Consider the following statements:
1. In arc welding, 65% to 75% heat is generated at the anode.
2. Duty cycle in case of arc welding is the cycle of complete welding of work piece from the beginning.
3. Arc blow is more common with DC welding.
Which of the statements given above are correct?
(a) 1, 2 and 3 (b) 1 and 2
(c) 2 and 3 (d) 1 and 3