When a crankshaft （） outside the engine, it should be carefully supported in a manner which will avoid imposing high bending moments on it.

[单选题]（） of an engine crankshaft can be detected by measuring deflections of crank webs for each unit of the engine.A . MisalignmentB . LengthC . StrengthD . Stresse

[单选题]The crankshaft of diesel engine is supported by （）.A . tension stretchB . tie rodsC . through boltsD . main bearing

[单选题]When a crankshaft has to be handled outside the engine, it should be carefully supported in a manner which will avoid （） high bending moments on it.A . compressingB . interposingC . imposingD . pounding

[单选题]It is abnormal that when the engine is being turned by the turning gear or by hand, （）.A . water discharges from the indicator cocksB . no water is leaking into crankcaseC . no water in the scavenge beltD . the rpm is lower than the speed of Dead Slo

[单选题]For a diesel engine, when the piston is at the （）, the clearance volume is the largest.A . TDCB . DTCC . BDCD . DBC

[单选题]With UMS, when the engine room is unwatched will control the main engineA．the bridge officer on watchB．the chief engineerC．the duty engineerD．the duty motorman

[单选题]Re-circulating the fuel when the engine is stopped can______.①keep the fuel at the correct viscosity ②cool the injectorA．①B．②C．①②D．neither ① nor ②

[单选题]In a diesel engine, when refitting piston rings you should ①check the ring gap at the smallest diameter of the cylinder ②remove carbon from the ring grooveA．①B．②C．①②D．neither ① nor ②

[单选题]With UMS, when the engine room is unwatched （） will control the main engine.A . the bridge officer on watchB . the chief engineerC . the duty engineerD . the duty motorma

[单选题]When turning the engine with turning gear, you should keep the indicator cocks （）.A . attached to the indicatorsB . openedC . closedD . broke