[Solved] In cutting of rocks using water jet machining, which type of pressure is needed?

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Q.	In cutting of rocks using water jet machining, which type of pressure is needed?
A.	low pressure
B.	medium pressure
C.	high pressure
D.	none of the mentioned
Answer» C. high pressure
Explanation: in wjm, very high pressures and velocities are needed while cutting rocks.

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