At what rpm should a lathe be run to give a cutting speed of 25 m/min. When turning a rod of diameter 32 mm.
A) Parting off
B) 160 rpm
C) 100 rpm
D) 200 rpm
E) 250 rpm
Correct Answer:
Verified
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A)Changing the
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A)Producing large holes
B)Under
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A)To prevent vibrations
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