Q 62. In an arc welding process, the voltage and current are 25 V and 300 A respectively. The arc heat transfer efficiency is 0.85 and welding speed is 8 mm/sec. The net heat input (in J/mm) is:
(A) 64
(B) 797
(C) 1103
(D) 79700
Answer: (B)
Explanation:
