Deck 13: Lubrication System

Question 1

Technician A says pleated paper is generally used in bypass oil filters. Technician B says a relief valve that is stuck closed will result in high oil pressure at idle. Who is right?

A) Technician A
B) Technician B
C) Both technicians
D) Neither technician

Answer 1

D

Question 2

Excessive clearance at a main bearing will result in low oil pressure at the rocker arms or valve lifters.

Answer 2

False

Question 3

Since the early 1960s, road draft tubes have been used to replace PCV systems.

Answer 3

True

Question 4

Technician A says too much oil can cause excessive oil consumption. Technician B says viscosity goes up (becomes thicker) when the temperature goes up. Who is right?

A) Technician A
B) Technician B
C) Both technicians
D) Neither technician

Question 5

What is the number one cause of engine failure?

Question 6

Synthetic oil molecules are all the same size.

Question 7

Name three oil additives that affect engine wear.

Question 8

Technician A says a windage tray helps to keep air pockets out of the oil at high speeds. Technician B says the lubrication system should be primed before starting an engine that has just been rebuilt. Who is right?

A) Technician A
B) Technician B
C) Both technicians
D) Neither technician

Question 9

Technician A says when oxygen is mixed with oil, it will extend the life of the oil. Technician B says excessively rich air-fuel mixtures can turn the oil black. Which technician is correct?

A) Technician A
B) Technician B
C) Both technicians
D) Neither technician

Question 10

An oil is rated at 10W-40. The "W" means winter grade.

Question 11

Technician A says additive packages make up as much as one-third of the volume of a container of oil. Technician B says friction modifiers added to oil help the oil to stick to metal surfaces. Who is right?

A) Technician A
B) Technician B
C) Both technicians
D) Neither technician

Question 12

Technician A says leaking vacuum lines can allow dirt to be drawn into an engine. Technician B says a horizontally mounted oil filter has an antidrainback valve. Which technician is correct?

A) Technician A
B) Technician B
C) Both technicians
D) Neither technician

Question 13

In addition to preventing hydrocarbon emission, what are two main benefits of a PCV system?

Question 14

What are the two base stocks for synthetic engine lubricants?

Question 15

Oil is being discussed. Technician A says oil never wears out. Technician B says there are many additives in oil that will become depleted during engine operation. Who is correct?

A) Technician A
B) Technician B
C) Both technicians
D) Neither technician

Question 16

Technician A says the primary job of antiwear additives is to protect the camshaft and lifters. Technician B says ZDDP has been commonly used as an antiwear additive. Who is correct?

A) Technician A
B) Technician B
C) Both technicians
D) Neither technician

Question 17

Oil pumps are being discussed. Technician A says gerotor pumps are used on OHC engines. Technician B says the gerotor pump has an uneven pumping action. Who is right?

A) Technician A
B) Technician B
C) Both technicians
D) Neither technician

Question 18

Technician A says most manufacturers recommend a minimum of 25 psi of oil pressure for every 1000 rpm. Technician B says short trips allow sludge to accumulate. Who is right?

A) Technician A
B) Technician B
C) Both technicians
D) Neither technician

Question 19

What organization administers the Engine Oil Licensing and Certification System (EOLCS)?

Question 20

Viscosity is a term used to describe the thickness or body of engine oil.