Oxygen Bottles
Oxygen Systems
Oxygen Basics and Maintenance
Pressurization Components
Pressurization Operation
100

This is the pressure that an oxygen bottle must be tested to when performing a hydrostatic test.

What is 5/3 bottle pressure?

100

This type of oxygen system has oxygen flow at all times, regardless of user breathing.

What is a continuous flow system?

100

This is the primary difference between "Aviator's Breathing Oxygen" and standard breathing oxygen?

What is control of moisture content?

100

This component controls the rate at which pressure leaves the cabin.

What is the outflow valve?

100

This airflow (In or Out) is controlled to maintain a desired cabin pressure setting.

What is air OUT?

200

This is the hydrostatic test interval of a DOT-3AA oxygen bottle.

What is 5 years?

200

This type of oxygen system only has oxygen flow on inhale, and dilutes oxygen concentration based on altitude.

What is diluter-demand oxygen system?

200

This is a potential result from oxygen coming in contact with petroleum (oil) products.

What is spontaneous combustion?

200

This component takes pilot inputs, senses cabin and ambient pressures, and uses those inputs to send control signals to outflow valves.

What is the cabin pressure controller?

200

This is the term for the pressure inside of the cabin that the pilot sets.

What is cabin altitude?

300

This is the service life in years of composite (DOT-E-8162) oxygen bottles.

What is 15 years?

300

This type of oxygen system applies oxygen to the user's lungs with a positive pressure.

What is pressure-demand oxygen system?

300

This material and indication is used to check an oxygen system for leaks before return to service following any component replacement.

What is bubbles from an oxygen safe leak detection fluid?

300

This component releases excess pressure if the pressure differential becomes too great.

What is cabin pressure safety valve?

300

This term is used to identify the number for the pressure inside the cabin versus the pressure outside of the cabin.

What is differential pressure?

400

This oxygen bottle specification has a hydrostatic test interval of 3 years, and the lifespan has a limited number of fillings. 

What is a DOT-3HT bottle?

400

This component vents excess oxygen pressure overboard to protect systems and aircraft occupants in the event of a pressure regulation failure.

What is a pressure relief valve?

400

This is approximately the percentage of the atmosphere that is oxygen.

What is 21%?

400

This component prevents pressure outside of the aircraft from becoming greater than pressure inside the cabin.

What is negative pressure relief valve?

400

This switch allows the cabin to gradually pressurize as the aircraft begins to take off.

What is the throttle switch?

500

These are the five items that must be on an oxygen bottle to be considered airworthy.

What is: DOT specification, last test date, serial number, pressure, green with "Aviator's Breathing Oxygen"?

500

A solid chemical oxygen generator system generates oxygen from the burning of this material.

What is sodium chlorate?

500

These are three states that supplemental oxygen can be carried on an aircraft.

What is gaseous, liquid, and solid oxygen?

500

This switch holds the cabin safety valves open when the aircraft is running on the ground to prevent ground pressurization.

What is the squat or WoW switch?

500

This mode of cabin pressurization maintains a set cabin altitude, regardless of airplane altitude.

What is isobaric mode?

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