Moderated by the voltage regulator, system voltage during regular car operation is around _________.
15 volts.
10 volts.
20 volts.
25 volts.
Detailed Explanation
Normally, the system voltage is around 14.5 volts. Car accessories increase the demand on the system (dropping the voltage) but this is compensated by the voltage regulator, which increases the alternator's output until the system voltage is back to approximately 15.
Take more free practice tests for other ASVAB topics with our ASVAB practice test now!