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AM.iii.G.K2 P

QuestionAnswer
The oil dampened also known as hydraulic main bearing utilized in some turbine engines is used to provide an oil film between the outer race and the bearing housing in order to reduce vibration tendencies in the rotor system, and to allow for slight misalignment.
Main bearing oil seals used in turbine engines are usually what type? Labyrinth and/or carbon rubbing.
What is the source of most of the heat that is absorbed by the lubricating oil in a reciprocating engine? Pistons and cylinder walls
If an oil filter element becomes completely clogged the The oil pump will supply unfiltered oil
An oil tank having a capacity of 5 gallons, must have an expansion space of 2 quarts ( no less than 10% of tank capacity)
In order to maintain a constant oil pressure as the clearances between the moving parts of an engine increase through normal wear, the supply pump output remains relatively constant at a given rpm with less oil being returned to the pump inlet by the relief valve.
On a gear type oil pump consisting of a drive gear and an idler gear one gear turns clockwise, ape the other turns counter clockwise.
A Bourdon tube type oil pressure gauges measures the difference in oil pressure between a location after the oil pump and the atmosphere.
In what location (flow sequence) on a reciprocating engine is the main oil filter located? Just after exiting the oil pressure pump.
In order to relieve excess pump pressure in an engine's internal oil system, most engines are equipped with a relief valve.
A floating control thermostat is used on some reciprocating aircraft engines. How does this device help to regulate oil temperature? It controls air flow through the oil cooler
If the oil in the oil cooler core and annular jacket becomes congealed, what unit prevents damage to the cooler? Surge protection valve
Cylinder walls are usually lubricated by Splashed or sprayed oil
When does the oil cooler bypass valve open When the oil temp falls below a specified amount
Which of the following prevents oil from entering the main accessory case of a turbine engine when the engine is not running? Check valve
Oil picks up the most heat from which of the following turbine engine components? Exhaust turbine blade
What is the purpose of the relief valve installed in the venting system of a turbine engine oil tank? Prevent oil pump cavitations by maintaining positive pressure on its inlet.
The type of oil pump most commonly used on turbine powered engines are classified as Positive displacement
Which of the following is a function of the fuel oil heat exchanger on a turbojet engine? Increases fuel temperature
What is the purpose of a last chance oil filter? To prevent damage to the oil pump gears
What is the primary purpose of the oil breather pressurization system that is used on turbine engines? Provides a proper oil spray pattern from the main bearing oil jets.
Which type of valve prevents oil from entering the main accessory case when the engine is not running? Check
3 types of oil pumps used with turbine engines Vane, gear and gerotor
Created by: morganw1
 

 



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