Battery, Starting and Charging final exam

What is the purpose of the starting system?

• Convert electrical energy into mechanical

• Convert chemical energy into electrical

• Convert mechanical energy into electrical

What is the purpose of the automotive charging system?

• To start the engine

• To keep the battery voltage maintained when the car is running

• Measure voltage

• To help cool the electrical devices

True or False: An alternator produces a Alternating Current (AC).

• True

• False

True or False: Today's automobiles operate using direct current.

• True

• False

What is the name of an electrical device that only allows current flow in one direction. Otherwise known as a electrical check valve?

• Fuse

• Diode

• Photocell

• Multi-meter

The alternator rotor spins inside the alternator stator.

• True

• False

The alternator is rotated by harnessing mechanical energy from the?

• The crankshaft pulley

• An external electric motor

• The battery

• Air spinning the fan on the alternator

A normal charging voltage when the engine is idling is?

• 12.6 volts

• 14.2 volts

• 13.3 volts

• 15.2 volts

A technician finds a voltage drop of 2.2 Volts on the positive cable from the alternator to the battery. Does this indicate?

• A good circuit

• High resistance on the positive cable

Answer explanation

This would only leave 12 volts for the battery

Automotive batteries have ________ cells?

• 5

• 6

• 12

• xxxxxx