

Pressurization in TAKEOFF position

A

Cabin altitude descends 250 ft below airport

Q

Max differential pressure (both outflow valves)

A

8.6 psid

Q

Pressure relief setting

A

9.42 psid positive / .36 psid negative

Q

Emergency depressurization switch

A

1 psig of ambient within 60 seconds

Q

Cabin altitude warning horn (LOSS OF PRESS)

A

10,000 (+/- 1000)

Q

Cabin altitude override limits cabin altitude to

A

14,000 ft

Q

Inner window cracked depressurize to

A

5.0 psid

Q

Both windows cracked depressurize to

A

2.0 psid (inner and outer)

Q

Stage of compressiong tap off for conditioned air

A

15th stage