## What is the minimum number of friction surfaces required for the clutch to function properly?

1.A disk clutch is being proposed for an industrial application in which the power-input shaft supplies 12 kw steadily at 650 rpm. The patented friction lining material, which is to be bonded to one or more annular disk surfaces, is to be brought into contact with stiff steel disks to actuate the clutch. The outside diameter of the clutch disks must be no larger than 125 mm, and it is desired to configure the annular friction surfaces so that the inner diameter is about 2/3 of the outer diameter. The coefficient of friction between the patented friction lining material and steel is and the maximum-allowable contact pressure is . What is the minimum number of friction surfaces required for the clutch to function properly?

### 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….