Diesel Engine Theory Review

The main purpose of an internal combustion engine is to?

• Turn burning fuel into usable power

• Burn fuel to create emissions

• Power equipment

• Make the best sounds on earth

What is the main difference between spark and compression ignition?

• How the fuel is ignited (spark plug vs. no spark plug)

• Speed of operation

• Use

• Size

The purpose of the cylinder block is to?

• House most of the engines components

• Increase combustion

• Lubrication

• House the pistons

What is the difference between a dry and wet cylinder liner?

• Whether it contacts coolant or not

• How it is installed in the engine

• Its cooling effectiveness

• Size

Pistons have how many rings?

• 1

• 2

• 3

• 4

Which piston ring is responsible for sealing off 90% of combustion inside the engine?

• Compression Ring

• Intermediate Ring

• Oil Control Ring

• Engagement Ring

The crankshaft converts up and down movement into?

• Rotary movement

• Cylindrical Movement

• Reciprocating Movement

• Fast movement

The timing gear connects all of these together in time except?

• Flywheel

• Crankshaft

• Camshaft

• Fuel Cam

The flywheel in a diesel engine differs from a small engine mainly because it has...

• Teeth for the electric starter

• More bolts

• Heavier weight

• Thinner

The camshaft actuates (moves) the valve train using...

• Cam Lobes

• Cam Plungers

• Cam Fingers

• Eggs