ASE Midterm 51-100

Ignition system wires that operate at battery voltage are considered part of the:

• Ignition coil

• Primary circuit

• Secondary circuit

• Primary windings

Primary and secondary circuits are being discussed. Technician A says that the primary circuit includes the components that carry high-voltage current. Technician B says that the primary circuit uses small conventional wires. Who is right?

• A only

• B only

• Both A and B

• Neither A nor B

What does an ignition system use to change battery voltage into high secondary voltage?

• Spark plug

• Bypass circuit

• Ignition coil

• Spark advance system

Technician A says that no coil wire is needed with an ignition coil pack. Technician B says that an eight-cylinder engine equipped with a coil pack system uses two ignition coil packs. Who is right?

• A only

• B only

• Both A and B

• Neither A nor B

A direct ignition system uses:

• spark plug wires.

• a distributor.

• one coil per spark plug.

• All of the above.

Which of the following is the measurement of a fuel’s ability to resist knock?

• Octane rating

• Cetane rating

• Cloud point

• All of the above.

A chemically correct air-fuel ratio is called a:

• rich air-fuel mixture.

• lean air-fuel mixture.

• combustible air-fuel mixture.

• stoichiometric air-fuel mixture.

Each of these is a form or result of abnormal combustion EXCEPT:

• detonation.

• ignition lag.

• engine knock.

• After-running.

An electric fuel pump will usually produce:

• 4–6 psi.

• 6–10 psi.

• 10–50 psi.

• 28–41 psi.

Which of the following can be used to block current flow to an electric fuel pump after a severe collision?

• Hose clamp

• Inertia switch

• Fusible resistor

• Fuel pump relay