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启动（priming）
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更多 “启动（priming）” 相关考题
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
考题
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
考题
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。
考题
单选题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
考题
单选题Which of the following statements is correct with regards to the operation of a centrifugal cargo pump?（）A
Oil is discharged from the impeller through the outletB
Gravity causes the oil to flow toward the dischargeC
The self-priming feature of the centrifugal pump enables it to draw its own suction as it startsD
The discharge capacity varies directly with the speed of the impeller
考题
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）
考题
单选题Positive displacement, helical gear pumps are well suited for pumping oil because （）A
stuffing boxes eliminate the leakage problems usually associated with other gear pumpsB
it is not necessary to closely maintain design clearances with this pumpC
they are essentially self-priming and produce a high suction liftD
these pumps are designed with extreme tooth angled
考题
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）
考题
单选题To operate a centrifugal fire pump at reduced capacity, you should （）.A
readjust the relief valveB
throttle the suction lineC
throttle the discharge valveD
open the priming line
考题
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
考题
单选题Which of the listed statements is correct concerning the starting of centrifugal pumps?（）A
They should always be started with the discharge valve closedB
They should always be started with the discharge valve openedC
A priming pump is always required to flood the impeller suctionD
They should always be started with the sealing line valves closed
考题
单选题（） or air venting arrangement is fitted to the fuel supply passage.A
An air pumpB
A compressorC
A fuel pumpD
A priming
考题
单选题When operating with a negative suction head, which of the following types of pumps will require priming?（）A
ReciprocatingB
CentrifugalC
RotaryD
Gear
考题
单选题When received the order "finished with engine" which of the following operations is wrong?（）A
stop the LO pump, SW pump, FW pumpB
stop the priming FO transfer pumpC
engage the turning gearD
open the scavenge air belts drain valve and cover the turbocharger silencer with the dustproof cover
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