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Interprovincial Review Questions > Engine Lubrication > Flashcards

Engine Lubrication Flashcards

0
Q

Oil oxidation can create [blank] deposits.

a. Gum
b. Sludge
c. Acid
d. Varnish

A

d. Varnish

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1
Q

Motor oil does NOT:

a. Help cool the engine
b. Affect NOx emissions
c. Reduce friction
d. Help seal the combustion chamber

A

b. Affect NOx emissions

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2
Q

The tendency of a liquid to resist flow is called its:

a. API rating
b. Additive package
c. Viscosity
d. Liquidity

A

c. Viscosity

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3
Q

A 1968 engine should use service classification motor oil:

a. SD
b. SJ
c. Either a or b
d. Neither a nor b

A

b. SJ

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4
Q

Antioxidant additives in motor oil:

a. Reduce varnish deposits
b. Clean piston ring grooves
c. Improve viscosity at high temperature
d. All of the above

A

a. Reduce varnish deposits

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5
Q

Dispersant additives in motor oil:

a. Reduce varnish deposits
b. Reduce the formation of sludge
c. Clean piston ring grooves
d. All of the above

A

b. Reduce the formation of sludge

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6
Q

A synthetic motor oil:

a. Is at least partly petroleum based
b. Deteriorates more slowly than a conventional petroleum oil
c. Both a and b
d. Neither a nor b

A

c. Both a and b

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7
Q

Most V8 engines in cars hold [blank] litres of oil.

a. 3 to 4
b. 4 to 6
c. 7 to 8
d. None of the above

A

b. 4 to 6

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8
Q

The road draft tube:

a. Ventilates the crankcase
b. Adds to air pollution
c. Has been replaced by PCV systems
d. All of the above

A

d. All of the above

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9
Q

Oil pumps:

a. May be driven by the crankshaft
b. Contain an inner gear and an outer gear
c. Carry oil from a large to a smaller area to create pressure
d. All of the above

A

d. All of the above

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10
Q

The oil pressure relief valve:

a. Limits the maximum engine oil pressure
b. Routes excess oil to the oil pump inlet
c. Is usually built into the oil pump inlet
d. All of the above

A

d. All of the above

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11
Q

Spin on oil filters:

a. Are used only on older engines
b. Are made of wire mesh
c. Can be cleaned and re-used
d. None of the above

A

d. None of the above

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12
Q

An oil drill way through the crankshaft:

a. Lubricates the rod bearings
b. Lines up with holes in the connecting rod to spurt oil into the cylinder
c. Both a and b
d. Neither a nor b

A

c. Both a and b

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13
Q

All engine dipsticks have marking that show:

a. The recommended SAE grades for the engine oil
b. The maximum and minimum recommended oil level
c. Both a and b
d. Neither a nor b

A

b. The maximum and minimum recommended oil level

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14
Q

Using oil with a viscosity higher than recommended will:

a. Provide inferior lubrication
b. Cause no problem at all
c. Increase horsepower
d. Increase oil consumption

A

a. Provide inferior lubrication

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15
Q

Using oil with a viscosity lower than recommended will:

a. Provide inferior lubrication
b. Cause no problem at all
c. Increase horsepower
d. Increase oil consumption

A

a. Provide inferior lubrication

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16
Q

When inspecting a gear type oil pump, you need to measure:

a. Gear to gear clearance
b. Gear to housing clearance
c. Both a and b
d. Neither a nor b

A

c. Both a and b

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17
Q

You will need a [blank] to measure clearance on a crankshaft driven rotor type oil pump that mounts in the timing cover.

a. Straightedge
b. Feeler gauge
c. Depth micrometer
d. All of the above

A

d. All of the above

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18
Q

Viscosity:

a. Goes down with lower temperatures
b. Goes up with lower temperatures
c. Changes very little with temperature changes
d. Changes with each API rating

A

b. Goes up with lower temperatures

19
Q

Oil coolers are used on some cars:

a. To reduce operating pressure of the engine under severe conditions
b. To reduce operating temperature of oil during severe engine operation
c. To cool the turbocharger
d. To reduce oil viscosity

A

b. To reduce operating temperature of oil during severe engine operation

20
Q

Crankcase oil should be at least warm before it is drained so that:

a. Contaminants will be mixed with the oil and drained out with it.
b. Engine parts will be well lubricated before oil is drained.
c. The oil will flow into the drain pan faster.
d. The engine will start more easily when the new oil is added

A

a. Contaminants will be mixed with the oil and drained out with it.

21
Q

The four jobs that engine oil must do in an engine are to seal, lubricate and:

a. Clean and heat
b. Clean and circulate
c. Cool and clean
d. Cool and insulate

A

c. Cool and clean

22
Q

On a full flow filtration system, the oil, after passing through the filter, goes to the:

a. Oil galleries
b. Valve cover
c. Camshaft lobes
d. Crankcase

A

a. Oil galleries

23
Q

If a full flow oil filter element becomes so clogged that all the oil needed by the engine cannot pass through the filter,

a. The oil filter bypass valve opens allowing oil from the pump to bypass the filter and to the engine.
b. The engine is seriously damaged.
c. The oil pressure relief valve closes, raising the oil pump pressure and increasing the flow.
d. It is bypassed and flows back to the crankcase.

A

a. The oil filter bypass valve opens allowing oil from the pump to bypass the filter and to the engine.

24
Q

Oil filters should be changed:

a. Every oil change
b. Every other oil change
c. Only if the oil is very dirty
d. If the customer is willing to pay for it

A

a. Every oil change

25
Q

Friction between moving parts causes both wear and heat.

a. True
b. False

A

a. True

26
Q

Oil plays no part in cooling the engine.

a. True
b. False

A

b. False

27
Q

Oil additives cannot create a property that the oil did not naturally have.

a. True
b. False

A

b. False

28
Q

When oxygen combines chemically with hot oil, sludge is formed.

a. True
b. False

A

b. False

29
Q

Blowby gases contain acid and water vapour.

a. True
b. False

A

a. True

30
Q

Foam-inhibiting additives are used in small amounts only since they tend to reduce the lubricating ability of the oil.

a. True
b. False

A

a. True?

31
Q

The API rates engine oil by its performance in a test engine.

a. True
b. False

A

a. True

32
Q

Oils for use in late-model gasoline engines should carry an SM rating.

a. True
b. False

A

a. True

33
Q

A thin oil that flow easily has a high SAE viscosity number

a. True
b. False

A

b. False

34
Q

If an engine will be used under widely varying temperatures, a multi-grade oil should be used.

a. True
b. False

A

a. True

35
Q

Synthetic oils are not derived from a petroleum base.

a. True
b. False

A

a. True?

36
Q

Oil in the sump can be cooled by flow past the engine.

a. True
b. False

A

a. True

37
Q

Most engines require 8 to 9 quarts of oil.

a. True
b. False

A

b. False

38
Q

The crankcase is pressurized by the oil pump.

a. True
b. False

A

b. False

39
Q

Road draft tubes are commonly used on late-model engines.

a. True
b. False

A

b. False

40
Q

Gera-type oil pumps are often driven by the camshaft.

a. True
b. False

A

a. True

41
Q

The pressure relief valve keeps a clogged oil filter from blocking oil flow.

a. True
b. False

A

b. False

42
Q

Rotor type oil pumps can be shaft or crankcase driven.

a. True
b. False

A

a. True

43
Q

If the oil pressure relief valve is installed backwards, the engine will have excessive or little oil pressure.

a. True
b. False

A

b. False?

44
Q

A non-hardening gasket sealer should be used to seal the oil pump end housing.

a. True
b. False

A

b. False

Interprovincial Review Questions (21 decks)

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