Engine : Electricity - 838/1386
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| A thermal-magnetic circuit breaker for a 300 KW alternator is rated at 500 amperes at full continuous load. Which of the following conditions will trip the breaker? |
| A) Sustained current draw of 450 amperes for 2 hours. |
| B) Sustained current draw of 500 amperes for 10 minutes. |
| C) Instantaneous current draw of 5,000 amperes. |
| D) Momentary current draw of 1000 amperes for 3 seconds. |
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