Technician A says that the best way to determine if the alternator is charging the batteries with an electronically controlled diesel engine is to disconnect the positive battery cable with the engine running and determine if the engine dies. Technician B says that on a 12V system, the batteries should have an open circuit voltage measurement of less than 12.2V before performing any charging system testing. Who is correct?
A) A only
B) B only
C) Both A and B
D) Neither A nor B

Question

Quizplus · Accepted Answer

Disconnecting the battery cable while the engine is running can damage the alternator and other electrical components. Additionally, a battery with an open circuit voltage of less than 12.2V is considered discharged and should be charged before testing the charging system.

Technician a Says That the Best Way to Determine If