A、caustic embrittlement of the boiler metal
B、acidic corrosion of the boiler metal
C、hard scale deposits on the boiler tubes
D、etching of the heat exchange surfaces
更多“Excessive alkalinity of the water in an auxiliary boiler can cause （）.”相关的问题
A、concentrations of calcium sulfate in the boiler water B、fuel oil in the feed water C、improper treatment of the feed water with calcium sulfate D、excessive feed water alkalinity
A、firing for extended periods in the low fire mode B、overheating, due to waterside deposits C、varying the water level above the crown sheet D、carrying excessive alkalinity in the boiler water
A、The detergency；the alkalinity B、The alkalinity；the detergency C、The inhabitant；the water D、The additives；the distilled water
A、Excessive pitching B、Excessive yawing C、Excessive rolling D、No change should be evident
A、A.excessive ring action B、B.excessive ring temperature C、C.improper ring rotation D、D.excessive ring face wear
A、A.Excessive valve train lubrication B、B.Leaking standby oil cooler core C、C.Excessive lube oil pressure D、D.Excessive lube oil in the system
A、ballast control alarms B、excessive draft C、excessive list or trim D、a continual worsening of list or trim
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