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Match List I (Processes) with List II (Tolerances obtained) and select the correct answer:

                                List I                       List II

A.  Plasma Arc machining                  1.  7.5 microns

B.  Laser Beam machining                 2.  25 microns

C.  Abrasive Jet machining                3.  50 microns

D.  Ultrasonic machining                    4.  125 microns   

 

        A     B     C     D  

(a)    4     1      3     2

(b)    3     2      4     1

(c)    4     2      3     1

(d)    3     1      4     2

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