A、rise quickly
B、rise slowly
C、drop quickly
D、drop slowly
更多“When a sudden increase in steam demand occurs from the boiler, the water level in the drum at the higher pressure will（）”相关的问题
A、then B、than C、when D、after
A、which the sudden operational failure B、that the sudden operational failure C、the sudden operational failure D、the sudden operational failure of which
A、sudden evaporation of wax crystals in the lubricant B、sudden evaporation of entrapped air in the lubricant C、release of refrigerant from the oil/refrigerant mixture D、release of dissolved lubricant from the refrigerant
A、cools the inert gas and prevents soot from entering the cargo tanks B、acts as an emergency shutdown when inlet pressures exceed the safe working pressure C、prevents the backflow of hydrocarbon gasses into nonhazardous areas D、relieves sudden large overpressures in the system
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