If T is the actual number of teeth on a helical gear and φ is the he – McqOptions

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1.	If T is the actual number of teeth on a helical gear and φ is the helix angle for the teeth, the formative number of teeth is written as
A.	T sec3 φ
B.	T sec2 φ
C.	T/sec3φ
D.	T cosec φ
Answer» B. T sec2 φ

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