题目内容
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[主观题]
Airtightness is the degree of airtightness of the oil and gas recovery system under a certain gas temperature state.
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发布时间：2022-01-06
题目内容
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第1题
When installing oil and gas recovery devices in the oil depot, the crane pipe must be transformed for sealing problems;The sealing property of the top crane tube can be modified, and also can be transformed into bottom hair oil.The gas collecting pipe delivers the oil and gas to the oil and gas recovery device for recovery.
第2题
A recovery nurse will ______ the patient's progress, communicating any potential problems to physicians and surgeons.
A、chart
B、recover
C、prepare
D、render
第4题
______ the angle at which he stood, he could just see the sunset.
A、If only
B、As for
C、Despite of
D、Thanks to
第5题
Oil and gas emission treatment device is commonly known as secondary recovery (post-treatment). It is a device for recovering and treating oil and gas discharged from the oil and gas recovery system by means of adsorption, absorption, condensation and membrane separation.
第6题
Centralized oil and gas recovery system: the vacuum pump is in the tanker, usually one pump and one gun.
第7题
When selecting the P/V valve, its opening pressure or vacuum should be considered in accordance with the requirements of national standards. The upcoming gb50156-2012 design and construction specifications for vehicle refueling-filling stations clearly stipulate that the working positive pressure of P/V valve should be 2-3kPa and the working negative pressure should be -1.5-2kPa.
第8题
Distributed vacuum pump: one pump at one station; all guns share one vacuum pump; the pump is at a specific position in the station; Less investment, less space, once the fault, the station operating impact.
第9题
Gas-liquid ratio is the ratio of the volume of oil and gas collected during oil and gas recovery to the volume of diesel oil added to the tank at the same time.
第10题
Gas-liquid ratio regulation equipment is divided into mechanical and electronic (solenoid valve regulation/pump frequency conversion regulation).
