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WorksheetsLubricants-2
Total questions: 27
Worksheet time: 14mins
Which of the following is NOT a function of diesel engine lubrication systems?
Reduce friction to minimize wear and heat
Cool and clean components
Increase the supply of oil
Minimize corrosion
Which of these is a function of diesel engine lubrication.
Sealing piston rings
Cooling and cleaning components
polish components
Storing an adequate supply of oil
What are the two sources from which lubricating oil can be derived?
Mineral oil and synthetic oil
Mineral oil and biological sources
Synthetic oil and biological sources
Crude oil and synthetic oil
What does the API Service Symbol indicate on oil containers?
The price of the oil
The temperature tolerance of the oil
The certification and performance level of the oil
The brand of the oil
Which of the following best describes a fluid with high viscosity?
A) Flows easily
B) Flows with difficulty
C) Evaporates quickly
D) Changes color rapidly
What is the main purpose of viscosity additives in multigrade oils?
To change the color of the oil
To improve the oil's smell
To maintain the oil's viscosity over a range of temperatures
To increase the oil's boiling point
Pour point is:
Highest temperature a fluid will pour at
Highest angle a fluid will pour at
Lowest temperature a fluid will pour at
Lowest angle a fluid will pour at
Engine oils do which of the following
Lubricate only
Lubricate and cool
Lubricate, cool, clean, create pressure
Lubricate , cool, clean, seal
A multigrade oil is an oil that...?
Is for supercars
Has different viscosities
Is for hot countries
Is for pre 1990 engines
What does the "W" stand for in 5W30?
Weight
Winter
Water
Wet
Which oil molecules are uniform in shape?
Conventional
Semi Synthetic
Carbon based
Synthetic
Engine oil additives are designed to break down.
True
False
Oil with a high viscosity has a ________ resistance to flow than oil with a lower viscosity.
Lower
Higher
Equal
Smaller
Lower than specified oil pressure is measured on an engine. What could be the cause?
Excessive main bearing clearance
Seized oil pressure regulator spring
Main bearing clearance that is too tight
Plugged oil gallery
An engine oil cooler usually uses ________ to cool the oil.
Air
Air conditioning evaporator output
Automatic transmission fluid after it flows through the radiator
Coolant
What type of oil filtration systems exist on modern vehicles?
Full flow
Crenellation flow
Partial flow
Unfiltered
The oil pressure relief valve controls ________ oil pressure in the lubrication system.
Maximum
Nominal
Minimum
Average
Technician A says that engine oils need to be compatible with the latest exhaust aftertreatment systems and biofuels. Technician B says aftertreatment
systems do not play a role in the type of oil used in an engine. Who is correct?
Tech A
Tech B
Both Techs
Neither Tech
Motor oils are typically made up of __________ chemical additives.
10-15%
15-25%
20-30%
25-40%
Which of the following statements about common oil additives is correct?
Detergents and dispersants keep internal engine components clean and prevent thickening and sludging of oil.
Emulsifiers prevent water from combining with engine oil.
Corrosion and rust inhibitors protect engine parts against the effects of condensation.
All of these are correct
Engine oil with the assigned S-series designate tells us it is __________.
Slippery
Used in spark engines
Used in single-cylinder engines
Used in sequential fired engines
A symptom of a plugged engine oil cooler is __________.
An increase in oil pressure when hot
A decrease in oil pressure when hot
No engine oil pressure
A cold engine oil operating temperature
Which of the following is NOT a common contaminant that is removed by the oil filtration system?
Soot
Water
Sludge
Dirt
The best method to determine the location of an oil leak is __________.
Tracing dye
Odor
Color
Texture
What is the purpose of the oil pump?
circulate engine oil
circulate transmission fluid
pump gear oil
has no purpose
What components will we find in the Oil Sump?
Oil pick up, strainer and dipstick
Oil catch tank, filler neck and syphon
Oil hose, oil token and funnel
Oil strainer, catch tank and funnel
When should an oil filter be changed??
When you are off college?
Birthday
Christmas
Every time you change your oil
