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T-1 Jayhawk > Environmental Systems & Anti-Ice > Flashcards

Environmental Systems & Anti-Ice Flashcards

1
Q

Bleed air (at TRT) normally doesn’t exceed…

A

600 degrees F, 125 psi

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2
Q

AIR COND FAIL annunciator & ACU will shut down if exit air temp exceeds ___ F, or compressor inlet pressure exceeds __ psi

A

400, 53

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3
Q

CABIN AIR OV HT illuminates at

A

390 +/- 15 degrees F in cabin vents

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4
Q

The _ switches in aft compartment will trigger BL AIR DUCT FAIL at ___ F (or an anti-ice problem)

A

4; 350

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5
Q

(Pressurization) How many outflow valves?

A

2

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6
Q

Bleed air pressure to cabin door seal

A

15 psi

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7
Q

Cabin rate of climb is adjustable between __ ft and ____ ft

A

50 to 2000

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8
Q

CABIN PRESSURE HI illuminates

A

11 +/- 1 psid

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9
Q

Outflow valves should keep cabin differential pressure from exceeding…

A

9.1 psid

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10
Q

CABIN PRESSURE LO illuminates

A

9,500 +/- 500 ft cabin altitude

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11
Q

With cabin outflow valve at full decrease, cabin altitude may climb as high as

A

12,500 +/- 500 ft

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12
Q

Prolonged use of EMER pressurization can…

A

melt trim panels, lead to smoke and fumes

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13
Q

When throttles are advanced to T/O, cabin pressurizes approx

A

80 to 120 feet

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14
Q

How many evaporator blower units are in the cabin?

A

3 (fwd, aft, and avionics - not counting stby avionics)

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15
Q

AV BLO FAIL

A

lack of pressure from the avionics blower

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16
Q

The VCCS (vapor cycle cooling system) is located…

A

in the aircraft nose

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17
Q

VCCS is auto depowered if (3 conditions):

A

1) engine start. 2) windshield heat. 3) horiz. stab. anti-ice/de-ice

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18
Q

The only possible power source for electrical heat is…

A

ground power unit

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19
Q

How many electrical heater elements are there?

A

3

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20
Q

Bleed air switch must be in the ___ position to use “ground air”

A

OFF

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21
Q

ICING illuminates when the detector senses ___ inches of ice

A

0.020

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22
Q

The ice detector heating/sensing cycle is ____ seconds

23
Q

Apply engine anti-ice ____ entering icing

24
Q

L/R ENG ICE TEMP LO

A

< 120 degrees F

25
Don't operate engine anti-ice on the ground at temperatures above __ C except for test.
10
26
Bleed air for wing anti-ice is regulated down to ____ psi
38-44
27
Wing anti-ice operation light illuminates
11 psi in the anti-ice system
28
WG ICE TEMP LO
< 140 degrees F
29
WG OV HT
2 switches at 212 F, 1 at 350 F
30
BL AIR DCT FAIL
pressure increase of 3.5 +/- 0.5 psi
31
Icing on descent? Don't use 30 flaps unless (2 scenarios)
1) RAT reaches 10 C on descent. 2) Less than 10 minutes in icing and RAT was warmer than -8 C
32
Horiz. stab anti-ice elements are maintained at ____ degrees F
260-280 F
33
The horiz. stab. de-ice has __ zones
12
34
A complete cycle of the horiz. stab. de-ice zones takes
approx 3.5 minutes
35
If horiz. stab. anti- or de-ice fails...
turn off both & activate de-ice backup
36
STB ANTI ICE FAIL
310 degrees F, or current sensor failure
37
STB DE ICE FAIL
malfunction in current sensor, heater mat, or sequence timer
38
For horiz. stab. de-ice backup, the switch must be held to "manual" every _ minutes
2
39
"Manual" position on horiz. stab. de-ice backup switch activates heat for ____ seconds
30
40
PITOT HEAT OFF
One of the pitot heat systems is off or has failed
41
L/R WSHLD OV HT
approx. 130 degrees F (should go out at 115)
42
Windshield wiper max airspeed
200 KIAS
43
Windshield heat must be ON above ____ ft
18000
44
HIGH windshield heat causes _____ and _____ mag compass
erratic and unreliable
45
If one pilot is out of the seat above FL ___, the other pilot must have oxygen on.
350
46
How much oxygen does the cylinder hold?
77 cubic feet
47
When is the oxygen "operationally empty"?
10% of rated capacity / 200 psi
48
A temperature drop of 100 degrees F will drop oxygen pressure by ___ %.
20
49
The green oxygen discharge indicator will blow out at what pressure?
2700 psi
50
How many passenger masks does the T-1 have?
7
51
Minutes of oxygen on-board ____ from _____ ft to _____ ft, then ____ from ____ ft to _____ ft
declines; 10,000; 25,000; rises; 25,000; 41,000
52
Oxygen isn't available to anyone unless...
SYS READY knob is pulled
53
The redline pressure on the oxygen gauge is
2000 psi

T-1 Jayhawk (11 decks)

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