7. In case of helical gears the angle between the plane containing the axes of the gear and plane passing through the pitch point is known as
A. Axial pitch angle
B. Helix angle
C. Lead angle
D. Pitch angle
7. In case of helical gears the angle between the plane containing the axes of the gear and plane passing through the pitch point is known as
A. Axial pitch angle
B. Helix angle
C. Lead angle
D. Pitch angle