What is the maximum generator capacity for continuous operation?

• A. 250 amps
• B. 300 amps
• C. 350 amps
• D. 400 amps

Answer: (B)

Thermal limits determine how much current a generator can sustain indefinitely. Aircraft generators are rated for a continuous output and higher short‑term overloads. The continuous rating is the maximum you can rely on without overheating, while higher values are allowed only for a brief surge before cooling catches up. Since the question asks for the maximum that can be maintained continuously, the appropriate value is the 300-amp rating. Values like 350 or 400 amps are short‑term overload capacities and cannot be sustained for long periods, and 250 amps is within the continuous range but not the maximum.