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WorksheetsEngine Repair ASE
Total questions: 31
Worksheet time: 16mins
Identify the stroke:
Compression.
Exhaust.
Power.
Intake.
The freeze protection level in a cooling system can be adjusted by:
Changing the Antifreeze to Coolant ratio.
Adjusting the heater temperature setting.
Using high quality fuel.
Using synthetic engine oil.
To clean a cylinder after machining and deglazing, you should:
High pressure or hand wash with soap and water.
Use brake cleaner.
Wash with mineral spirits.
Flush engine with oil.
A vehicle overheating at idle speed could be due to:
Low A/C refrigerant.
Low engine idle speed.
Faulty cooling fan(s).
An obstructed heater core.
A vehicle overheating at highway speeds could be due to:
Failed cooling fan(s).
A damaged fan shroud.
Using a different brand of coolant.
A stuck open thermostat.
What are two methods used to inspect for cracks on an engine block?
Dye penetrant and flux capaciting.
Magnafluxing and soapy water in a spray bottle.
Soapy water in a spray bottle and dye penetrant.
Dye penetrant and magnafluxing.
Oil leaks may be caused by which of the following?
Stuck open PCV.
Plugged PCV.
Using synthetic oil.
Leaking exhaust manifold gasket.
An engine oil pan with an RTV seal is leaking oil. Technician A says the oil pan must be cleaned and new sealer should be applied. Technician B says the oil pan should be replaced and a rubber gasket installed. Who is correct?
Technician A.
Technician B.
Both A and B.
Neither A nor B.
Blue smoke emitting from the exhaust tailpipe is caused by the burning of:
Coolant.
Engine oil.
Fuel.
Water.
A cylinder head with TTY bolts is being installed. Technician A says the bolts should be lubricated and reused. Technician B says the bolts should be discarded and new bolts should be installed. Who is correct?
Technician A.
Technician B.
Both A and B.
Neither A nor B.
Identify the stroke:
Intake.
Compression.
Power.
Exhaust.
During heater operation in the defrost mode, a driver notices an oily film on the inside of the windshield. Technician A says a leaking radiator could be the cause. Technician B says a leaking heater core could be the cause. Who is correct?
Technician A.
Technician B.
Both A and B.
Neither A nor B.
Which of the following tools should be used to test the concentration of antifreeze in the cooling system?
Refractometer.
PH strips.
Voltmeter.
Thermometer.
The camshaft rotates at __________ the speed of the crankshaft.
twice
the same speed as
four times
half
A vehicle equipped with a diesel engine is being worked on. Technician A says diesel engines have a higher thermal efficiency than gasoline engines. Technician B says gasoline engines have a higher thermal efficiency than diesel engines. Who is correct?
Technician A.
Technician B.
Both A and B.
Neither A nor B.
A vehicle is brought into the shop for the third time with a failed head gasket. Which of the following could be the cause?
Bent intake valve.
Excessive cylinder compression.
Warped block deck or cylinder head.
Bent pushrod.
Which of the following can leak around the valve seals?
RTV Sealant.
Coolant.
Transmission Fluid.
Engine oil.
White smoke with a "sweet" scent emitting from the exhaust tailpipe is caused by the burning of:
Carbon.
Engine oil.
Coolant.
Nothing, this is a normal condition.
What is the first step taken during engine disassembly?
Jack up the vehicle.
Change the oil and filter.
Clean the exterior of the engine.
Perform a compression test.
Normal rod bearing clearance is:
0.001"
0.010"
0.100"
0.0001"
The procedure being performed is for finding:
Lobe height.
Lobe lift.
Lift duration.
Base circle diameter.
A turbo charged engine is emitting blue smoke from the tailpipe while driving down the road. Technician A says the valve seals will need to be replaced. Technician B says the turbocharger seals have likely failed and will need to be replaced. Who is correct?
Technician A.
Technician B.
Both A and B.
Neither A nor B.
Identify the stroke:
Exhaust.
Power.
Compression.
Intake.
An engine is being serviced. Technician A says cylinder taper is the difference between the cylinder diameter at the top and bottom of the piston ring travel. Technician B says cylinder out-of-round is the difference between the thrust and non-thrust surfaces of the cylinder wall. Who is correct?
Technician A.
Technician B.
Both A and B.
Neither A nor B.
Journal clearance is calculated by subtracting the journal diameter from the _____ diameter.
Cylinder.
Lobe.
Bore.
Piston.
During a cylinder leakage test, a hissing sound is heard coming from the throttle body. This sound indicates:
A bad exhaust valve.
Worn piston rings.
A bad intake valve.
A leaking head gasket.
Black smoke emitting from the exhaust tailpipe is caused by the burning of:
Engine oil.
Silicone.
Coolant.
Fuel.
After replacing a swollen lower radiator hose, the engine continues to overheat. Which of the following is MOST likely causing this condition?
A faulty water pump
A bad headgasket
A faulty lower replacement hose
Air in the system
A high mileage engine has a knocking sound that goes away as it warms and reaches operating temperature. Which of these is MOST likely causing this noise?
Loose crankshaft main bolts
Loose flywheel bolts
Piston to cylinder wall clearance
A loose timing belt
Technician A says to use a cylinder bore gauge to measure the cylinder's bore for excessive taper. Technician B says to measure the cylinder's bore for an out of round condition before installing new pistons. Who is correct?
Technician A.
Technician B.
Both A and B.
Neither A nor B.
Identify the stroke:
Intake.
Exhaust.
Power.
Compression.
