Pick up the correct statement from the following: Options: A . &nbspAir bubbles in casting produce a dull sound by tapping their surfaces lightly with a hammer B . &nbspCupola furnace is used for the manufacture of cast iron C . &nbspRed short iron is of no value for welding purpose D . &nbspAll the above.

Pick up the correct statement from the following:

Question

Pick up the correct statement from the following:

Options:

A . Air bubbles in casting produce a dull sound by tapping their surfaces lightly with a hammer

B . Cupola furnace is used for the manufacture of cast iron

C . Red short iron is of no value for welding purpose

D . All the above.

Answer: Option D
Answer: (d).All the above.

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