Small Gas Engines

If your engine is running rich there will be black smoke.

• True

• False

Tags

NGSS.MS-PS1-2

The governor connecting rod and spring connected to what?

• the throttle plate

• the choke plate

• the ignition amature

• the oil slinger

The purpose of the cylinder wall crosshatch pattern is to:

• Control lubrication of the cylinder and aid in seating new rings

• Reduce combustion temperature

• Make the piston and rings slide easier

• Cool crankcase lubricant

Tags

NGSS.MS-PS3-3

NGSS.MS-PS3-4

The top ring on a piston in a small gas engine is called a/an:

• Exhaust ring

• Oil ring

• Compression ring

• Scrapper ring

A clogged crankcase breather will cause:

• The engine to overheat

• The governor to malfunction

• Leaking oil seals and ruptured gaskets

• Negative crankcase pressure

The 4 cycle gas engine intake valve is cooled by:

• Air from the flywheel fins

• Oil from the crankcase

• Air circulating around the outside of the case of the engine

• Incoming air fuel mixture

The perforated ring on a small gas engine piston is the:

• Compression ring

• Oil ring

• Scrapper ring

• Second compression ring

The exhaust valve opens and the upward movement of the piston forces burned gasses out of the cylinder on the:

• Intake stroke

• Compression stroke

• Power stroke

• Exhaust stroke

Valve sticking can be caused by:

• Lead in the fuel

• Gum in the fuel

• Varnish from the fuel

• All of the above

What is the primary function of the carburetor in a small gas engine?

• To mix air and fuel for combustion

• To cool the engine

• To lubricate engine parts

• To start the engine