单选题船用活塞式空压机的理论排气量等于()。A低压缸的活塞行程容积B高压缸的活塞行程容积CA+BD(A+B)/2
单选题
船用活塞式空压机的理论排气量等于()。
A
低压缸的活塞行程容积
B
高压缸的活塞行程容积
C
A+B
D
(A+B)/2
参考解析
解析:
暂无解析
相关考题:
单选题Which of the listed precautions should be taken when cleaning the internals of a motor with compressed air?()AOpen the machine on both ends so as to allow the air and dust to escapeBBe certain that the circuit breaker is opened and tagged on the feeder panelCBe certain that the air is clean and as dry as possibleDAll of the above
单选题在能见度不良水域中或其附近时,不论白天还是夜间,失去控制的船舶、操纵能力受到限制的船舶,限于吃水的船舶、帆船、从事捕鱼的船舶以及从事拖带或顶推他船的船舶,应以每次不超过()的间隔连续鸣放3声,即一长声继以二短声。A1minB2minC3minD4min
单选题High exhaust temperatures from all of cylinder of a turbocharged, four-stroke/cycle diesel engine can be caused by an()Ainoperative turbochargerBinadequate fuel supplyCoverload on one cylinderDunequal load distribution
单选题Inerting means().Athe introduction of inert gas into a tank with the object of reducing the oxygen content to below 8% by volumeBthe introduction of inert gas into a gas free tank for the purpose of reducing the oxygen content to below 8% by volumeCthe introduction of inert gas into a cargo tank during cargo discharge to replace the volume of discharged cargoDAll of the above
单选题The term PROLONGED BLAST refers to().Aa blast of from five to seven seconds' durationBa blast of from five to six seconds' durationCa blast of from four to six seconds' durationDa blast of from six to seven seconds' duration
单选题用差压变送器测锅炉水位时,常采用参考水位罐。为使水位上升时,变送器输出也随之增大,则测量水位管应接(),参水位管应接(),同时进行负迁移。A正压室;负压室B正压室;正压室C负压室;正压室D负压室;负压室
单选题Pinching of the cargo hose between the vessel and the dock should be prevented by().Aadjusting the hose supportsBlaying out an excess length of hose on deckCtying off the topping lifts and runners to winch headsDAll of the above
单选题What does MBDD mean on the load waterline mark?().ATimber tropical load waterlineBTimber summer load waterlineCTimber winter load waterlineDTimber winter north Atlantic load waterline
单选题()既是托运人办妥货物托运和出口手续的证明,又是船公司下达给船长接受货物装船承运的命令。A托运单B装货单C载货清单D提单