Chpt 23

Question 1

What’s the normal oil pressure range of an engine lubrication systems?

Answer 1

The normal engine oil pressure range is from 10 to 60 psi.

Question 2

Technician. A stated that the lubrication system helps to seal the piston rings,

Answer 2

true

Question 3

technician B stated that the lubrication system helps to hold their in suspension in the oil until it can be drained from the engine.

Answer 3

true

Question 4

Technician. A stated that the estimated oil temperature can be determined by adding 150 degrees Fahrenheit to the engine temperature.

Answer 4

False

Question 5

Tennison be stated that the oil temperature in an engine should not exceed a 100 degrees ferenheit

Answer 5

False

Question 6

Which of the following is least likely to affect the capacity of an oil pump?

Answer 6

The viscosity of the fuel.

Question 7

Technician A stated that all. Oil pumps are called positive displacement pumps.

Answer 7

True

Question 8

Technician b stated that the pressure delivered by an oil pump reduces as the speed of the pump increases.

Answer 8

False

Question 9

Technician A stated that the rotor type oil pump is driven by the camshaft.

Answer 9

False

Question 10

Technician b, stated that the gerotor type of oil pump has 2 rotors with the inner rotor having a greater number of teeth than the outer rotor.

Answer 10

False

Question 11

Which of the following is true of oil passages

Answer 11

The main oil gallery In an engine is also called a longitudinal header

Question 12

Technician a stated that a nozzle can be used to guide the oil flow to the cam drive for gears.

Answer 12

True

Question 13

Technician b stated that the positive oil flow can be directed by a camfer on bearing parting surface.

Answer 13

A true

Question 14

Which of the following is true of a dry sump system

Answer 14

It uses an externally mounted oil reservoir.

Question 15

Which of the following is an advantage of the dry sump system

Answer 15

The system helps in improving, cornering of the vehicle as the engine can be mounted lower

Question 16

Hydrodynamic lubrication he is created by the wedging action of oil between the crankshaft journal and the can be as high as

Answer 16

1000 psi

Question 17

In typical engine lubrication systems but components are the last to receive oil and the first to suffer from a lack of oil or oil pressure

Answer 17

Valve train components.

Question 18

A typical oil pump can pump how many gallons per minute

Answer 18

3 to 6 gallons.

Question 19

What type of oil pump is driven by the crankshaft?

Answer 19

Gerotor and internal/external gear.

Question 20

Oil passages in the engine block are usually called.

Answer 20

Galleries

Question 21

An engine oil cooler uses what to cool the oil.

Answer 21

Coolant

Question 22

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.

Answer 22

False

Question 23

Lower than specified oil pressure is measured on a high mileage engine. Technician b says that a clogged oil pump pickup screen could be the cause.

Answer 23

True

Question 24

Technician. A says that many oil pumps are driven directly off the front of the crankshaft.

Answer 24

True

Question 25

Technician b says that some are driven from the distributor. If the engine uses a distributor type ignition system.

Answer 25

True