(A) quarrying of stones ()
(B) testing of stones (X)
(C) dressing of stones (X)
(D) none of the above (X)
Answers: Jumper is a tool used for quarrying of stones.
(A) quarrying of stones ()
(B) testing of stones (X)
(C) dressing of stones (X)
(D) none of the above (X)
Answers: Jumper is a tool used for quarrying of stones.
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