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38 Cards in this Set
- Front
- Back
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Aircraft Oxygen Systems fall into what two categories? |
Gaseous
Liquid |
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Gaseous Oxygen falls into what three categories?
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Low Pressure (0-500 psig)
High Pressure (0-1800 psig) Reduced High Pressure |
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Gaseous Oxygen Systems are used in what type aircraft?
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Multiplace aircraft where space and weight considerations are less important items
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What type aircraft are Liquid Oxygen Systems used in?
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Aircraft where space and weight consideration is paramount
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Liquid oxygen systems consist of what parts?
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Converter
Filler valve Heat exchanger Control valve Releif valve Tubing Regulators and other cockpit instruments |
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Diluter Demand Type Regulators are used in some aircraft with what systems?
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Gaseous Oxygen Systems
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By placing the diluter lever knob to the normal position, an air-oxygen mixture is supplieds upon demand up to what alttitude?
A) 32,000-45,000 feet B) 28,000-32,000 feet C) 25,000-32,000 feet |
B) 28,000-32,000 feet
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At approximately _________ feet ambient air is shut off, and the user receives 100% oxygen?
A) 25,000 feet B) 45,000 feet C) 31,000 feet D) 32,000 feet |
D) 32,000 feet
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Automatic Positive Pressure Diluteer Demand Regulators are used in aircraft with what type systems?
A) Gaseous B) Liquid C) Gaseous or Liquid |
C) Gaseous or Liquid
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Positive Pressure Regulators at 28,000-32,000 feet are the same as what regulator?
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Diluter Demand Regulator
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Above what alttitude does the Positive Pressure Diluter Regulator add oxygen at a posiutive pressure to the mask?
A) 25,000 feet B) 30,000 feet C) 35,000 feet D) 40,000 feet |
B) 30,000 feet
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Service ceiling of the Positive Pressure Diluter Regulator is what altrittude?
A) 40,000 feet B) 45,000 feet C) 50,000 feet D) 55,000 feet |
C) 50,000 feet
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Pressure Diluter Regulator shall not be used above what altittude except for short periods?
A) 40,000 feet B) 42,000 feet C) 43,000 feet D) 44,000 feet |
C) 43,000 feet
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Miniature Regulators do what?
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reduce and regulate supply pressure, and deliver 100% oxygen
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A safety feature on the Mini Regulator automatically maintains a pressure of what amount?
A) 0 to 2.5 H2O at all altitudes up to and including 34,000 feet B) 0 to 2.5 H2O at all altitudes up to and including 35,000 feet C) 0 to 2.5 H2O at all altitudes up to and including 54,000 feet |
0 to 2.5 H2O at all altitudes up to and including 34,000 feet
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In the mini Regulator the pressure breathing feature maintains a positive pressure in the mask of up to what?
A) 20.0 in H2O at altitudes between 30,000 and 50,000 feet B) 20.0 in H2O at altitudes between 35,000 and 50,000 feet C) 20.0 in H2O at altitudes between 35,000 and 505000 feet |
20.0 in H2O at altitudes between 35,000 and 50,000 feet
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Miniature Regulators can be used up to how many feet?
A) 41,000 B) 43,000 C) 45,000 |
43,000
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Only oxygen conforming to ________ shall be used in aircraft gaseous oxygen systems.
A) MIL-PRF-27312 Type I B) MIL-PRF-27210 Type I C) MIL-PRF-27215 Type I |
MIL-PRF-27210 Type I
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How can you identify Aviator oxygen supply cylinders?
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Green
3 in white band around upper cylinder |
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What shall be stenciled in white letters 1 3/4 to 2 in high
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OXYGEN AVIATORS
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Pressure in oxygen cylinders shall not fall below what amount?
A) 50 psig B) 55 psig C) 60 psig |
50 psig
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All cylinders which have a pressure below _______ shall be removed from service for vacuum and heat drying/hot nitrogen gas drying
A) 5 psig B) 10 psig C) 15 psig |
15 psig
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Hydrostatic test interval for P3 fixed installed oxygen cylinders shall not exceed ______ years.
A) 4 B) 5 C) 8 |
8
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Never refill a cylinder that has reached what?
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5 year hydro test
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Always assume that frosted or uninsulated lines are at what temp?
A) -197 degrees F B) -235 degrees F C) -297 degrees F |
-297 degrees F
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One volume of liquid oxygen will expand to ______ volumes of gaseous oxygen. If this happens in confined space it can explode.
A) 10,000 B) 11,000 C) 12,000 |
12,000
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Only liquid oxygen conforming to ___________ shall be used in aircraft liquid oxygen systems.
A) MIL-PRF-27211 TYPE II B) MIL-PRF-27210 TYPE II C) MIL-PRF-27205 TYPE II |
MIL-PRF-27210 TYPE II
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LOX storage shelves shall not be less then ______ high and no less then _______ deep?
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17 inch
18 inch |
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LOX shelters shall be painted what color with what color reflective tape?
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white paint
green tape |
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Letters on LOX shelter shall be no less then _________ high.
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2 inch
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Purge oxygen systems with what?
A) oil free nitrogen type II class I Grade B B) oil free nitrogen type I class II Grade B C) oil free nitrogen type I class I Grade B |
oil free nitrogen type I class I Grade B
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Oxygen test stands and purging equipment use only nitrogen from what color cylinders and marked with what?
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gray paint
NITROGEN OIL FREE in white letters Two 3-in wide black bands |
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When purging oxygen systems you pass a maximum pressure ___________psig and a minimum temp of _______ degrees for _____ min.
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120 psig
90oF 30 Min |
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Inspections on LOX converters are done how often?
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231 days
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ARO Lox converters are purged at ambiant temp for a period of ______-min.
A) 50 B) 60 C) 70 |
60
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Oxygen shops should be kept at what temp?
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65-75F
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Oxygen is about_________ times densor then air?
A) 5% B) 10% C) 15% |
10%
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Oxygen shops shall be exausted how often for shore and how often for ship
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3 per hour shore
2 per hour ship |
