When the pitch angle is greater than 90‚Äö√Ñ√∂‚àö√ñ‚Äö√†√ª, it is called external bevel gear.$

When the pitch angle is greater than 90‚Äö√Ñ√∂‚àö√ñ�

1.	When the pitch angle is greater than 90‚Äö√Ñ√∂‚àö√ñ‚Äö√†√ª, it is called external bevel gear.$
A.	True
B.	Internal
C.	Helical
D.	Herringbone
Answer» C. Helical