Question:-
In manual arc welding, the equipment should have drooping characteristics in order to maintain the
Option (A)
voltage constant when arc length changes
Option (B)
current constant when arc length changes
Option(C)
temperature in the arc constant
Option(D)
weld pool red-hot
Correct Option:
(B)
Question Solution:
For drooping characteristics we find that change in the arc length shows very little change in the current. So, it is suitable for the manual arc welding because slight change of the arc length due to the movement of hand will not cause large change in welding current, so preferable for the manual arc welding.
question-answer-faq-8441