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Block 8 Quiz 8-9
Quiz 8 AND 9
Question | Answer |
---|---|
What test is used to determine the serviceability of an oxygen cylinder? ___________ pressure test with water —-- pressure test with nitrogen —-- pressure test with manometer | pressure test with water |
Although aviation oxygen is similar to commercially processed oxygen, aviation oxygen is processed further to remove minute traces of nitrogen. ___________ True —-- False | False |
Commercial aircraft fly between 30,000 and 40,000 feet depending on weight. ___________ True —-- False | True |
The mixture of gases that make up the earth's atmosphere is composed of ____ percent nitrogen and _____ percent oxygen. ___________ 50, 50 —-- 21, 78 —-- 78, 21 | 78, 21 |
The altitude controller maintains cabin altitude by modulation of the ___________ safety and shuttle valve —-- safety valve —-- outflow valve | outflow valve |
The standard pressure of the atmosphere, at sea level is _________. 14.7 psi —-- 23.92 Hg —-- 1012.3 hectoPascals | 14.7 psi |
The lack of oxygen and its effects on the human body is called ___________? hypothermia —-- hypertension —-- hypoxia | hypoxia |
On some cabin pressurization systems, pressurization on the ground is restricted by the cabin pressure regulator. —-- negative pressure-relief valve. —-- main landing gear operated switch. | main landing gear operated switch |
Pressurization safety valves are used to prevent damage to engine-driven compressors. ___________ True —-- False | False |
How is the cabin pressure of a pressurized aircraft usually controlled? By a pressure-sensitive switch that causes the pressurization pump to turn on or off as required. —-- By an automatic outflow valve that dumps all the pressure in excess of the amount for which it is set. —-- By a pressure-sensitive valve that controls the output pressure of the pressurization pump. | By an automatic outflow valve that dumps all the pressure in excess of the amount for which it is set. |
Oxygen bottles are labeled with the words "Aviators Breathing Oxygen" and regulated by the ___________.FAA —-- DOT —-- NTSB | DOT |
Oxygen lines are color coded ________________.green and yellow —-- green and white —-- green | green and white |
An O2 (oxygen) cylinder should never be completely emptied and considered empty between _____________________ psi. 5 and 10 —-- 15 and 115 —-- 50 and 100 | 50 and 100 |
The difference between the air pressure inside the aircraft's cabin and the air pressure outside the cabin is called _____________. cabin rate of climb —-- cabin altitude —-- cabin differential pressure | cabin differential pressure |
An aircraft pressurization cycle is considered to be four complete series of events of operations that recur regularly. True —-- False | False |
The cabin pressure of an aircraft in flight is maintained at the selected altitude by. controlling the air inflow rate —-- controlling the rate at which air leaves the cabin —-- inflating door seals and recirculating conditioned cabin air | controlling the rate at which air leaves the cabin |
The purpose of the dump valve in a pressurized aircraft is to relieve. ___________ pressure in excess of the maximum differential —-- all positive pressure form the cabin —-- a negative pressure differential | all positive pressure form the cabin |
What type of oxygen system uses the rebreather bag-type mask? ___________ Diluter demand —-- Continuous flow —-- Demand | Continuous flow |
What are the three typical sources of air used to pressurize reciprocating aircraft? ___________ engine-driven compressor, turbocharges, and superchargers —-- gear pump, vane pump, and bent-axis compressor —-- radial pump, inline pump, v-pump | engine-driven compressor, turbocharges, and superchargers |
When the cabin is pressurized in ___________ mode, the pressurization system maintains the cabin altitude at a single pressure. constant differential —-- vessel —-- isobaric | isobaric |