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WorksheetsLubrication
Total questions: 53
Worksheet time: 35mins
The lubricating oil used in an automotive engine ________________.
carries heat away from engine parts.
helps provide a seal between the pistons rings and the cylinder walls.
carries contamination away from moving parts.
All of the above.
A large repair facility recycles its used motor oil. Technician A says that only about one quart of high-quality oil can be recovered from each gallon of used oil that is recycled. Technician B says the recovery rate is about two and one-half quarts per gallon. Who is right?
tech a`
tech b
both
neither
When checking hose conditions, which would indicate the need for replacement?
Softening.
Hardening
cracks and abraisions
all the above
If you find fluid dripping from a vehicle, where is the likeliest direction to look for the actual leak?
Directly above the drip point.
Above and behind the drip point.
Above and in front of the drip point.
Immediately to the left or right of the drip point.
When changing engine oil, Technician A says the engine oil should be warm. Technician B says the oil should be cool. Who is right?
tech a
tech b
both
it makes no difference
When checking radiator coolant levels by removing the radiator cap, the coolant level should be ____ with the top of the filler neck.
even
1" below
1/2" below
3/8" below
Engine coolant consists of ____.
Water and Antifreeze
Pure Antifreeze
oil and antifreeze
water only
Which of the following contaminants is not likely to be found in transmission oil?
Dirt
Friction material
moisture
gasoline
A long screwdriver can be used like a stethoscope to listen to engine sounds.
true
false
If certain fluids are not changed at recommended intervals, they can cause damage to vehicle systems.
true
false
A filter wrench should be used to “snug up” the filter after an oil change.
true
false
Transmission fluid should be checked with the engine warmed up and running and the gear selector in “Park.”
true
false
If examination reveals rusty engine coolant, the system should be drained and filled with new coolant.
true
false
Most batteries today do not require periodic refilling with electrolyte.
true
false
Vehicle door locks should be oiled periodically for smooth operation.
true
false
All manual transmissions should have their fluids changed at the recommended interval.
true
false
When changing a vehicle’s oil and filter, you should wear a face shield and gloves.
true
false
Automatic transmission fluid should be changed if it smells burned.
true
false
2. At high temperatures, petroleum products tend to ______________.
thicken
thin out
stay the same
none of the above
____________ oils are designed to be used where there are extreme
temperature changes.
single-viscosity
multiple-viscosity
straight weight
None of the above
10W-30 is a ____________ oil.
Single viscosity
Multi Viscosity
straight weight
none of the above
Which of the following engine oil additives is used to prevent a condition
caused by the egg beater effect of rotating parts?
a. Oxidation inhibitors
Foam Inhibitors
Anti Wear additives
Stop Leak
Lubrication service should include washing of the windshields.
true
False
Fluids at operating temperature cannot burn you
True
False
Overfilling can cause oil foaming
True
False
True or False? Engine lubrication systems have a pressure relief valve.
True
False
Bonus:
If an engine suddenly has multiple oil leaks from multiple gaskets what would the most likely cause be?
Clogged PCV Valve
A plugged oil filter
A clogged heater core
Low engine compression
A fluids resistance to flow is:
Thickness
Pour-ability
Viscosity
Grade
Which one of the following is NOT the property of a good lubricant
Takes up the surface pressure between sliding parts
Becomes thicker after prolonged use
No change in viscosity due to variation in temperature
Reduces friction between machine parts
Lubricating oil
Minimizes wear in moving parts
Helps in keeping the parts cool
Washes away and carries away dirt
All of the above
____________ is the property of lubricating oil due to which the oil particles stick with the metal surfaces.
Oiliness
Pour point
Adhesiveness
None of the mentioned
Most commonly used lubrication system in automobiles is the
splash system
pressure system
petrol system
gravity system
The oil filter cleans the oil and stores debris down too
3mm
1mm
0.5mm
1 Micron
2. At high temperatures, petroleum products tend to ______________.
thicken
thin out
stay the same
none of the above
____________ oils are designed to be used where there are extreme
temperature changes.
single-viscosity
multiple-viscosity
straight weight
None of the above
Which of the following engine oil additives is used to prevent a condition
caused by the egg beater effect of rotating parts?
a. Oxidation inhibitors
Foam Inhibitors
Anti Wear additives
Stop Leak
Overfilling can cause oil foaming
True
False
BEFORE DRAINING OIL, THE ENGINE SHOULD BE BROUGHT
TO OPERATING TEMPERATURE SO THAT _______
THE OIL FILTER BYPASS VALVE WILL NOT OPEN
THE OIL WILL HOLD CONTAMINANTS AND FLOW EASILY
THE ENGINE WILL BE EASIER TO WORK ON
ALL OF THE FITTINGS WILL MOVE EASIER
WHICH OF THE FOLLOWING STATEMENTS OF OIL VISCOSITY IS NOT TRUE?
IN THE API SYSTEM OF OIL VISCOSITY CLASSIFICATION, THE LIGHTER OILS RECEIVE A HIGHER NUMBER
THE ABILITY OF OIL TO FLOW IS ITS VISCOSITY
OIL FLOW IS IMPORTANT TO THE LIFE OF AN ENGINE
Lubrication reduces
Friction at contact surface
Wear and tear
All of the above
Can you guess the name of the component shown below? It's a crucial part of a vehicle's lubrication system!
Oil sump
Oil filter
Oil strainer/pick up
Oil pump
Can you guess the name of the component shown below? It's a crucial part of what keeps engines running smoothly!
Oil pressure relief valve
Oil pump
Oil filter bypass valve
Oil main gallery
Can you guess the name of the component shown below? It's a crucial part of an engine's heart!
Piston oil control/scraper ring
Piston compression ring
Piston gudgeon pin
Connecting rod
Can you guess the name of the component shown below? It's a crucial part of what makes many machines tick!
Crescent type oil pump
Gear type oil pump
Water pump
Eccentric rotor oil pump
Can you guess the name of the component shown below? It's a bit of a puzzle, but I believe in you!
Crescent type oil pump
Gear type oil pump
Power steering pump
Eccentric rotor oil pump
Can you guess the name of the component shown below? Hint: It's a type of oil pump!
Crescent type oil pump
Gear type oil pump
Gearbox oil pump
Eccentric rotor oil pump
Can you guess the name of the component shown below? Hint: It's not as baffling as it seems!
Baffle plate
Oil pick up pipe
Cam cover
Oil temperature sensor
The most vital parts are fed with lubricant...
without pressure, or gravity and splash feeds
Gravity and splash feeds only
Under pressure, also with gravity and splash feeds
with some pressure only
