A main propulsion diesel engine on your fishing factory ship has experienced a safety shutdown on high crankcase pressure which was accompanied by an alarm. After waiting 2 hours as recommended by the manufacturer, the crankcase is opened up and suitable repairs are accomplished. After re-closing the crankcase, the engine fails to start. Which of the following would account for this?

Question

Accepted Answer

The high crankcase pressure detector protective device must be reset first before the engine can be restarted.

Answer

The high crankcase pressure detector protective device must have its diaphragm replaced first before the engine can be restarted.

Answer

The high crankcase pressure detector protective device's pressure chamber must be evacuated with a vacuum pump first before the engine can be restarted.

Answer

The high crankcase pressure detector protective device must have its switch lever replaced first before the engine can be restarted.