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Systems 2 > Oxygen > Flashcards

Oxygen Flashcards

1
Q

The source of oxygen in the KC-135 primary and auxiliary systems is _______ oxygen

A

Gaseous

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2
Q

The primary system shutoff valve will be safety wired in the full _______ position during normal operation.

A

Counterclockwise (Open)

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3
Q

There are normally ___________ MA-1 portable oxygen assemblies on the aircraft, plus 2 brackets.

A

8

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4
Q

The MA-1 portable oxygen bottle assembly consists of __________, _______, and _______

A

A-21 pressure demand regulator; A-6 oxygen cylinder; Carrying harness

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5
Q

The EPOS can be used as a source of oxygen by the crew when movement about the aircraft is necessary for crew duties, except___________.

A

Passenger monitoring duties.

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6
Q

The purpose of the AERP is to protect aircrew members from ____________________.

A

Toxic chemical exposure

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7
Q

When in flight, if the primary system shows a pressure below 100 psi, you must:

A

Open the auxiliary system shutoff valve

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8
Q

The primary and auxiliary system will be serviced:

A

As determined by the aircraft commander

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9
Q

The service panel consists of a(n) ____________ and __________________.

A

An oxygen filler valve; A pressure gage

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10
Q

The oxygen FLOW indicator indicates ______.

A

normal flow of oxygen

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11
Q

With the regulator diluter lever set to NORMAL, the regulator delivers a varying mixture of air and oxygen depending on altitude. 100% oxygen at approx _____________ and 100% air at _____

A

30,000 ft cabin pressure altitude; sea level

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12
Q

On regulators other than the CRU-73A, if the oxygen supply lever is OFF, and the diluter lever is in NORMAL, the crewmember will be breathing cabin air only. T/F

A

True

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13
Q

The A-21 pressure-demand regulator regulates portable oxygen bottle pressure delivered to the mask. T/F

A

True

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14
Q

The regulator supplies 100% oxygen, but only when the altitude selector knob is set to EMER. T/F

A

False, it provides 100% oxygen at all times

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15
Q

A positive lock is provided on the MA-1 portable oxygen bottle selector knob. T/F

A

False

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16
Q

Which altitude selector knob position supplies the highest positive pressure?

A

EMER

17
Q

What are you checking for when you set the emergency toggle lever to TEST MASK and hold your breath?

A

Proper mask fit and serviceable hoses and connectors

18
Q

Ensure pilot and copilot oxygen bottles are serviced to at least _______PSI and the altitude selector knob is set to ___________.

A

300; normal

19
Q

Oxygen pressure in the MA-1 portable oxygen bottle should not be permitted to drop below ________ psi.

A

50

20
Q

Prior to servicing the portable oxygen bottles, you should ensure that the oxygen cylinder filler port and oxygen recharger outlet are ____________________.

A

Free of oil and grease

21
Q

The copilot will initiate oxygen checks every 15 min between ________ and __________ ft and every 5 min above __________ ft.

A

10,000-25,000; above 25,000 ft CABIN ALTITUDE

22
Q

A functioning system and mask located within arm’s reach, with a regulator set to 100% and ON describe oxygen being ___________________.

A

Readily available

23
Q

Wear a helmet with an oxygen mask attached to one side, or have available an approved quick-donning/sweep-on-mask properly adjusted and positioned. (Regulators shall be set to 100% and ON) describes oxygen being _______________.

A

Immediately available

24
Q

After setting the oxygen regulator for emergency use, you should

A

Inform the pilot immediately, as this reduces the oxygen supply duration

25
Q

When the emergency oxygen toggle lever is set to EMERGENCY, the regulator supplies:

A

100% oxygen under positive pressure

26
Q

The oxygen regulator is suitable for routine use up to __________ feet and for emergency use up to __________ feet.

A

42,000; 50,000

Systems 2 (12 decks)

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