AUT108 Engine Performance Pre/Post Test

Manufacturers design their ignition systems to have an amount of _______ above the _______ so that misfire is prevented.

• Required voltage; reserve voltage

• Reserve voltage; required voltage

• Both A and B

• Neither A nor B

Spark plugs either use a ________ design or a washer type of gasket to form a seal between the spark plug and the cylinder head.

• Combustion

• Rough

• Smooth

• Taper

Tech A states that contact breaker point ignition systems were used on earlier vehicles. Tech B states that these systems required regular maintenance to run properly. Who is correct?

Select one:

• Tech A

• Tech B

• Both A and B

• Neither A nor B

Tech A states that ignition modules are used in virtually every type of ignition system except the contact breaker point system. Tech B states that ignition modules are also used in the contact breaker point system. Who is correct?

Select one:

• Tech A

• Tech B

• Both A and B

• Neither A nor B

The main advantage of the distributor-less ignition system is the elimination of all the mechanical parts included in a distributor assembly such as all of the following EXCEPT:

Select one:

• bushings.

• bearings.

• the breaker plate assembly.

• cam angle sensors.

Tech A says that a slightly lean mixture offers good fuel economy and low exhaust emissions. Tech B says that a mixture that is too rich fouls spark plugs and causes incomplete burning. Who is correct?

Select one:

• Tech A

• Tech B

• Both Techs A and B

• Neither Tech A nor B

A _______ carries fuel from the tank to the engine.

Select one:

• Fuel pump

• Fuel filler neck

• Fuel rail

• Fuel supply line

Gasoline direct injection (GDI) places the fuel injectors in the cylinder head where they can spray fuel directly into the combustion chamber.

Select one:

• True

• False

The carburetor supplies the engine with the correct air fuel mixture for all conditions of operation.

Select one:

• True

• False

About how much signal voltage is generated by a throttle position sensor at closed throttle?

Select one:

• 1 volt

• 10 volts

• 50 volts

• 100 volts