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T-1A Systems 5 > Environmental Systems > Flashcards

Environmental Systems Flashcards

1
Q

When can you use the electric heaters?

A

Only on the ground with a GPU

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2
Q

When can you use wing anti-ice on the ground?

A

Preflight and landing roll out.

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3
Q

When should you not operate engine anti-ice on the ground except for the preflight test?

A

OAT/SAT exceeds 10 deg C

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4
Q

When must engine anti-ice be ON for taxi and takeoff?

A

When in visible moisture at 5 deg C or colder

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5
Q

List three instances when the load shed controller will automatically shut off the VCCS?

A

1-Engine Start
2-When using windshield deice
3-When using horizontal stabilizer anti-ice/deice

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6
Q

Which VCCS component removes heat from the refrigerant following compression?

A

Condenser/heat exchanger

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7
Q

Placing the AUX TEMP CONTROL rotary switch to what position applies power to the VCCS?

A

AUX COOL

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8
Q

How is air temperature controlled with the AUX TEMP CONTROL switch in the ELEC HEAT 1 position?

A

Air temperature can’t be controlled by the crew when using the electric heat subsystem. The air temperature is automatically maintained at 120-150 deg F at the outlet

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9
Q

In which BLEED AIR switch positions will ACU cooling air be provided to the flight deck?

A

1-L ENG
2-R ENG
3-NORM
4-HIGH

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10
Q

In which mode switch position will sensors on the flightdeck be used to help maintain a constant flight deck temperature?

A

AUTO FLDK

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11
Q

Where is the ACU located?

A

In the forward position of the aft compartment

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12
Q

What are the indications bleed air has switched to emergency?

A

AIR COND FAIL annunciator illuminates and MASTER CAUTION

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13
Q

Pressing what switch provides additional cooling air into the aft portion of the cabin?

A

Cabin Outlet Switch

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14
Q

Under normal conditions, how is the T-1A cabin pressurized?

A

Airflow from the ACU

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15
Q

What does pulling the Cabin Dump T-handle do?

A

Depressurizes the cabin by bypassing the backup pressure regulator and opening the right outlfow valve.

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16
Q

When will the CABIN PRESSURE HI annunciator illuminate?

A

11+-1 psid

17
Q

When does the CABIN PRESSURE LO annunciator illuminate?

A

cabin altitude exceeds 9500+-500 feet

18
Q

What is the purpose of the VCCS?

A

The only source of cooling air when the aircraft’s engines are not operating

19
Q

Below what temperature will the VCCS automatically not operate?

A

Below 20 deg F

20
Q

What provides heating for the engine anti-ice system?

A

Bleed air

21
Q

How can you be sure wing anti-ice system has fail?

A

N2>70% and WG ICE TEMP LO

22
Q

Do not operate engine anti-ice system on the ground, except for preflight when above what temperature?

A

10 deg C

23
Q

What should you do to avoid exceeding ITT limits prior to turning on engine or wing anti-ice?

A

Momentarily reduce throttles to a max of 90% N1

24
Q

If ice is present, turn on the ______ switches prior to turning on the systems.

A

ignition

25
Q

Do not operate anti-ice/deice systems at a RAT greater than what, unless in actual icing conditions?

A

10 deg C

26
Q

If you encounter icing conditions during flight, use no greater than what degree of flaps?

A

10 degrees, unless in icing conditions for less than 10 minutes, and RAT during each encounter is warmer than -8 deg C or a RAT of +10 deg C is observed during descent, approach, landing.

27
Q

When is windshield heat required?

A

When cruising about 18,000 feet

28
Q

What does using the HIGH setting of windshield heat do?

A

Cause erratic and unreliable magnetic compass readings at any time, and is prohibited during takeoff and landing due to possible windshield distortion

29
Q

If the horizontal stab anti-ice and deice fail, you should not use more than how many degrees of flaps?

A

10 degrees

30
Q

What does it mean if the green blowout disk on the right side of the nose section is missing?

A

It means the oxygen cylinder has overpressurized to approximately 2700 psi, and the entire oxygen supply has been vented overboard

31
Q

What is the recommended throttle setting if you’ve encountered icing?

A

90 % N1

T-1A Systems 5 (1 decks)

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