Understanding Automotive Fuel Pumps

What are the two main types of fuel pumps used in automotive applications?

• Centrifugal and axial pumps

• Electric and mechanical pumps

• Rotary and reciprocating pumps

• Submersible and jet pumps

Which principle does an electric fuel pump primarily operate on?

• Electromagnetic induction

• Positive displacement

• Centrifugal force

• Hydraulic pressure

What is a common symptom of a failing fuel pump?

• Overheating engine

• High fuel efficiency

• Engine stalling or not starting

• Excessive exhaust smoke

Which of the following is a recommended maintenance tip for fuel pumps?

• Regularly replace the fuel filter

• Use a higher octane fuel than recommended

• Frequently run the vehicle on a low fuel level

• Add sugar to the fuel tank

What is a key difference between electric and mechanical fuel pumps?

• Electric pumps are quieter than mechanical pumps

• Mechanical pumps are used in diesel engines only

• Electric pumps are mounted on the engine block

• Mechanical pumps require an external power source

Which of the following is a common cause of fuel pump failure?

• Using synthetic oil

• Contaminated fuel

• Over-inflated tires

• Excessive idling

What is the first step in the fuel pump installation procedure?

• Connect the electrical wiring

• Remove the fuel tank

• Disconnect the battery

• Install the new pump

How does a mechanical fuel pump typically operate?

• By using a diaphragm and lever mechanism

• Through a series of gears and belts

• By magnetic levitation

• Using a turbine and impeller

What is the main advantage of an electric fuel pump over a mechanical one?

• Lower cost

• Higher fuel pressure

• Simplicity in design

• Less power consumption

Which of the following is NOT a step in the fuel pump installation procedure?

• Reconnect the battery

• Test the fuel pressure

• Install the fuel tank before the pump

• Prime the fuel system