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Worksheetsuntitled
Total questions: 10
Worksheet time: 5mins
What is the first step when trying to diagnose a problem with a vehicle?
Check the oil.
Test drive the vehicle.
Ask the customer questions.
Check the tire pressure.
Blue smoke is a sign of burning oil.
True
False
Excessive blowby is?
Pressure in the crankcase.
Seen when removing the fill cap.
Enough to push the dipstick out.
All of the above.
Black smoke is caused by excessive/unburned fuel. It can also be caused by not enough _______?
Coolant
Oil
Intake air
Speed
When performing a cylinder leakage test, air can be heard coming out of the air filter. This is a sign of an?
Head gasket problem.
Intake valve problem.
Exhaust valve problem.
Piston problem.
"Milky" oil is a sign of______ in the oil.
Fuel
Brake fluid
Coolant
Dirt
If you have coolant in the oil it is always a bad head gasket.
True
False
If every exhaust valve is bent but the intake valves are ok. Its a good chance that the engine experienced an overspeed condition.
True
False
A cylinder compression test can be performed by connecting a pressure gauge to the spark plug hole and cranking the engine.
True
False
If you don't have a stethoscope to find a noise in the engine, a long screwdriver can be used.
True
False
