petrol fuel injection quiz

Which of the following best describes single-point fuel injection?

• Fuel is injected directly into each cylinder.

• Fuel is injected at a single point before the intake manifold.

• Fuel is injected at multiple points along the intake manifold.

• Fuel is injected directly into the combustion chamber.

A key characteristic of single-point injection is:

• Precise control over fuel delivery to each cylinder.

• Simpler design and fewer components compared to multi-point.

• Higher fuel efficiency compared to multi-point.

• Ability to handle higher engine speeds.

In a single-point injection system, where is the injector typically located?

• In the intake port of each cylinder.

• In the throttle body.

• Directly into the cylinder head.

• On the fuel rail.

What is the primary advantage of multi-point fuel injection over single-point?

• Lower cost.

• More precise fuel delivery to each cylinder.

• Simpler design.

• Reduced emissions.

In a multi-point injection system, how many injectors are there typically?

• One, located in the throttle body.

• One per cylinder.

• Two per cylinder.

• One for every two cylinders.

Which of the following is NOT a component typically found in a multi-point fuel injection system?

• Fuel rail

• Injectors

• Throttle body injector

• Electronic control unit (ECU)

What is the primary function of a fuel injector valve?

• To regulate fuel pressure.

• To atomize and spray fuel into the engine.

• To filter impurities from the fuel.

• To pump fuel from the tank.

Fuel injectors are typically actuated by:

• Mechanical cams.

• Hydraulic pressure.

• Electrical signals.

• Vacuum from the intake manifold.

Which of the following best describes the spray pattern of a fuel injector?

• A solid stream of fuel.

• A fine mist of atomized fuel.

• Large droplets of fuel.

• Pulsating bursts of fuel.

What is the purpose of an air flow sensor?

• To measure the amount of air entering the engine.

• To regulate fuel pressure.

• To control the idle speed.

• To measure the temperature of the air.