液态金属密封 liquid metal seal
液态金属密封 liquid metal seal
相关考题：
A fire starting by spontaneous combustion can be expected in which condition? ______.A.Paints, varnish, or other liquid flammables are stowed in a dry stores lockerB.Inert cargoes such as pig iron are loaded in a wet conditionC.Oily rags are stowed in a metal pailD.Clean mattresses are stored in contact with an electric light bulb
单选题To function properly, oil control rings used on a diesel engine piston must distribute sufficient oil to all parts of the cylinder wall and must also（）.Aprevent any lubricant from reachingBprevent excessive lubrication from reaching the combustion spaceCProvide metal-to-metal contact to seal the cylinder against blow-byDassure a positive means of scraping carbon accumulation from the cylinder
单选题Factor influencing the position of the interface between the liquid seal and the oil in a purifier is （）.AthroughputBback pressureCgravity discDNone of the above is wrong
单选题What is an advantage of using foam in fire fighting?（）AIt is MOST effective on very hot oil fires where the temperatures of the liquid exceed 100°C (212°F)BMost foams can be used with dry chemicals to attack a fire by two methodsCFoam is effective on combustible metal firesDFoam can be made with seawater or fresh water
单选题The interface between the liquid seal (water) and the oil should be positioned （） possible to the bowl periphery.Aas far asBas soon asCas close asDas closer as
单选题Which of the following influences the position of the interface between the liquid seal and the oil in a purifier?（）AHeight of the machineBTemperature of the liquid sealCGravity discDBowl diameter
单选题To minimize the formation of carbon deposits on fuel injection nozzles, you should （）Aavoid using liquid-cooled nozzles whenever possibleBavoid low cooling water temperaturesCavoid prolonged overloading of the engineDmake certain the gasket seal between the nozzle and cylinder head is tight
单选题A fire starting by spontaneous combustion can be expected in which condition?（）.APaints, varnish, or other liquid flammables are stowed in a dry stores lockerBInert cargoes such as pig iron are loaded in a wet conditionCOily rags are stowed in a metal pailDClean mattresses are stored in contact with an electric light bulb
单选题In a purifier, the interface between the liquid seal and the oil should be positioned as close as possible to （）.Athe outlet of oilBthe outlet of waterCthe bowl peripheryDthe center of bowl