WORMS AND KEYS - Quiz

1) What is the use of splines on a shaft?

To slide along longitudinally Change the direction of rotation As idler Spline hub fixed stationary

2) Which method is suitable for worm wheel machining?

Shaping Hobbing Grinding Turning

3) Which surface of a worm gear is termed as throat?

Cylindrical Flat Concave Convex

4) What is 'Normal pitch' in worm wheel?

Axial pitch x sine of helix angle Axial pitch x cosine of helix angle Axial pitch x tan of helix angle Axial pitch x cosec of helix angle

5) What is the formula to calculate outside diameter of worm wheel?

Throat radius - module Throat radius + module Throat diameter + module Throat diameter -module