Size of boiler tubes is specified by___________________?
(A) mean diameter and thickness
(B) inside diameter and thickness
(C) outside diameter and thickness
(D) outside diameter and inside diameter
(E) outside diameter alone
Size of boiler tubes is specified by___________________?
(A) mean diameter and thickness
(B) inside diameter and thickness
(C) outside diameter and thickness
(D) outside diameter and inside diameter
(E) outside diameter alone
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