MACHINE DESIGN

1. In case of spur gears the flank of the tooth is:

• The part of the tooth surface lying below the pitch surface

• The curve forming face and flank

• The width of the gear tooth measure axially along the pitch surface

• The surface of the top of the tooth.

2. In case of cross helical worm the axes of two

shafts are:

• Parallel

• Intersect

• Non-parallel

• Non-parallel-non-intersecting

3. In case of gears the addendum is given by:

• One module

• 2.157 x module

• 1.57 x module

• 1.25/module

4. 4. Gears for watches are generally manufactured by:

• Die casting

• Machining on hobber

• Machining on a gear shaper

• Stamping

In case of helical gears the axial plane is given

by:

• Diametral pitch over sine of helix angle

• Diametral pitch over cosine of helix angle

• Diametral pitch over cotangent of helix angle

• Diametral pitch over tangent of helix angle