Question 1

In a dry sump system there is no oil at all in the oil pan.

Accepted Answer

A) True 
 B)False  False

Question 2

What type of oil pump is pictured here?

Accepted Answer

A)  External gear
B)  Rotor type
C)  Helical gear
D)  Gerotor

Question 3

Oil consumption of about 1 quart every 700 miles is normal for a motor vehicle.

Accepted Answer

A) True 
 B)False

Question 4

What type of oil pump is driven by the crankshaft?

Accepted Answer

A)  Internal/external gear
B)  Gerotor
C)  External gear
D)  Both A and B

Question 5

Normal oil pump pressure in an engine is ________ PSI.

Accepted Answer

A)  3-7
B)  150-200
C)  10-60
D)  100-120

Question 6

Hydrodynamic lubrication, created by the wedging action of oil between the crankshaft journal and bearing, can be as high as ________ PSI.

Accepted Answer

A)  60
B)  500
C)  1000
D)  120 C

Question 7

Technician A says that oil pressure is normally higher when the engine is cold. Technician B says that normal engine oil pump pressure ranges from 20 to 80 psi (200 to 400 kPa)  or 20 psi for every 1000 engine RPM. Who is right?

Accepted Answer

A)  Technician A only
B)  Technician B only
C)  Both technicians A and B
D)  Neither technician A nor B

Question 8

The oil pressure relief valve controls ________ oil pressure in the lubrication system.

Accepted Answer

A)  Nominal
B)  Minimum
C)  Average
D)  Maximum

Question 9

Technician A says that the lubricating system forms a seal between the piston rings and cylinder walls.Technician B says the lubricating system helps cool engine parts. Who is right?

Accepted Answer

A)  Technician A only
B)  Technician B only
C)  Both technicians A and B
D)  Neither technician A nor B

Question 10

Oil leaving the oil filter is delivered to the oil passages.

Accepted Answer

A) True 
 B)False

Question 11

Two technicians are discussing oil pumps. Technician A says that many oil pumps are driven directly off the front of the crankshaft. Technician B says that some are driven from the distributor if the engine uses a distributor-type ignition system. Which technician is correct?

Accepted Answer

A)  Technician A only
B)  Technician B only
C)  Both technicians A and B
D)  Neither technician A nor B

Question 12

A dry sump system is used in some high-performance vehicles because ________.

Accepted Answer

A)  It allows for a greater oil capacity so that oil temperatures can be controlled
B)  It allows the engine to develop more power
C)  It allows the vehicle to corner or brake for long periods of time
D)  All of the above

Question 13

The oil pressure relief valve is located on the outlet of the oil filter.

Accepted Answer

A) True 
 B)False

Question 14

What type of oil pump is this?

Accepted Answer

A)  A vane pump driven by the crankshaft
B)  A gerotor pump driven by the camshaft
C)  A gerotor pump driven by the crankshaft
D)  A rotary pump driven by the camshaft

Question 15

Engine oil passages in an engine block are called ________.

Accepted Answer

A)  Holes
B)  Pathways
C)  Runners
D)  Galleries

Question 16

A typical oil pump can pump how many gallons per minute?

Accepted Answer

A)  10 to 60 gallons
B)  3 to 6 gallons
C)  50 to 100 gallons
D)  6 to 10 gallons

Question 17

An engine oil cooler usually uses ________ to cool the oil.

Accepted Answer

A)  Air conditioning evaporator output
B)  Coolant
C)  Automatic transmission fluid after it flows through the radiator
D)  Air B

Question 18

Lower than specified oil pressure is measured on a high mileage engine. Technician A says that worn main or rod bearings could be the cause. Technician B says that a clogged oil pump pickup screen could be the cause. Which technician is correct?

Accepted Answer

A)  Technician A only
B)  Technician B only
C)  Both technicians A and B
D)  Neither technician A nor B

Question 19

The oil drains back to the oil pan through ________.

Accepted Answer

A)  Drainback holes
B)  The pushrods
C)  The camshaft
D)  Drain pumps

Question 20

Some vehicles use an oil cooler the help maintain proper oil temperature. Oil temperature range should be ________.

Accepted Answer

A)  Above 300° F
B)  212° F to 300° F
C)  100° F to 150° F
D)  100° F to 125° F

Exam 23: Lubrication System Operation and Diagnosis

In a dry sump system there is no oil at all in the oil pan.

Correct AnswerverifiedFalse

What type of oil pump is pictured here?

Correct AnswerverifiedShow Answer

Oil consumption of about 1 quart every 700 miles is normal for a motor vehicle.

Correct AnswerverifiedShow Answer

What type of oil pump is driven by the crankshaft?

Correct AnswerverifiedShow Answer

Normal oil pump pressure in an engine is ________ PSI.

Correct AnswerverifiedShow Answer

Hydrodynamic lubrication, created by the wedging action of oil between the crankshaft journal and bearing, can be as high as ________ PSI.

Correct AnswerverifiedC

Technician A says that oil pressure is normally higher when the engine is cold. Technician B says that normal engine oil pump pressure ranges from 20 to 80 psi (200 to 400 kPa) or 20 psi for every 1000 engine RPM. Who is right?

Correct AnswerverifiedShow Answer

The oil pressure relief valve controls ________ oil pressure in the lubrication system.

Correct AnswerverifiedShow Answer

Technician A says that the lubricating system forms a seal between the piston rings and cylinder walls.Technician B says the lubricating system helps cool engine parts. Who is right?

Correct AnswerverifiedShow Answer

Oil leaving the oil filter is delivered to the oil passages.

Correct AnswerverifiedShow Answer

Two technicians are discussing oil pumps. Technician A says that many oil pumps are driven directly off the front of the crankshaft. Technician B says that some are driven from the distributor if the engine uses a distributor-type ignition system. Which technician is correct?

Correct AnswerverifiedShow Answer

A dry sump system is used in some high-performance vehicles because ________.

Correct AnswerverifiedShow Answer

The oil pressure relief valve is located on the outlet of the oil filter.

Correct AnswerverifiedShow Answer

What type of oil pump is this?

Correct AnswerverifiedShow Answer

Engine oil passages in an engine block are called ________.

Correct AnswerverifiedShow Answer

A typical oil pump can pump how many gallons per minute?

Correct AnswerverifiedShow Answer

An engine oil cooler usually uses ________ to cool the oil.

Correct AnswerverifiedB

Lower than specified oil pressure is measured on a high mileage engine. Technician A says that worn main or rod bearings could be the cause. Technician B says that a clogged oil pump pickup screen could be the cause. Which technician is correct?

Correct AnswerverifiedShow Answer

The oil drains back to the oil pan through ________.

Correct AnswerverifiedShow Answer

Some vehicles use an oil cooler the help maintain proper oil temperature. Oil temperature range should be ________.

Correct AnswerverifiedShow Answer

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False

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C

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B

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