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Power-Plant Test

Enter the letter for the matching Answer
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1.
What is the purpose of oil dilution in a reciprocating engine?
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2.
What is the function of a fuel-oil heat exchanger in the lubrication system of a turbojet engine?
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3.
Which pump is the larger in a dry-sump lubricating system, the pressure pump or the scavenger pump?
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4.
What is meant by a wet sump lubrication system?
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5.
What is the purpose of the sludge plugs in the crankshaft of a reciprocating engine?
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6.
What information must be displayed around the oil filler opening for a turbojet engine?
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7.
Where is the oil tank in a dry-sump reciprocating engine vented?
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8.
What is meant by a hot-tank lubrication system?
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9.
What indication would a pilot have if his oil supply was low?
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10.
What is meant by a dry sump lubrication system?
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11.
Where are the last chance oil filters located in a turbojet engine?
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12.
How is oil temperature controlled in an aircraft reciprocating engine?
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13.
What is meant by a cold-tank lubrication system?
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14.
Is the oil temperature shown on the aircraft instrument panel the temperature of the oil entering the engine or of the oil leaving the engine?
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15.
What is the function of the oil control rings on the piston of an aircraft reciprocating engine?
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16.
What is meant by the viscosity of engine lubricating oil?
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17.
What is the function of the hopper in the oil tanks used with some reciprocating engines?
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18.
What happens to the gasoline that is used to dilute the oil in the crankcase of an aircraft reciprocating engine?
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19.
Why do full-flow oil filters have a spring-operated bypass valve in them?
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20.
What is meant by a spectrometric oil analysis?
A.
A lubrication system in which the oil cooler is located in the pressure subsystem.
B.
The resistance of the oil to flow.
C.
It is the temperature of the oil entering the engine.
D.
It is a program in which a sample of oil is taken from the engine at regular intervals and sent to a laboratory, where it is burned in an electric arc. The resulting light is analyzed for the wavelengths of the elements that are present in the oil sample.
E.
This allows heat from the oil to warm the fuel so ice will not form on the fuel filters.
F.
They are located inside the engine just ahead of the nozzles that spray oil onto the bearings.
G.
To the engine crankcase.
H.
When very cold weather is anticipated, gasoline can be mixed with the lubricating oil before the engine is shut down. This reduces the viscosity of the oil and makes starting easier. When the engine is running, the gasoline evaporates out of the oil.
I.
When the engine is running and the oil is warm, the gasoline evaporates out of it.
J.
Hoppers are a part of the oil dilution system. Only the oil in the hopper is diluted. This speeds up dilution and requires less gasoline.
K.
Hot oil is directed through the core of the oil cooler, but cold oil is directed around the outside of the core so it will not be further cooled.
L.
They trap sludge that is in the oil and hold it until the engine is disassembled at overhaul.
M.
A lubrication system in which the oil is carried in a tank that is not a part of the engine.
N.
A lubrication system in which the oil cooler is located in the scavenge subsystem. The oil that is returned to the tank has been cooled.
O.
The oil temperature would be high and the oil pressure would be low.
P.
In case the filter should plug up so it cannot pass any oil, the bypass valve will open and allow unfiltered oil to flow through the system.
Q.
They maintain the proper quantity of oil between the piston and the cylinder wall.
R.
The scavenger pump has the greater volume.
S.
A lubrication system in which the oil is carried inside the engine itself.
T.
The word "Oil" and the permissible oil designations, or references to the Airplane Flight Manual (AFM) for permissible oil designations.
Type the Answer that corresponds to the displayed Question.
incorrect
21.
What kind of oil is used in most turbojet engines?

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