單項選擇題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
B.Ⅰ ~ Ⅲ
C.Ⅰ ~ Ⅳ
D.Ⅰ + Ⅱ + Ⅳ


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1.單項選擇題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
B.overload；overspeed
C.over mechanical load；over thermal load
D.over torque；overspeed

2.單項選擇題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

3.單項選擇題The fire of burning plastics is classified as （） fire.

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

4.單項選擇題The pistons are cooled by （） oil from the forced lubrication.

A.being given
B.giving
C.supplying
D.being supplied

5.單項選擇題Engine parameters shall be corresponded to NOx Technical Files,This is required by（）

A.MARPOL Annex Ⅲ
B.MARPOL Annex Ⅵ
C.MARPOL Annex Ⅴ
D.MARPOL Annex Ⅳ