Engine : Expired / Motor Plants and Auxiliary Boilers - 509/354
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| The purpose of the interlocked three-way valve shown in the illustration is to __________. Illustration MO-0058 |
| A) recirculate fuel through the heater during warm-up |
| B) control the rate of fuel oil flow to the engines |
| C) act as an emergency fuel shut off, regardless of the fuel being used |
| D) change fuel from heavy to light oil or vice-versa while insuring that oil is returned to the proper day tank |
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Illustration MO-0058
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