A、a needle gun
B、soap and water
C、a wire brush
D、a chipping hammer
更多“The steam coils in a high pressure evaporator used for saltwater service should be de-scaled with （）.”相关的问题
A、amount of superheat in the vapor leaving the coil B、amount of superheat in the liquid C、temperature in the evaporator coils D、pressure in the evaporator coils
A、pull the tagged end from the top of the coil B、pull the tagged end through the eye of the coil C、secure the outside end unroll the coil D、unreel the coil from a spool
A、in the middle of evaporator coils B、near the evaporator coil outlet C、near the evaporator coil inlet D、on the bottom row of evaporator coils
A、precipitate silica from solution B、reduce corrosion in the heating coil C、prevent clogging and erosion in the coil D、maintain zero water hardness
A、A.pull the tagged end from the top of the coil B、B.pull the tagged end through the eye of the coil C、C.secure the outside end and unroll the coil D、D.unreel the coil from a spool
A、should be coiled in a clockwise direction B、should be coiled in a counterclockwise direction C、may be coiled either clockwise or counterclockwise D、should never be coiled
A、should be coiled in a clockwise direction B、should be coiled in a counterclockwise direction C、may be coiled either clockwise or counterclockwise D、should never be coiled
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