Find the pitch diameter, addendum, dedendum, outside diameter, normal, transverse, and axial pitch.

1.       A 20°-pressure-angle, 30°-helix-angle, 27-tooth helical gear has a diametral pitch pd = 5. Find the pitch diameter, addendum, dedendum, outside diameter, normal, transverse, and axial pitch.

2.       A 25°-pressure-angle, 20°-helix-angle, 43-tooth helical gear has a diametral pitch pd = 8. Find the pitch diameter, addendum, dedendum, outside diameter, normal, transverse, and axial pitch.

3.       A 57-tooth, 10°-helix-angle, helical gear is in mesh with a 23-tooth pinion. The pd = 6 and φ = 25°. Find the transverse and axial contact ratios.

4.       A 78-tooth, 30°-helix-angle, helical gear is in mesh with a 27-tooth pinion. The pd = 6 and φ = 20°. Find the transverse and axial contact ratios.

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Calculate the maximum achievable bridge out-of-balance voltage for an applied torque T of 103 N m given the following

Four strain gauges, with specification given below, are available to measure the torque on a cylindrical shaft 4 cm in diameter connecting a motor and load. (a) Draw clearly labelled….

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calculate the mean velocity of the gas at maximum flow rate

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