## 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.

### 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….

### Find the gain and phase characteristics of the maintaining amplifier.

A solid-state capacitive humidity sensor has a capacitance given by: C = 1.7 RH + 365pF where RH is the percentage relative humidity. The sensor has an associated parallel resistance….

### calculate the mean velocity of the gas at maximum flow rate

A pitot tube is used to measure the mean velocity of high pressure gas in a 0.15 m diameter pipe. At maximum flow rate the mean pitot differential pressure is….