名词解释题启动（priming）
名词解释题
启动（priming）
参考解析
解析：
暂无解析
相关考题：
Priming of the tides occurs ______.A.at times of new and full MoonB.when the Earth, Moon, and Sun are lying approximately on the same lineC.when the Moon is between first quarter and full and between third quarter and newD.when the Moon is between new and first quarter and between full and third quarter
Which statement is TRUE concerning deep well self-priming pumps ________．A.When loading oil cargo，it is always loaded via the discharge line through to the pump until the tank is topped offB.Stripping systems are generally eliminated for the purposes of cargo handlingC.In recent years deep well pumps have become increasingly unpopular in product tankers and medium size crude shipsD.There is no danger of damaging the pump from overheating
状态估计的启动方式：（）。A、手动启动、自动启动、定时启动三种方式。B、人工启动、周期启动、自动启动三种方式。C、人工启动、周期启动、定时启动三种方式。D、手动启动、定时启动、自动启动三种方式。
单选题Priming of the tides occurs（）.Aat times of new and full MoonBwhen the Earth，Moon，and Sun are lying approximately on the same lineCwhen the Moon is between first quarter and full and between third quarter and newDwhen the Moon is between new and first quarter and between full and third quarter
单选题Which of the following statements is correct with regards to the operation of a centrifugal cargo pump?（）AOil is discharged from the impeller through the outletBGravity causes the oil to flow toward the dischargeCThe self-priming feature of the centrifugal pump enables it to draw its own suction as it startsDThe discharge capacity varies directly with the speed of the impeller
单选题Which of the following pumps are self-priming, and can deal with liquid from a level below the pump? （） (1) reciprocating (2) rotary (3) centrifugalA（1）onlyB（1）and（2）C（1），（2）and（3）D（2）and（3）
单选题Positive displacement, helical gear pumps are well suited for pumping oil because （）Astuffing boxes eliminate the leakage problems usually associated with other gear pumpsBit is not necessary to closely maintain design clearances with this pumpCthey are essentially self-priming and produce a high suction liftDthese pumps are designed with extreme tooth angled
单选题Which of the following operating features do displacement pumps bear if they are working under no-cavitation condition?（） (1) output is almost directly proportional to speed (2) they are self-priming (3) they will develop a discharged pressure equal to the resistance to be overcome, irrespective of speedA（1）and（2）B（2）and（3）C（1）and（3）D（1），（2）and（3）
单选题To operate a centrifugal fire pump at reduced capacity, you should （）.Areadjust the relief valveBthrottle the suction lineCthrottle the discharge valveDopen the priming line
判断题内隐记忆中的启动效应（priming effect）是指对刺激信息进行有意识的加工活动和过程，即先前呈现的刺激对后来执行相同或类似刺激加工的促进和易化现象，表现为反应速度加快、正确率提高等。A对B错
单选题Which of the listed statements is correct concerning the starting of centrifugal pumps?（）AThey should always be started with the discharge valve closedBThey should always be started with the discharge valve openedCA priming pump is always required to flood the impeller suctionDThey should always be started with the sealing line valves closed
单选题（） or air venting arrangement is fitted to the fuel supply passage.AAn air pumpBA compressorCA fuel pumpDA priming
单选题When operating with a negative suction head, which of the following types of pumps will require priming?（）AReciprocatingBCentrifugalCRotaryDGear
单选题When received the order "finished with engine" which of the following operations is wrong?（）Astop the LO pump, SW pump, FW pumpBstop the priming FO transfer pumpCengage the turning gearDopen the scavenge air belts drain valve and cover the turbocharger silencer with the dustproof cover