Oxygen Flashcards
The source of oxygen in the KC-135 primary and auxiliary systems is _______ oxygen
Gaseous
The primary system shutoff valve will be safety wired in the full _______ position during normal operation.
Counterclockwise (Open)
There are normally ___________ MA-1 portable oxygen assemblies on the aircraft, plus 2 brackets.
8
The MA-1 portable oxygen bottle assembly consists of __________, _______, and _______
A-21 pressure demand regulator; A-6 oxygen cylinder; Carrying harness
The EPOS can be used as a source of oxygen by the crew when movement about the aircraft is necessary for crew duties, except___________.
Passenger monitoring duties.
The purpose of the AERP is to protect aircrew members from ____________________.
Toxic chemical exposure
When in flight, if the primary system shows a pressure below 100 psi, you must:
Open the auxiliary system shutoff valve
The primary and auxiliary system will be serviced:
As determined by the aircraft commander
The service panel consists of a(n) ____________ and __________________.
An oxygen filler valve; A pressure gage
The oxygen FLOW indicator indicates ______.
normal flow of oxygen
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 _____
30,000 ft cabin pressure altitude; sea level
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
True
The A-21 pressure-demand regulator regulates portable oxygen bottle pressure delivered to the mask. T/F
True
The regulator supplies 100% oxygen, but only when the altitude selector knob is set to EMER. T/F
False, it provides 100% oxygen at all times
A positive lock is provided on the MA-1 portable oxygen bottle selector knob. T/F
False
Which altitude selector knob position supplies the highest positive pressure?
EMER
What are you checking for when you set the emergency toggle lever to TEST MASK and hold your breath?
Proper mask fit and serviceable hoses and connectors
Ensure pilot and copilot oxygen bottles are serviced to at least _______PSI and the altitude selector knob is set to ___________.
300; normal
Oxygen pressure in the MA-1 portable oxygen bottle should not be permitted to drop below ________ psi.
50
Prior to servicing the portable oxygen bottles, you should ensure that the oxygen cylinder filler port and oxygen recharger outlet are ____________________.
Free of oil and grease
The copilot will initiate oxygen checks every 15 min between ________ and __________ ft and every 5 min above __________ ft.
10,000-25,000; above 25,000 ft CABIN ALTITUDE
A functioning system and mask located within arm’s reach, with a regulator set to 100% and ON describe oxygen being ___________________.
Readily available
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 _______________.
Immediately available
After setting the oxygen regulator for emergency use, you should
Inform the pilot immediately, as this reduces the oxygen supply duration
When the emergency oxygen toggle lever is set to EMERGENCY, the regulator supplies:
100% oxygen under positive pressure
The oxygen regulator is suitable for routine use up to __________ feet and for emergency use up to __________ feet.
42,000; 50,000
