Engine Performance 1 Mid term

At higher engine speeds, the time available to burn the air fuel mixture _______, while the time required to completely burn the mixture remains essentially the same.

• Increases

• Stays the same

• Decreases

• None of the above

The type of ignition system in which two cylinders share one coil is called a:

• distributor ignition system.

• waste spark ignition system.

• coil-on plug ignition system.

• None of the above

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

The amount of voltage needed to initially get the spark to jump the spark plug gap is called the:

• available voltage.

• required voltage.

• induced voltage.

• None of the above

Tech A says that as engines gain miles, the spark plug gap increases, which raises the ignition system’s available voltage. Tech B says that misfire occurs when required voltage is higher than available voltage. Who is correct?

• Tech A

• Tech B

• Both A and B

• Neither A nor B

Tech A says that ignition coils are essentially transformers. Tech B says that the primary side of the coil delivers the high voltage spark that is necessary to jump the plug gap. Who is correct?

• Tech A

• Tech B

• Both Techs A and B

• Neither Tech A nor B

Ignition coils are basically:

• step-down transformers.

• step-up transformers.

• ballast resistors.

• switching transistors.

Starting is achieved by deactivating the immobilizer and _______ the ignition, fuel, and charging systems.

• Activating

• Deactivating

• All of the above

• None of the above

As the stationary winding of induction-type systems is influenced by the magnetic field, a ________ is induced in the winding each time the ________ changes.

• Voltage, resistance

• Voltage, magnetic field

• Current, magnetic field

• Current, resistance

________ are used in virtually every type of ignition system except the contact breaker point system.

• Ignition modules

• Contact breakers

• Primary circuits

• Secondary circuits