The maximum internal diameter of a blast furnace is about
Options
A. 3 m
B. 6 m
C. 9 m
D. 12 m
Correct Answer
9 m
More questions
1. The relation between the tool life (T) in minutes and cutting speed (V) in m/min is (where n = An exponent, which depends upon the tool and workpiece, and C = A constant)