Understanding Carburetors in Engines

Front

What is the primary function of a carburetor in an engine?

Back

To mix the right amount of gasoline with air

Front

What happens when an engine "runs lean"?

Back

The engine may not run or could be damaged

Front

What is a consequence of an engine "running rich"?

Back

The engine may flood and run poorly

Front

Why are carburetors still used in small equipment like lawn mowers and chain saws?

Back

They are simple and inexpensive

Front

Which of the following is NOT a primary job of a small gas engine carburetor?

• To work when the engine is cold
• To work when the engine is idling
• To work when the engine is wide open
• To increase the engine's speed

Back

To increase the engine's speed

Front

What is becoming nearly universal in new cars for better fuel efficiency and lower emissions? Options: Carburetors, Fuel injection, Turbochargers, Superchargers

Back

Fuel injection

Front

What is the effect of a carburetor mixing too much fuel with air?

Back

The engine runs rich

Front

Potential problem when an engine "runs rich"?

Back

The engine stalls easily

Front

What is one reason why fuel injection is preferred over carburetors in new cars?

Back

It provides better fuel efficiency

Front

What is a lean mixture?

Back

If there is not enough fuel mixed with the air