When running a large, dual fuel, main propulsion diesel engine on heavy fuel, which of the following precautions should be observed when switching from heavy fuel oil to diesel oil?

Question

Accepted Answer

The temperature of the fuel from the preheater should be gradually reduced after switching over the three-way valve

Answer

The heating steam must be secured before the diesel oil passes through the three-way valve

Answer

The diesel oil must never be allowed to mix with the heavy fuel

Answer

The heating steam to the preheater should be increased as soon as the diesel fuel passes through the three-way valve

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