CH 11 AUTO UPKEEP FUEL SYSTEM

What is used to clean the fuel entering the engine?

Fuel pumps are either..........

On many types of engines, what measures the volume (quantity) and mass (density) of the air entering the engine...

Crude oil is a ____energy resource.

What does it mean if a fuel is very volatile?

What is the name of the technology that uses engine control systems to shut off the air-fuel mixture to some of the engine's cylinders when all the cylinders are not needed?

Ultra-low sulfur diesel contains a maximum of_____parts-per million (ppm) of sulfur.

Technician A says that gasoline is more volatile than diesel. Technician B says that distillation is the process used to refine crude oil. Who is correct?

Technician A says the higher the octane number of gasoline, the more it resists detonation. Technician B says that 93 octane is required for most cars. Who is correct?

Technician A says that an example oxygenate is sulfur. Technician B says that lead is used today in the United States to oxygenate fuel. Who is correct?