New York State Master Electrician Practice Exam

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What is the sufficient on-premise fuel supply duration for internal combustion engines during full demand operation?

4 hours
6 hours
8 hours
12 hours

The correct answer is: 6 hours

The correct answer of six hours reflects the standard requirement for an adequate on-premise fuel supply duration when an internal combustion engine is operating at full demand. This duration ensures that the engine can maintain operations without interruption, addressing potential uncertainties in fuel delivery or supply chain disruptions. Having a six-hour fuel supply provides a balance between sufficient operational readiness and practicality. It allows for extended operations during emergencies, power outages, or other scenarios where electricity needs to be generated reliably, while also recognizing that longer durations could lead to increased storage costs and fuel deterioration concerns. The other options, while they may suggest solid operational capacities, either underestimate the necessary supply time for critical applications or exceed what is typically required for effective emergency preparedness. Thus, six hours is generally accepted as a prudent and effective period to meet operational needs without excessive resource commitment.