The lower end of each piston rod is reduced in diameter to fit a bore in the cross-head, this being secured to the piston rod by （）...

第1题

[单选题] When considering a vessel’s stability，which spaces in a general cargo vessel are the best locations for the carriage of bulk grain? （）

A、Deep tanks B、Lower holds C、Lower holds at the ends of the vessel D、'Tween-decks

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第2题

[单选题] The lower end of each piston rod is reduced in diameter to fit a bore in （）.

A、the crosshead B、the journals of the crosshead C、the crosshead shoes D、the guides

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第3题

[单选题] A vessel is heading magnetic east and its magnetic compass indicates a heading of 086°. Which action should be taken to remove this error during compass adjustment?（）

A、If the blue ends of the magnets are aft，and the fore-and-aft tray is at the top，you should add some magnets. B、If the blue ends of the magnets are aft you should lower the fore-and-aft tray C、If the blue ends of the magnets are aft，and the fore-and-aft tray is at the top，you should reverse the magnets D、If the blue ends of the magnets are forward，and the fore-and-aft tray is at the bottom，you should add some magnets

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第4题

[] A vessel is heading magnetic east and its magnetic compass indicates a heading of 086°.Which action should be taken to remove this error during compass adjustment（）.

A、A.If the blue ends of the magnets are aft，and the fore-and-aft tray is at the top，you should add some magnets B、B.If the blue ends of the magnets are aft you should lower the fore-and-aft tray C、C.If the blue ends of the magnets are aft，and the fore-and-aft tray is at the top，you should reverse the magnets D、D.If the blue ends of the magnets are forward，and the fore-and-aft tray is at the bottom，you should add some magnets