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Questions and Answers
What is the primary function of a fuel filter in a vehicle?
What is the primary function of a fuel filter in a vehicle?
- It introduces air into the fuel system.
- It cleans fuel of impurities before it enters the fuel injection system. (correct)
- It enhances fuel combustion efficiency.
- It regulates engine temperature.
Modern engines primarily use carburetors for fuel delivery.
Modern engines primarily use carburetors for fuel delivery.
False (B)
What component of the fuel delivery system maintains gasoline in the float chamber?
What component of the fuel delivery system maintains gasoline in the float chamber?
valve
The ___ is the part of an internal combustion engine that introduces fuel into the airstream.
The ___ is the part of an internal combustion engine that introduces fuel into the airstream.
Match the components of the fuel injection system with their functions:
Match the components of the fuel injection system with their functions:
Which of the following is NOT an advantage of electronic fuel injection?
Which of the following is NOT an advantage of electronic fuel injection?
The car fuel system is crucial for powering the engine, with the fuel tank ___ the fuel.
The car fuel system is crucial for powering the engine, with the fuel tank ___ the fuel.
Improper maintenance of the fuel filter can negatively affect engine performance.
Improper maintenance of the fuel filter can negatively affect engine performance.
Which component of the fuel system is responsible for holding fuel?
Which component of the fuel system is responsible for holding fuel?
The fuel pump is used to filter impurities from the fuel.
The fuel pump is used to filter impurities from the fuel.
What is the primary function of the fuel tank?
What is the primary function of the fuel tank?
The ______________ is a common type of fuel pump used in modern vehicles.
The ______________ is a common type of fuel pump used in modern vehicles.
What material is most commonly used to make a fuel tank?
What material is most commonly used to make a fuel tank?
Match the components of the fuel system with their functions:
Match the components of the fuel system with their functions:
Baffles inside the fuel tank help prevent fuel from sloshing during movement.
Baffles inside the fuel tank help prevent fuel from sloshing during movement.
Name one of the two types of fuel pumps mentioned.
Name one of the two types of fuel pumps mentioned.
What is a primary function of fuel lines?
What is a primary function of fuel lines?
Flexible fuel lines are typically made from steel or aluminum.
Flexible fuel lines are typically made from steel or aluminum.
What type of fuel lines are used in areas where flexibility is necessary?
What type of fuel lines are used in areas where flexibility is necessary?
Regular maintenance of fuel lines is essential to prevent ________.
Regular maintenance of fuel lines is essential to prevent ________.
Which statement best describes the durability requirements of fuel lines?
Which statement best describes the durability requirements of fuel lines?
Match the following fuel line characteristics with their descriptions:
Match the following fuel line characteristics with their descriptions:
What can cause fuel line leaks?
What can cause fuel line leaks?
What material is commonly used for rigid fuel lines?
What material is commonly used for rigid fuel lines?
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Study Notes
Fuel System Overview
- The fuel system is crucial to the internal combustion engine, delivering the correct fuel amount for smooth operation.
- Key components include the fuel tank, fuel pump, fuel filter, and fuel injectors/carburetor.
Fuel Tank
- Stores fuel for the engine.
- Delivers fuel to the engine when needed.
- Manages vapor pressure and airflow with ventilation.
- Constructed from materials like plastic (most common) and metal (often coated to prevent corrosion), with baffles to prevent fuel sloshing.
Fuel Pump
- Delivers fuel to the engine for combustion.
- Pumps fuel from the fuel tank via fuel lines to fuel injectors.
- Two main types: mechanical (older vehicles) and electronic (modern).
Fuel Lines
- Transport fuel from the tank to the engine.
- Made from materials like rubber, plastic, or metal, designed to withstand high pressures, temperatures, and fuel exposure.
- Key functions include fuel transfer, durability, pressure resistance, and safety.
Fuel Filter
- Cleans fuel impurities, sediments, contaminants, and rust before reaching the fuel injection system/carburetor.
- Essential for a properly functioning fuel delivery system.
- Requires regular maintenance.
Carburetor (Older Gasoline Systems)
- Introduces fuel into the airstream flowing into the engine.
- Regulates fuel flow based on engine speed and throttle position.
Fuel Injection (Modern Systems)
- Used in modern engines for fuel delivery to the intake manifold.
- Controlled by an engine management system, involving sensors, fuel pump, injectors, tubing, and valving.
- Advantages over carburetors include improved fuel economy, greater power, and uniform fuel delivery.
Conclusion
- The fuel system is critical for engine power, with each component playing a vital role.
- Essential for efficient power generation and smooth engine performance, highlighting the importance of regular maintenance.
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