The thermal efficiency of a steel slab reheating furnace (walking beam type) may be about __________ percent. (A) 15 (B) 40 (C) 70 (D) 85

The thermal efficiency of a steel slab reheating furnace (walking beam
type) may be about __________ percent.
(A) 15
(B) 40
(C) 70
(D) 85
by

1 Answer

Answer :

(B) 40
by

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