Deck 12: Engine Lubrication

Question 1

The by-pass valve on most passenger car oil filters will open when resistance to flow reaches about ____.

A)8 psi
B)12 psi
C)14 psi
D)16 psi

Answer 1

A

Question 2

While having a discussion, Technician A says that A multi-vis oil helps combat engine wear because it flows more quickly to the bearings when the engine is first started. Technician B says that multi-vis oil actually accelerates engine wear. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Answer 2

A

Question 3

The organization that is MOST-Likely to decide when new oil specifications are needed is the:

A)AAMA
B)API
C)ILSAC
D)SAE

Answer 3

D

Question 4

Oil normally thins out when heated.

Question 5

All of the following statements are true EXCEPT:

A)when refilling the crankcase with oil, an extra amount of oil equivalent to the oil filter's capacity must be added.
B)some oil filters are mounted horizontally on the engine block.
C)a by-pass filter traps very fine materials and allows very little oil to flow through.
D)today's oils allow the formation of sludge.

Question 6

Since ____, no oils can display the starburst symbol unless they meet GF-4 standards.

A)1978
B)1994
C)2002
D)2005

Question 7

SA and SB graded oils are good only for very light-duty applications and are obsolete for automotive engines, although they are sometimes found on market shelves.

Question 8

The ____________________ is the area at the bottom of the engine enclosed by the oil pan. If there is too much oil in the crankcase, the crankshaft can dip into the oil as it spins.

Question 9

____________________ and dispersants are added to oil to keep small particle contaminants suspended in the oil

Question 10

Which of the following is LEAST-Likely to be one of the materials used to create a by-pass filter?

A)Cotton fiber
B)Rubber
C)Wood chips
D)Shredded paper

Question 11

As an engine wears, clearance between its crankshaft and bearings decreases.

Question 12

While having a discussion about O-rings at the bottom of filters, Technician A says that the Automotive Filter Manufacturer's Council recommends that the filter's O-ring be lubricated with oil after installing the filter. Technician B says that the filter's O-ring should be lubricated before installation. Who is correct?

A)A only
B)B only
C)Both A and B
D)Neither A nor B

Question 13

Viscosity, which is measured at 212F (100C), is lower if the oil is thicker.

Question 14

Aerated oil can be compressed, which can result in collapsed hydraulic lifters, or even a broken crankshaft.

Question 15

____________________ is the thickness or body of an oil. It is a measurement of its resistance to flow.

Question 16

Today's passenger cars use the ____________________ oil filter system.

Question 17

The ability to resist change in viscosity as an oil heats up is called its ____________________.

Question 18

All of the following are parts of a pleated oil filter EXCEPT:

A)the shell
B)the by-pass valve
C)the cylinder
D)the anti-drain back valve

Question 19

Which of the following is LEAST-Likely to be the cause of excessive oil temperatures?

A)Using the air conditioner
B)Sludge
C)Lean air-fuel mixtures
D)Retarded ignition timing

Question 20

To prevent harmful abrasive particles in the oil from damaging internal parts of the engine, the item you would MOST-Likely use is:

A)polymer
B)an anti-drain back valve
C)a by-pass valve
D)the engine's oil filter

Question 21

Under what circumstances would the by-pass valve open to let the unfiltered oil flow to the engine?

Question 22

List five additives found in engine oil.

Question 23

What are the advantages of changing engine oil?

Question 24

What factors should you bear in mind when checking the engine oil level?

Question 25

How is the viscosity of a liquid determined?