Engine_2014 : Steam Plants - 1304/1951
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| Why are two fuel oil heaters "E" provided in the fuel oil system shown in the illustration? |
| A) Each heater supplies fuel to a different boiler. |
| B) To allow fuel of different temperatures to be provided to be provided to each boiler. |
| C) To provide a backup in case one of the heaters becomes inoperable. |
| D) To provide series operation at high firing rates. |
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Illustration SG-0009
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