A、Ⅰ only
B、Ⅱ only
C、either Ⅰ or Ⅱ
D、neither Ⅰ or Ⅱ
更多“ In a medium speed diesel engine, a trunk type piston may be cooled by（）<br /> Ⅰ.oil circulation though passages in the piston crown<br /> Ⅱ.heat transfer through piston rings and liner wall”相关的问题
A、The medium speed 4-stroke trunk piston engine B、The low speed 2-stroke crosshead engine C、The medium speed 2-stroke crosshead engine D、The low speed 4-stroke trunk piston engine
A、To reduce the main engine speed B、To increase the main engine speed C、To govern the main engine speed D、To fix the propeller shaft
A、a single, long-stroke, slow-speed, turbocharged, two-stroke diesel engine B、a single, long-stroke, medium-speed, turbocharged, four-stroke diesel engine C、two medium-speed, turbocharged, four-stroke diesel engines D、a variable-speed AC generator
A、A.slow-speed diesel B、B.medium-speed diesel C、C.high-speed diesel D、D.constant-speed diesel
A、is usually cooled by sea water B、can be replaced when worn out C、is in direct contact with the water in the bore of the cylinder D、can t expand when heated
客服
TOP
查看正确答案
