For helical gears, the angle between hob s spindle axis and workpiece – McqOptions

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1.	For helical gears, the angle between hob s spindle axis and workpiece s spindle axis must be _____ as the helix angle of the helical gear.
A.	increased by the same amount
B.	increased by the half amount
C.	decreased by the same amount
D.	decreased by the half amount
Answer» B. increased by the half amount

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