A spur gear of 40 teeth is machined in a gear hobbing machine using a – McqOptions

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1.	A spur gear of 40 teeth is machined in a gear hobbing machine using a double start hob cutter. The speed ratio between the hob and the blank is
A.	1:20
B.	1:40
C.	40:1
D.	20:1
Answer» E.

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