Chapter 4 Fuel Systems

Which of the following is the most popular of all small gas engine fuels?

• gasoline

• natural gas

• kerosene

• diesel fuel

Most small gasoline engines run on ______ grade gasoline with an octane rating around ______.

• premium, 93

• premium, 100

• regular, 50

• regular, 90

LP-Gas burns ______ than gasoline and has higher ignition temperatures.

• faster

• slower

Some non-diesel small engines can be converted to operate on kerosene or fuel oil through the installation of a ___ compression cylinder head and a special carburetor. 

• low

• high

A filler cap with a screw vent should be closed when the engine is not in use.

• true

• false

When is a fuel pump most likely to be used on an engine? 

• when the fuel is open

• when gravity cannot feed the fuel to the carburetor.

• when you want the engine to go faster

• everything should have a fuel pump

Fuel pumps are designed to provide fuel to the carburetor at a ____ pressure. 

• slight

• small

• heavy

• constant

Identify the parts indicated in this fuel tank cutaway for part A

• sediment reservoir

• fuel tank

• pick up tube

• filter element

Identify the parts indicated in this fuel tank cutaway for part B.

• sediment reservoir

• filter element

• pick up tube

• fuel tank

Identify the parts indicated in this fuel tank cutaway for part C.

• filter element

• fuel tank

• pick up tube

• sediment reservoir