1.

The correct chronological order, in development of steam generators, is:

A. Fire-tube boiler, Monotube boiler, and Water tube boiler
B. Water-tube boiler, fire tube boiler, and Monotube boiler
C. Fire-tube boiler, Water tube boiler, and Monotube boiler
D. Water-tube boiler, Monotube boiler, and Fire tube boiler
Answer» D. Water-tube boiler, Monotube boiler, and Fire tube boiler


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