Weekly Automotive Quiz 10/1/2021

The device used to control alternator field current is the

• diode trio

• stator

• rectifier bridge

• voltage regulator

Before testing a charging system, the vehicle must have

• a fully charge battery

• a well-tuned engine

• proper ignition timing

• a discharged battery

Alternator diodes are used to convert

• AC to DC

• DC to AC

• mechanical energy to electrical energy

• electrical energy to mechanical energy

An indication of alternator output can be obtained by

• verifying that the alternator is grounded

• comparing battery voltage with the engine off and engine running

• cranking the starter for 15 seconds

• Load testing for 15 seconds

If three lamps of 2 Ohms, 6 Ohms and 10 Ohms are connected in series, their total resistance value in Ohms is

• 6 Ohms

• 9 Ohms

• 12 Ohms

• 18 Ohms

Which of the following circuits has two or more paths for the current to flow?

• a series circuit

• a parallel circuit

• an open circuit

• a spilt phase circuit

When replacing a open(blown)fuse,

• one of a higher capacity is acceptable

• one of the same capacity should be used

• one of a lesser capacity is preferred

• a jumper wire can be substituted

When replacing electrical components,

• disconnect the battery ground cable

• disable the ignition system

• use only insulated wrenches

• isolate the alternator to prevent damage

Which of the following solid-state devices can be used in place of a relay

• photo cell

• transistor

• resistor

• LED

What supplies energy in an electric

circuit?

• conductor

• light bulb

• battery