The crank chamber oil （）.

[单选题]Lubricating oil is supplied to the crank-pin bearings in a marine diesel engine by （）.A . internal crankshaft passagesB . immersion in oilC . splash lubricationD . injection lubricatio

[单选题]Each crank is made up of two crank webs joined by a common（） to which the bottom endbearing is fitted.A . throwB . crankshaftC . crankpinD . crosshead

[单选题]With the crank in position in the engine, some measurements can be taken by a special bridge gauge and （）.A . a micrometerB . a bowlC . a feeler gaugeD . a wrench

[单选题]Operating conditions in the crank chamber are very （） those in the cylinder.A . the same asB . similar toC . separated fromD . different from

[单选题]Place the plate in a chamber containing ammonia vapour.此句的意思是将层析板（ ）。A．置于密室中B．喷氨水溶液C．置于氨水溶液中D．置于含氨蒸气的密闭容器中E．以上都不对

[单选题]In the combustion chamber, the part whose surface is exposed to the highest temperature is the （）.A . cylinder linerB . cylinder coverC . pistonD . exhaust valve

[单选题]The （） chamber is enclosed between the cylinder head and piston.A . lubricationB . injectionC . coolingD . combustio

[单选题]Crank web deflection readings will give a positive indication of （）.A . worn main bearing journalsB . torsional stress deformationC . slack thrust bearingsD . bearing shells shim dimensio

[单选题]The diameter of the crank-pins should be measured with a （）.A . salinometerB . thermometerC . tachometerD . micrometer

[单选题]The crank pin journal is provided with large bores for （）.A . lubricationB . coolingC . balancing purposeD . ventilatio