单项选择题X 纠错

When a ship is entering to shallow water, ship resistance will be increased and the speed of main engine reduced.Due to the function of the governor, the main engine will（）

A.reduce fuel feeding
B.increase fuel feeding
C.keep original fuel feeding
D.be overspeed

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Whether a ship is sailing before the wind or sailing in the rough sea, we must reduce the fuel injection of the main engine.For the former one, it aims to prevent the main engine being（）, while for the later one, it aims to prevent the main engine being（）.

A.overspeed；overload
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单项选择题

While sailing under normal weather and sea condition, the basic parameter which is used to restrict the fuel injection of main engine is （）

A.power of main engine
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If keep the fuel injection of main engine unchanged when ship is fouled, that will causeⅠ.The speed of main engine to be reduced Ⅱ.Ship speed to be reduced Ⅲ.The resistance torque of propeller to be increased Ⅳ.Trim at stern to increase（）

A.Ⅰ + Ⅱ
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C.Ⅰ ~ Ⅳ
D.Ⅰ + Ⅱ + Ⅳ

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单项选择题

When a ship is fully loaded, it needs to prevent the main engine to be（）.While a ship is fully empty, it needs to prevent the main engine to be（）.

A.overspeed；overload
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C.over mechanical load；over thermal load
D.over torque；overspeed

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单项选择题

When ship is fouled, increasing the fuel injection for keeping the normal speed will cause the main engine （）

A.to work as overload characteristic
B.overspeed
C.over mechanical load only
D.over thermal load only

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The fire of burning plastics is classified as （） fire.

A.Class A
B.Class B
C.Class C
D.Class D

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The pistons are cooled by （） oil from the forced lubrication.

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Engine parameters shall be corresponded to NOx Technical Files,This is required by（）

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Ships do not permitted to the TBT paint after 2008，It is required by（）

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