ASE T1 GASOLINE ENGINES QUESTIONS WITH COMPLETE SOLUTIONS!!

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 - Answer-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 - Answer-A. A closed gap on a spark plug Excessive crank case pressure can cause oil leaks? True False - Answer-True Excessive crank case pressure can be caused by worn ___ or excessive cylinder wall or liner clearances. A. Piston head B. Rings C. Seals - Answer-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 - Answer-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 headB. Cracked engine block C. Blown head gasket D. Cylinder liner seal leak - Answer-All of the above Coolant leak into a cylinder can cause what color exhaust smoke? A. White B. Bluish_grey C. Black - Answer-A. White