AUT108 Mid Term Exam

Sequential injection means injection occurs in the sequence of the firing order.

Select one:

• True

• False

The sock typically consists of a ______, which prevents most small particles from being drawn into the fuel pump and sent through the rest of the fuel system.

Select one:

• Paper filter

• Fine mesh

• Plastic screen

• Aluminum alloy screen

The pressure between the pump and the injectors can be maintained by _________.

Select one:

• Varying the speed of the pump

• Input from the driver

• Both A and B

• None of the above

When the voltage reaches the point where current is flowing in the secondary circuit, the _______ drops to a much lower level, just sufficient enough to sustain current flow and the spark.

Select one:

• Reserve voltage

• Low voltage

• High voltage

• Required voltage

Types of fuel line connections include all of these EXCEPT:

Select one:

• banjo bolt fittings.

• quick couplings.

• flare fittings.

• compression fittings.

Tech A says that electric fuel pump pressure can often be tested by accessing a test port. Tech B says that electric fuel pump volume can be affected by the condition of the fuel injectors. Who is correct?

Select one:

• Tech A

• Tech B

• Both Techs A and B

• Neither Tech A nor B

Which of the following is NOT one of the three basic EFI systems?

Select one:

• Throttle body injection (TBI)

• Multipoint fuel injection (MPFI)

• Computer-controlled carburetor injection

• Gasoline direct injection (GDI)

All of the following are valid ways to relieve the static pressure in the fuel system before removing the fuel lines EXCEPT:

Select one:

• removing the fuel pump relay or the fuel pump fuse and running the engine until it dies.

• connecting a fuel pump pressure gauge (that has a bleed valve) to the fuel rail test point, and releasing the excess pressure from the system into a gas can.

• on GDI equipped engines, using a scan tool to release the fuel pressure.

• using fuel filter lines.

What part is this?

• Carburetor

• TBI Injection system

• Fly by wire Throttle Body

• Throttle Body

A fuel pump can be tested using a lab scope and a low-amp clamp to:

Select one:

• graph the current flow.

• measure the fuel pressure.

• measure the volume.

• test for pressure loss due to leaks.