正确答案: D

cams

题目：Because the timing of injection is crucial, _____ mounted on the camshaft, which is driven by the crankshaft are used to operate the fuel pumps, one of which is provided for each cylinder.

解析：D

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

disengaging the clutch firstly, then stopping the main engine

[单选题]下列说法不正确的是：I、一艘直航船在驶往锚地的过程中准备而采取减速措施是违背保速保向的要求的；II、一帆船因风力太小而无法保速保向就不应视为直航船；III、一艘直航船若未履行保速保向的义务，则采取的行动应能导致与让路船在安全的距离驶过

II、III

[单选题]下列关于乙类火的说法错误的是：_______。

易燃或可燃液体、可溶固体、液化气体、润滑质和类似的物品着火称为乙类火。

[单选题]干舷

freeboard

[单选题]直航船行动条款适用于________。

互见中

[单选题]关于柴油机增压下列说法正确的是( )。

增压是为了提高柴油机的动力性

[单选题]船舶在A4海区遇险，可使用的船对岸的报警设备是_____。

406MHzEPIRB

[单选题]The Restricted parts of a SSP are kept on board by

the SSO