A high spike on an oscilloscope can indicate what?
A. A closed gap on a spark plug
B. An disconnected or open spark plug wire
C. A short in the spark plug wire correct answers B. An disconnected or open spark plug wire
A low spike line on an oscilloscope can indicate what?
A. A closed gap on...
ASE T1 GASOLINE ENGINES (A+ Guaranteed Answers)
A high spike on an oscilloscope can indicate what?
A. A closed gap on a spark plug
B. An disconnected or open spark plug wire
C. A short in the spark plug wire correct answers B. An disconnected or open spark plug wire
A low spike line on an oscilloscope can indicate what?
A. A closed gap on a spark plug
B. An disconnected or open spark plug wire
C. A short in the spark plug wire correct answers A. A closed gap on a spark plug
Excessive crank case pressure can cause oil leaks?
True
False correct answers True
Excessive crank case pressure can be caused by worn ___ or excessive cylinder wall or liner clearances.
A. Piston head
B. Rings
C. Seals correct answers B. Rings
Bluish-grey or white grey smoke from the exhaust can indicate what?
A. Coolant in engine
B. Fuel not burning
C. Oil consumption correct answers C. Oil consumption
When loss of pressure during a coolant pressure test, with no evidence of external leak, what could be the
cause?
A. Cracked cylinder head
B. Cracked engine block
C. Blown head gasket
, D. Cylinder liner seal leak correct answers All of the above
Coolant leak into a cylinder can cause what color exhaust smoke?
A. White
B. Bluish_grey
C. Black correct answers A. White
Combustion gasses escaping into the cooling system will cause what to appear in the radiator while the
engine is running?
A. Discoloration
B. Coolant level to decrease
C. Bubbles correct answers C. Bubbles
Milky engine oil can indicate what? correct answers Coolant in the crank case oil supply
What test can you use to determine where the combustion gasses are escaping into the coolant reservoir
correct answers Cylinder cut out test
Excessive white smoke in the exhaust can indicate what?
A. Internal Coolant leak
B. Unburned fuel
C. Excessive fuel for the amounts of air drawn into the cylinders correct answers B. Unburned fuel
Black exhaust smoke can indicate what?
A. Internal Coolant leak
B. Unburned fuel
C. Excessive fuel for the amounts of air drawn into the cylinders correct answers C. Excessive fuel for the
amounts of air drawn into the cylinders
Engine noises are generally caused by lack of oil and ?
A. Excessive oil consumption
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