Safety valve的意思是（）。A、安全卡瓦B、安全阀C、安全接头D、安全开关
Safety valve的意思是（）。
- A、安全卡瓦
- B、安全阀
- C、安全接头
- D、安全开关
相关考题：
The globe valve has a bulbous body, housing a valve seat and screw down plug or disc arranged at right angles to the axis of the pipeAccording to the above sentence, which of the following statements is not true?A.The profile of the valve is like a globeB.The valve seat is set into the bulbous bodyC.The plug or disc of the valve is made vertical to the axis of the pipeD.The valve seat is located at right side of the plug or disc
HSE是指( )。 A、harmony,safety,education的缩写B、harm,service,energy的缩写C、health，safety，environment的缩写D、health，safety，energy的缩写
The fuel oil supply system to an automatic auxiliary boiler, will automatically shutdown if the boiler ______.A.steam demand is highB.salinity is highC.safety valve simmers(爆发)D.burner flame is extinguished
The amount of LFG that may be loaded into a given tank is determined by ______．A.Checking the loading sheetB.Loading to within 1 percent of outageC.Loading to within 10 percent of the safety relief valve settingD.Filling to the maximum level indicated on the liquid level gaging device
A cargo hose is marked with the ______．A.maximum working pressureB.bursting pressureC.safety relief valve settingD.maximum temperature
初涂固化炉助燃空气压力低的英文翻译（） A、PRIME OVEN COMBUSTION AIR PRESS LOWB、PRIME OVIME COG SAFETY SHUT OFF VALVE ANTION TIME OUTC、PRIME OVERN COMBUSTION FAN NFB OFF
As soon as the ship gets alongside the wharf, you should lower the gangway and put a （）below it.A、safety netB、safety beltC、safety lampD、safety device
单选题The period of valve overlap is when （）.Athe inlet valve is openBthe exhaust valve is openCboth valves are closeDboth valves are open
单选题Which one of following statement is not true concerning the suitable sites of the direct acting relief valve and the pilot operated relieve valve?（）Athe direct acting relief valve is used for controlling lower flows and pressureBthe pilot operated relief valve is used for controlling higher flows and pressureCthe pilot operated relief valve is used for controlling lower flows and pressureDthe controlling accuracy of direct acting relief valve is worse than that of the pilot operated relief valve
单选题A carburetor is required to have a safety device called a(n)（）.Apressure releaseBbackfire flame arrestorCautomatic shut offDflow valve
单选题In readying an auxiliary water-tube boiler for a routine hydrostatic test, which of the following procedures should be undertaken prior to filling the boiler with fresh water?（）AThe safety valve escape piping should be disconnected from the valve body and a blank insertedBThe boiler vent valves should be openedCAll hand-hole/manhole covers should be tightened up as much as possible to preclude any leaksDAll of the above
单选题In readying an auxiliary water-tube boiler for a routine hydrostatic test, which of the following procedures should be undertaken prior to filling the boiler with fresh water?（）AThe safety valve escape piping should be disconnected from the valve body and a blank insertedBThe boiler vent valves should be openedCAll handhole/manhole covers should be tightened up as much as possible to preclude any leaksDAll of the above
单选题The amount of LFG that may be loaded into a given tank is determined by（）.Achecking the loading sheetBloading to within 1 percent of outageCloading to within 10 percent of the safety relief valve settingDfilling to the maximum level indicated on the liquid level gaging device
单选题Valve lash, or clearance refers to the （）Aclearance between the top of the valve stem and the rocker armBcompression of the valve springsCclearance between the valve seat inserts and the headDout of roundness of the fuel injection cams
单选题The safety valve should be （） in the presence of C/E and Surveyor.Atightened upBsealed upCopened upDunscrewed
单选题To add refrigerant to the low side of an air conditioning system, the refrigerant should be introduced through the （）Asuction service valve as a vaporBsuction service valve as a liquidCdischarge service valve as a vaporDcharging valve as a liquid
单选题To add refrigerant to the high side of an air conditioning system, you should introduce the refrigerant through the （）.Adischarge service valve as a vaporBsuction service valve as a liquidCcharging valve as a liquidDcondenser purge valve as a vapor
单选题（） supplies pilot air to control the cylinder air start valves.AAn air compressorBAn indicator cockCAn air distributorDA safety valve
单选题Valve cages are used on some large diesel engines to （）Areduce wear on the valve stemBpermit the use of alloy valve seat materialsCreduce heat transfer from the valve seatDfacilitate valve removal for servicing
单选题In some type of two-stroke engines, besides some small holes for（）, starting valve, safety valve, indicator cock, and central opening in each cylinder cover for mounting the（）Afuel valves；exhaust valveBexhaust valves；inlet valveCfuel valves；inlet valveDexhaust valves；fuel valve