Which is a false statement regarding generators?

The statement about running a generator under minimal load maintaining optimal efficiency is false because generators typically perform best when they operate at or near their rated capacity. When a generator runs under minimal load, it can lead to incomplete combustion, buildup of carbon deposits, and a decrease in overall efficiency. This condition, known as "wet stacking," can damage the engine over time and reduce its lifespan.

In contrast, gasoline generators are indeed frequently utilized for critical backup power situations, as they are portable and can provide sufficient power for essential appliances during outages. Low voltage generators are also designed to be compatible with residential power needs, making them suitable for home use. The capability for all generators to start above 40°F conditions refers to the operational limits of many generators, indicating that most will function effectively in moderate temperature conditions, although extreme temperatures can affect performance.