Engine fundamentals, classifications and construction.

Technician A says the engine 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 right?

• A only

• B only

• Both A and B

• Neither A nor B

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?

• One

• Two

• Three

• Four

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

• Smoothes engine operations

• 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 bearings

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

• Piston

• Camshaft

• Valve train

• Thrush 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 blow by. Technician A says the engine could have a cracked flywheel. Technician B says the compression rings could be worn. Who is right.

• A only

• B only

• Both A and B

• Neither A nor B