[Solved] Conicity resulting after machining by Ultrasonic Machining can be reduced by?

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Q.	Conicity resulting after machining by Ultrasonic Machining can be reduced by?
A.	direct injection of slurry
B.	tools having negative taper
C.	high static pressure
D.	all of the mentioned
Answer» D. all of the mentioned
Explanation: conicity can be reduced by above means and also by using wear resistant tools, finer abrasive particles etc.

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