单项选择题
A.overspeed;overload B.overload;overspeed C.over mechanical load;over thermal load D.over torque;overspeed
When ship is fouled, increasing the fuel injection for ...
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
The fire of burning plastics is classified as () fire.A...
单项选择题The fire of burning plastics is classified as () fire.
A.Class A B.Class B C.Class C D.Class D
The pistons are cooled by () oil from the forced lubric...
单项选择题The pistons are cooled by () oil from the forced lubrication.
A.being given B.giving C.supplying D.being supplied