High and New Technology Industrial Development Zone, Zhengzhou, China [email protected]
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objective question on grinder machine in botswana

objective question on grinder machine in botswana

The grade of a grinding wheel is specified by letters from A to Z Which one is the hardest grade A E B J C P D Y Ans D 3 It is required to finish grind a 050 mm mild steel shaft on a cylindrical grinding machine What will be the surface speed if the job is 191 A 20 metersmin B 25 metersmin C 30 metersmin D 35 meters

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