Question 1

The purpose of the oil filter bypass valve is to ________.

Accepted Answer

A)  Allow oil to bypass the filter if the filter becomes clogged
B)  Keep the oil from draining out of the filter when the engine is shut off
C)  Allows oil to bypass the oil filter when the oil is hot, to help cool the oil
D)  Both B and C A

Question 2

Using the incorrect multi-grade oil can cause the check engine light to come on.

Accepted Answer

A) True 
 B)False  True

Question 3

The engine oil life monitor may be based on ________.

Accepted Answer

A)  Vehicle mileage
B)  A PCM programmed algorithm
C)  Either A and B
D)  Neither A nor B C

Question 4

Which of these oils contains no detergents or additives and is NOT suitable for use in engines?

Accepted Answer

A)  SG
B)  SM
C)  SA
D)  None of these

Question 5

Which statement below best defines the term miscible?

Accepted Answer

A)  The lowest temperature at which oil will flow
B)  The oil's resistance to flow
C)  Oil can mix with other oils without causing problems
D)  The change in viscosity from cold to hot temperatures

Question 6

Oil viscosity refers to which of these?

Accepted Answer

A)  Tendency of oil to resist flowing
B)  Tendency of oil to increase flow
C)  Divided into body and fluidity
D)  Most important property of lubricating oil

Question 7

Which of the following is NOT a characteristic of satisfactory engine oil?

Accepted Answer

A)  Resist foaming
B)  Pours at low temperatures
C)  Proper viscosity
D)  Provide dry friction between moving parts

Question 8

Technician A says that some vehicle manufacturers recommend an ILSAC grade be used in the engine. Technician B says that an oil with the specified API rating and SAE viscosity rating should be used in an engine. 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 9

Most conventional (mineral) oil is made from what API group?

Accepted Answer

A)  Group IV or V
B)  Group III
C)  Group I
D)  Group II

Question 10

Which of these oils is recommended by General Motors for diesel engines, beginning in 2011?

Accepted Answer

A)  Dexos 2
B)  GM 6094M
C)  LL-01
D)  Dexos 1

Question 11

Oil with a high viscosity has a ________ resistance to flow than oil with a lower viscosity.

Accepted Answer

A)  Equal
B)  Higher
C)  Lower
D)  None of these

Question 12

Most high mileage oils cannot meet IlSAC GF-4 rating and are, therefore, ________ for use in most engines.

Accepted Answer

A)  Dangerous
B)  Harmful
C)  Highly recommended
D)  Not recommended

Question 13

Technician A says that the engine oil used should be meet the vehicle manufacturer's standards. Technician B says that the specified viscosity of oil should be used. 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 14

Different brands of oil can be used in a vehicle from one oil change to another if they meet vehicle specifications, because all oil is ________.

Accepted Answer

A)  Of the same viscosity
B)  Miscible
C)  The same API group
D)  Both A and C

Question 15

Older engines that use flat-bottom lifters should use oil (or an additive) that has enough ________.

Accepted Answer

A)  Polyalpholefin (PO
A)  
B)  Viscosity
C)  ZDDP (zinc) 
D)  Diesters

Question 16

Oil change intervals as specified by the vehicle manufacturer ________.

Accepted Answer

A)  Generally only include time between oil changes
B)  Only include miles driven between oil changes
C)  Are minimum time and milage intervals
D)  Are maximum time and milage intervals

Question 17

The "W" in SAE 5W-20 means ________.

Accepted Answer

A)  Without
B)  Winter
C)  Weight
D)  With

Question 18

A major advantage of using synthetic engine oil is its ability to remain ________ at very low temperatures.

Accepted Answer

A)  Resistant
B)  Warm
C)  Clear
D)  Fluid

Question 19

Which of the following should be used when changing the oil in a car with a gasoline engine made in 2004 or later?

Accepted Answer

A)  GF-1 ILSAC
B)  CI-4 API
C)  CE API
D)  SM API

Question 20

The oil filter can be thrown in the trash as soon as it is removed from the engine, since it is still warm.

Accepted Answer

A) True 
 B)False

Exam 22: Engine Oil