Generic Basic 4 Stroke Engines

Turns reciprocating motion (up and down) into rotary motion (round and round

• Camshaft
• Crankshaft
• Piston
• Valve

The definition of a cam is.

• Something that moves a valve
• A stick with bumps
• A spinning piece of metal
• Circle with an offset hole.

What is the order of operation of a 4 stroke engine

• Intake, Power, Compression, Exhaust
• Exhaust, Intake, Compression, Power
• Intake, Compression, Power, Exhaust
• Compression, Exhaust, Power, Intake

What keeps the oil below the piston, and compression above the piston?

• Bearing
• Rings
• Necklaces
• Braclets

What is valve timing?

• opening the valve at the right time
• closing the valve at the right time
• opening and closing of the valve at the right time
• not important

Of the two valves inside the engine, which one is bigger?

• Intake
• Exhaust
• Same size
• Neither

How many degrees of rotation does the crankshaft rotate to complete all the 4 stroke engine cycle.

• 180
• 360 
• 540
• 720

Fills the area of the engine called the Cylinder

• Lifter
• Filler
• Cam gear
• Piston

The Acronym TDC means...

• Telephone Direct Call
• Tread Design Correction
• Top Dead Center
• Timing Done Correctly

True or False: Diesel Engines Require SPARK Plugs 

• True
• False