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Showing results 261 - 270 of 851 total.
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5.1.2.6.8.A.1
FEJ FEN FEP FER FET FEX
Knowledge Code: T49
Which is a feature of a diluter-demand regulator?
A) Above approximately 34,000 feet MSL the user receives only oxygen.
B) At sea level some oxygen is mixed with the ambient air.
C) When the oxygen in the reservoir bag is depleted, the user breathes cabin air.
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Modified: 9/2/2000
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5.1.2.6.9.A.1
FEJ FEN FEP FER FET FEX
Knowledge Code: T49
Which is a feature of a constant-flow oxygen system?
A) When the oxygen in the reservoir bag is depleted, the user breathes cabin air.
B) Above approximately 34,000 feet MSL the user receives only oxygen.
C) The reservoir bag refills completely between each inhalation.
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Modified: 9/2/2000
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5.1.2.7.0.A.1
FEJ FEN FEP FER FET FEX
Knowledge Code: T49
Which is a design feature of a demand system oxygen mask?
A) The last part of inhalation has a lower oxygen content.
B) The mask must form an airtight seal.
C) The reservoir bag does not have time to fill between each inhalation.
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Modified: 9/2/2000
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5.1.2.7.1.A.1
FEJ FEN FEP FER FET FEX
Knowledge Code: T49
What usually identifies a high pressure oxygen system bottle?
A) Green color and marked AVIATOR'S BREATHING OXYGEN.
B) Light yellow color and marked FLAMMABLE OXYGEN.
C) Green color and marked HOSPITAL QUALITY BREATHING OXYGEN.
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Modified: 9/2/2000
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5.1.2.7.2.A.1
FEJ FEN FEP FER FET FEX
Knowledge Code: S67
What may be used to disinfect the face portion of an oxygen mask?
A) Mild antiseptic.
B) Light oil.
C) Acetone.
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Modified: 9/2/2000
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5.1.2.7.3.A.1
FEJ FEN FEP FER FET FEX
Knowledge Code: S67
Which position should be selected on a pressure-demand oxygen regulator if there is smoke in the cockpit?
A) Normal.
B) 100 percent.
C) Emergency.
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Modified: 9/2/2000
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5.1.2.7.4.A.1
FEJ FEN FEP FER FET FEX
Knowledge Code: T49
Why should safety precautions similar to fueling an airplane be taken when the oxygen system is serviced?
A) Oxygen is an explosive.
B) Oxygen in its pure state is highly flammable.
C) Oxygen supports combustion, sometimes violently.
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Modified: 9/2/2000
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5.1.2.7.5.A.1
FEJ FEN FEP FER FET FEX
Knowledge Code: T49
Why must oxygen not be permitted to come in contact with oil, grease, or solvents?
A) Oxygen contact with petroleum products can cause spontaneous fires or explosions.
B) Oxygen is highly flammable and will cause petroleum products to burn or explode.
C) Gaseous oxygen is chemically unstable and will combine with petroleum to form a highly explosive mixture.
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Modified: 9/2/2000
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5.1.2.7.6.A.1
FEJ FEN FEP FER FET FEX
Knowledge Code: T49
What is the condition which results from a lack of oxygen and results in permanent physical damage?
A) Anoxia.
B) Nitrogen narcosis.
C) Hypoxia.
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Modified: 9/2/2000
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5.1.2.7.7.A.1
FEJ FEN FEP FER FET FEX
Knowledge Code: T49
What is one danger of any oxygen leak?
A) Any ignition source may ignite highly explosive oxygen which over a period of time saturates the surroundings in poorly vented areas.
B) Oxygen being highly flammable may cause combustible materials to burn intensely.
C) Combustible materials will ignite more rapidly and burn with greater intensity in oxygen rich conditions.
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Modified: 9/2/2000
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