Number of pairs of teeth in contact is given by [where, ϕ = pressure – McqOptions

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1.	Number of pairs of teeth in contact is given by [where, ϕ = pressure angle]:
A.	(Arc of contact)/(Circular pitch)
B.	(Path of contact)/(Circular pitch)
C.	(Arc of contact)/(cos ϕ × Circular pitch)
D.	(Arch of contact × cos ϕ)/(Circular pitch)
Answer» B. (Path of contact)/(Circular pitch)

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