Emergency Gaseous Oxygen Bottles/Masks

Question 0

MA-1 Emergency Oxygen Bottle is used on what aircraft?

Answer 0

HC-130

Question 1

Emergency oxygen bottles installed in Coast Guard aircraft are as follows

Answer 1

• Low-pressure (50-500) used in the HC-130

- High-pressure (50-1,850)used in the HU-25

Question 2

MA-1 Emergency Oxygen Bottle regulator referred to as?

Answer 2

A-21

Question 3

MA-1 Emergency Oxygen Bottle intended for emergency use with the fullface smoke mask (P/N ____) the ____ oxygen mask.

Answer 3

P/N- 651-280

MBU-10 oxygen mask

Question 4

MA-1 Emergency Oxygen Bottle operating altitude?

Answer 4

Sea level to 43,000 ft

Question 5

MA-1 Emergency Oxygen Bottle normal operating service pressure?

Answer 5

375 PSI (at 70F)

Question 6

MA-1 Emergency Oxygen Bottle selector knob

• NORM
• 30M
• 42M
• EMER

Answer 6

• NORM- 100% oxygen on demand
• 30M- Provides 100% oxygen at a positive pressure of 1.6-2.4 in H2O (inches in water pressure)
• 42M- Provides 100% oxygen at a positive pressure of 5.5-6.5 in H2O (inches in water pressure)
• EMER- Provides 100% oxygen at a positive pressure of 12.0-14.0 in H2O (inches in water pressure)

Question 7

MA-1 Emergency Oxygen Bottle overall dimensions
-Length
-Diameter 
-Circumference 
-Height 
–Weight

Answer 7

-Length-5 9/16 in
-Diameter-5 7/8 in
-Circumference-18 1/2 in
-Height-4 9/16 in
–Weight 2.1 LB

Question 8

5500 Series Emergency Oxygen Bottle is on what plane?

Answer 8

HU-25 (high pressure)

Question 9

5500 Series Emergency Oxygen Bottle what mask is supposed to be used with this?

Answer 9

MF10-03-01 full face quick donning mask

Question 10

5500 Series Emergency Oxygen Bottle additional information may be found in the what manual?

Answer 10

Scott maintenance manual 35-30-77

Question 11

5500 Series Emergency Oxygen Bottle operating altitude?

Answer 11

Sea level to 40,000 ft

Question 12

5500 Series Emergency Oxygen Bottle normal operating service pressure?

Answer 12

1800 +50-0 Psi (at 70F)

Question 13

5500 Series Emergency Oxygen Bottle selector knob?

Answer 13

On/off selector knob 100% oxygen on demand

Question 14

Full Face Quick Dawn Mask is on what aircraft?

Answer 14

HU-25

Question 15

Full Face Quick Dawn Mask it will supply with oxygen at a rated pressure of ____Psig (__bar) through a hose coupling and can be donned single-handed in less then____ seconds.

Answer 15

72.5 Psig
5 Bar
5 seconds

Question 16

Full Face Quick Dawn Mask General characteristics

• Weight
• operating temperature

Answer 16

• Weight- 0.730 kg (1.61 lb)

- operating temperature- +20 C to +60 C (4F to 140F)

Question 17

Full Face Quick Dawn Mask mechanical characteristics

• rated supply pressure
• operating pressure
• maximum flow rate
• maximum operating altitude
• Readiness time (donning)

Answer 17

• rated supply pressure-72.5 psig (5bar)
• operating pressure-60/25 psig (4.2/5,9 bar)
• maximum flow rate-120 l/min NTPD
• maximum operating altitude- 40,000 ft (12,192 m)
• Readiness time (donning) 5 seconds max

Question 18

Full Face Quick Dawn Mask five subassemblies?

Answer 18

1) inflatable harness
2) mask
3) microphone
4) oxygen regulator
5) hose assembly

Question 19

1506V Folding Quick-Don Mask five subassemblies?

Answer 19

• Hardshell/facepiece assembly
• Valve, hoes, and communication assembly
• Suspension assembly
• Goggle assembly
• Holder strap

Question 20

1506V Folding Quick-Don Mask Holder strap P/N?

Answer 20

P/N-358-643E

Question 21

1506V Folding Quick-Don Mask the exhalation portion of the valve is constructed so that only a pressure of _____ greater than the inlet pressure being supplied by the regulator will force open the valve and allow exhaled air to flow from the mask

Answer 21

1 millimeter of mercury