General Engine Maintenance Test

Technician A says the camshaft converts reciprocating motion of the piston into rotary motion for power output. Technician B disagrees and says the crankshaft performs this function. Who is correct?

• Technician A only
• Technician B only
• Both Technicians
• Neither Technician

The distance a piston travels up or down in a cylinder is limited by the:

• Flywheel
• Camshaft
• Crankshaft
• Valve train

The air-fuel mixture is actually burned during the:

• Power Stroke
• Intake Stroke
• Exhaust Stroke
• Compression Stroke

How many crankshaft rotations are needed to complete the four-stroke cycle?

• 1
• 2
• 3
• 4

Automobile engines normally have:

• Four cylinders
• Six cylinders
• Eight cylinders
• All the above

A flywheel performs each of these functions EXCEPT:

• contains a gear used for engine starting
• smooths engine operation
• provides lubrication to parts
• connects crankshaft to transmission

Which of the following causes piston movement during non power producing strokes?

• Flywheel
• Connecting Rod
• Counterweights
• Main Thrust Bearing

Which of the following components transfers combustion pressure to the crankshaft and connecting rods?

• Piston
• Camshaft
• Valve Train
• Thrust Bearing

Which of the following keeps a piston from tipping in its cylinder?

• Piston Pin
• Piston Boss
• Piston Skirt
• Piston Head

An engine has been diagnosed with blowby. Technician A says the engine could have a cracked flywheel. Technician B says the compression rings could be worn. Who is correct?

• Technician A Only
• Technician B only
• Both technicians
• Neither Technician