AMT 627 CABIN ATMOS PRELIM

26問 • 1年前

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envelops the earth and extends upward for more than 20 miles, but because air has mass and is compressible, the gravity of the earth pulls on it and causes the air at the lower levels to be more dense than the air above it.

Atmosphere

makes up approximately 78% of the air, and oxygen makes up 21% of the total mixture.

Nitrogen

is extremely important for both animal and plant life. Water vapor and carbon dioxide are also extremely important compounds. The other gases in the air, such as argon, neon, and krypton are relatively unimportant elements physiologically.

Oxygen

Anytime the body is deprived of the required amount of oxygen, it will develop (blank)

Hypoxia

At higher altitudes (generally above 10,000 feet) the air is thin enough to require supplemental oxygen for humans to function normally.

Oxygen Systems

is a special type of thermos bottle designed to hold extremely cold liquids.

Dewar

Most of the aircraft in the general aviation fleet use (blank blank) stored in steel cylinders under a pressure of between 1,800 and 2,400 psi.

Gaseous Oxygen

is a pale blue, transparent liquid that will remain in its liquid state as long as it is stored at a temperature of below 181 degree Celsius

Liquid Oxygen

generators, called candles, are used in many large aircraft to provide supplemental oxygen for the passengers in case of depressurization. They are also found in some smaller business aircraft.

Solid Oxygen

is a way in which pressure vessels such as pipelines, plumbing, gas cylinders, boilers and fuel tanks can be tested for strength and leaks

Hydrostatic Test

such as are used in smaller piston-engine powered general aviation aircraft, generally use a continuous flow regulator.

Low-demand systems

do not use oxygen economically, but their simplicity and low cost make them desirable when the demands are low.

Continuous flow systems

are of either the manual or automatic type. Both of these are inefficient in that they do not meter the oxygen flow according to the individual's needs.

Continuous Flow Regulators

Typically consist of two gauges and an adjustment knob. One typical regulator has a gauge on the rignt. that shows the pressure of the oxygen in the system and indicates indirectly the amount of oxygen available.

Manual Continuous Flow Regulators

have a barometric control valve that automatically adjusts the oxygen flow to correspond with the altitude.

Automatic Continuous Flow Regulators

are used by the flight crews on most commercial jet aircraft. When the supply lever is turned on, oxygen can flow from the supply into the regulator.

Diluter Demand Regulators

operate in much the same way as diluter demand regulators except at extremely high altitudes, where the oxygen is forced into the mask under a positive pressure.

Pressure Demand Regulators

The lowest layer of our atmosphere it extends upward to about 33,000ft. above sen level.

Troposphere

mixture of gases that surrounds the Earth, It helps make life possible by providing us with air to breathe, shielding as from harmful ultraviolet (UV) radiation coming from the Sun, trapping beat to warm the planet.

Atmosphere

The outermost layer of our atmosphere, it protects us against the sun's rays.

Exosphere

a thin part of earth's atmosphere that absorbs almost all of the sun's harmful ultraviolet light

Ozone Layer

In What altitude do you need a pressurized cabin?

8,000 ft

How much maximum pressure is in an aircraft cabin?

12 psi

a process in which conditioned air is pumped into and exhausted out of the cabin of an aircraft to keep the pressure in the cabin between sea level and 8000 feet.

Cabin Pressurization

Almost all gaseous oxygen is stored in green painted high-pressure steel cylinders under a pressure of between?

1800 and 2400 psi

To reduce the pressure from the high pressure in the tanks to the relatively low pressure required for breathing.

Pressure Regulator

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Nillo Jb · 38問 · 2年前

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