Because the circulating water is in a closed loop,_______is installed to cater for expansion and contraction of the water at different conditions of operation.A.an expansion jointB.a drain tankC.a head tankD.a contraction tank
Because the circulating water is in a closed loop,_______is installed to cater for expansion and contraction of the water at different conditions of operation.
A.an expansion joint
B.a drain tank
C.a head tank
D.a contraction tank
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