When the ship, its main propulsion device equipped with clutch, arrived at the port and finished with the engine, the correct operation should be______.

A．disengaging the clutch firstly, then stopping the main engine

B．stopping the main engine firstly, then disengaging the clutch

C．stopping the cooling water pump firstly, then stopping the main engine

D．stopping the main engine and disengaging the clutch at the same time

[单选题]When a ship were found its equipment does not correspond substantially with the particulars of the Certificate by a nominated surveyor and corrective actions unable to be taken, thenA．the Certificate would be withdrawnB．the ship owner would be finedC

[单选题]In a main propulsion turbocharged diesel engine, the speed of the turbocharger varies according to the _____.A．governor droopB．speeder spring tensionC．fuel rack lagD．load on the engine

[单选题]The main propulsion diesel engine jacket water temperature rises above normal, with the raw sea suction and the expansion tank water level being normal. Which of the following problems is most likely the cause?A．Faulty thermostatic bypass valveB．Erod

[单选题]The main propulsion diesel continues running after you try to shut down. You should now attempt to .A．stop the fuel oil booster pumpB．engage the jacking gearC．secure the lube oil pumpD．shut off the fuel at the settling tank

[单选题]On a medium-speed main propulsion diesel engine, the crank-pin or crank journalbearings receive lubricating oil from( ).A．a spindle lubricatorB．an oil jetC．internal splashingD．drilled passages in the crankshaft

[单选题]Among the main propulsion units on board the ship with the same capacity, the lightest one is（）.A . steam engineB . steam turbineC . gas turbineD . diesel engine

[单选题]Control of the main propulsion diesel engines can be shifted from the engine room to the wheelhouse from the （）.A . wheelhouse control stationB . engine room control stationC . captains officeD . chief engineers office

[单选题]When the ship is going to enter into the harbor, ____.A．change from heavy fuel oil to diesel oil for main engineB．pumping out bilge waterC．change sea chest from high level one to lower level oneD．test emergency generator

[单选题]In a large, slow-speed, main propulsion diesel engine, which of the parts listed is under tension when the engine is running?（）A . Bed plateB . ColumnC . EntablatureD . Tie rod

[单选题]On a medium-speed main propulsion diesel engine, the crank-pin or crank journal bearings receive lubricating oil from （）.A . a spindle lubricatorB . an oil jetC . internal splashingD . drilled passages in the crankshaft