Chapter 11: Test Fuel System

1

What is used to clean the fuel entering the engine?

1

Fuel pumps are either ________________.

1

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

1

Crude oil is a ________________ energy resource.

1

What does it mean if a fuel is very volatile?

1

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?

1

Which of the following would be a lean air-fuel mixture in a gasoline engine?

1

Which of the following would be a rich air-fuel mixture in a gasoline engine?

1

Some vehicles use a mechanical high pressure fuel pump that pressurizes fuel up to _____________ psi.

1

Many new vehicles use _______________ throttle controls, often called drive-by-wire or throttle-by-wire.

1

Removing __________ from diesel fuel is critical.

1

Which of the following does NOT impact the price of fuel?

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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?

1

Technician A says that 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?

1

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?

1

Technician A says that diesel engines are only used in large trucks. Technician B says that diesel fuel has more energy per volume than gasoline. Who is correct?

1

Technician A says one way to increase fuel economy is to make sure your tires are properly inflated. Technician B says one way to increase fuel economy is to avoid excessive idling. Who is correct?

4

Chapter 11: Test 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?

Which of the following would be a lean air-fuel mixture in a gasoline engine?

Which of the following would be a rich air-fuel mixture in a gasoline engine?

Some vehicles use a mechanical high pressure fuel pump that pressurizes fuel up to _____________ psi.

Many new vehicles use _______________ throttle controls, often called drive-by-wire or throttle-by-wire.

Removing __________ from diesel fuel is critical.

Which of the following does NOT impact the price of fuel?

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 that 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?

Technician A says that diesel engines are only used in large trucks. Technician B says that diesel fuel has more energy per volume than gasoline. Who is correct?

Technician A says one way to increase fuel economy is to make sure your tires are properly inflated. Technician B says one way to increase fuel economy is to avoid excessive idling. Who is correct?

What is fuel grade and why is it important?

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?

Which of the following would be a lean air-fuel mixture in a gasoline engine?

Which of the following would be a rich air-fuel mixture in a gasoline engine?

Some vehicles use a mechanical high pressure fuel pump that pressurizes fuel up to _____________ psi.

Many new vehicles use _______________ throttle controls, often called drive-by-wire or throttle-by-wire.

Removing __________ from diesel fuel is critical.

Which of the following does NOT impact the price of fuel?

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 that 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?

Technician A says that diesel engines are only used in large trucks. Technician B says that diesel fuel has more energy per volume than gasoline. Who is correct?

Technician A says one way to increase fuel economy is to make sure your tires are properly inflated. Technician B says one way to increase fuel economy is to avoid excessive idling. Who is correct?

What is fuel grade and why is it important?