For the same diameter and thickness of tube, a water tube boiler compared to a fire tube boiler has:

Heating surface depends on other parameters

For the same diameter and thickness of tube, a water tube boiler compa

1.	For the same diameter and thickness of tube, a water tube boiler compared to a fire tube boiler has:
A.	More heating surface
B.	Less heating surface
C.	Equal heating surface
D.	Heating surface depends on other parameters
Answer» B. Less heating surface