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Servicing Oil Lines, Fittings, and Strainers
Figure 6-1.--Symbols commonly used in electricity.

Aviation Support Equipment Technician
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Q5-9. What is the secondary purpose of the
Q5-12. Which of the following components, found
lubrication system?
mostly in diesel engines, prevent the oil
temperature from rising too high in hot
1. To provide corrosion protection for
weather?
internal components
2. To assist in faster warm-up time of the
1.
An oil pan with cooling fins
engine
2.
An oil temperature regulator
3. To help cool the engine
3.
An oil temperature thermostat
4. To remove dirt from the engine
4.
An oil pan with baffles
Q5-10. Which of the following components is the
Q5-13. What is the function of crankcase ventilation
heart of the lubrication system?
in a gasoline engine?
1.
The oil pan
1. It provides a way for air to enter the
2.
The oil rings
intake manifold
3.
The oil sump
2. It eliminates excessive pressure in the
4.
The oil pump
crankcase
3. It allows sufficient airflow to create a
Q5-11. What are the two types of pumps used in an
higher pressure at the open end of the
engine lubrication system?
breather tube.
1.
A rotary or gear pump
4. It creates a positive back pressure inside
2.
A rotary or reciprocating pump
the crankcase.
3.
A positive displacement or gear pump
4.
A direct drive or positive displacement
pump
5-24






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