Generators are required to be equipped with which alarms?

• A. Engine High Temp Alarm/Shutdown
• B. Low Oil Pressure Alarm/Shutdown
• C. Both alarms
• D. None

Answer: (C)

Generators must have protection for the two most critical engine failure modes: overheating and loss of lubrication. An engine high temperature alarm/shutdown protects the unit from overheating, which can cause piston and head damage, warped components, or even fire risk if the engine runs too hot. A low oil pressure alarm/shutdown guards against inadequate lubrication, which leads to rapid wear, bearing failure, and possible seizure if the engine continues to run without enough oil. Because either condition can cause severe damage in a short time, having both alarms (and the ability to auto-shutdown when triggered) ensures the engine is stopped before serious harm occurs. If only one alarm were present, the other dangerous condition could go unnoticed and cause catastrophic failure.