JL101 Oxygen Equipment

Question 0

Low Pressure Gas
Cylinder Color
Pressure
Advantages/Disadvantages
Requires immediate descent below 10,000 anytime PSI less than \_\_\_\_

Answer 0

Yellow Cylinder
425 PSI +/-25
reduces possibility of explosion, little Mx, but limits volume of oxygen
Requires immediate descent below 10,000 anytime <100PSI

Question 1

5 types of oxygen storage systems

Answer 1

Low Pressure Gas
High Pressure Gas
Liquid Oxygen (LOX)
Solid State
OBOGS

Question 2

High Pressure Gas
Cylinder Color
Full pressure
Empty pressure
Oxygen in egress system is \_\_\_\_ pressure

Answer 2

Green cylinder
1800-2000 PSI
Empty at 200 PSI
Oxygen in egress system is high pressure

Question 3

Liquid Oxygen (LOX)
1 until of LOX is ____ units of gas
Line pressure of ____ to ____ in single/dual seat aircraft
Line pressure of ____ to ____ in multi place aircraft
LOX is full at ____% and empty at ____%

Answer 3

1:860 units
Low pressure line pressure of 70-90 PSI, found in single/dual seat aircraft
High pressure line pressure of 300 PSI on multi-place aircraft
full at 90%, empty at 10%

Question 4

Solid State Oxygen
_____ _____ candle
harmless amount of chlorine for ____ seconds

Answer 4

sodium chlorate candle

harmless amount of chlorine for 12 seconds

Question 5

OBOGS
Extracted from engine bleed air through a _____ _____
Includes a _____ that supplies a limited supply of oxygen in case of OBOGS failure
List the process why which air is extracted and reaches the pilot (step by step)
Emergency (Stage 1 = FL___-FL___)
Test Mask (Stage 2 = FL___-FL___)

Answer 5

Extracted from engine bleed air through a molecular sieve
includes a plenum that provides a limited supply of oxygen in case of OBOGS failure
Engine Bleed>Heat Exchanger>Water Separator>Concentrator>Non-Return Valve>Plenum>Regulator
Emergency (Stage 1 = FL280-FL320)
Test Mask (Stage 2 = FL390-FL410)

Question 6

Continuous Flow Oxygen System
Operation ceiling of FL____
Emergency altitude of FL____
oxygen cylinder in ejection seat is continuous flow for emergency use up to FL___

Answer 6

operational ceiling of FL250
emergency altitude up to FL300
oxygen cylinder in ejection seat is continuous flow for emergency use up to FL500

Question 7

Pressure Demand
Used to survive above FL___
_____ _____regulators are the most widely used
Operational ceiling of FL____
Emergency ceiling of FL___ for very short durations
__-__ minutes of emergency bottle oxygen if OBOGS fails (__-__ of pure oxygen)

Answer 7

Used to survive above FL400
Narrow panel regulators are the most widely used
Operational ceiling of FL430
Emergency ceiling of FL500 for very short durations
8-10 minutes of emergency bottle oxygen if OBOGS fails (2-4 of pure oxygen)

Question 8

Regulator Function
Normal Position ____% to ___% for altitudes from ___ to ____
___% to ___% for altitudes from _____ to _____
MAX Setting concetrations ___% oxygen to ___% inert gas

Answer 8

25% to 70% for SL to 15,000
45% to 95% for 15,0000 to 31,000
95% Oxygen, 5% Inert gas

Question 9

Regulator Components (5)

Answer 9

Supply Lever
Regulator Concentration Lever
Pressure Lever
BIT Button (provides verification that the OBOGS sensor and OBOGS FAIL annunciator operating properly (3min on startup or 20-30 sec below normal O2 levels))
Flow Indicator

Question 10

What is the purpose of the Anti-Suffocation Valve?

Answer 10

Allows continued breathing in the event of OBOGS failure

Question 11

Helmet Check HGU-55/P

How many com checks?

Answer 11

3 Com Checks:

1 on helmet, 2 on mask

Question 12

RICE Check

Answer 12

-Regulator
(External Check: Check overall condition) (Functional Check: “Gang Load” switches)
-Indicator
(Hook up mask, look for white flow indicator)
-Connections
(Check connected to supply line, mask hose and emergency oxygen to CRU-60/P, CRU-60/P secured to harness, mask is secure, hoses for wear/tear/deterioriation)
-Emergency
(Check connector assembly, 2200PSI)