A safety clutch with shear pins in Figure 1 transmits a torque of T = 500 N-m. The clutch has tve identical pins on the circle of diameter of Dm = 100 mm. Pins are made of medium carbon steel and normalized, with an allowable stress of [7] = 400 MPa. It is required the safety clutch function at 50% of overload. Decide the diameter of the pins. 18 marks] D. Figure 1 Safety Clutch.

Water at the rate of 1 kg/s is forced through a tube with a 2.5 cm inner diameter. the inlet water temperature is 15°c, and the outlet water temperature is 50°c. the tube wall temperature is 14°c higher than the local water temperature all along the length of the tube. what is the length of the tube?

Inadequate stores control is not an obstacle to effective work order system. (clo4) a)-true b)-false

Asteam is contained in a rigid tank with a volume of 1 m3. initially, the pressure and temperature are 7 bar and 500 oc, respectively. the temperature drops due to cooling process. determine: (1) the temperature at which condensation begins in °c, (2) the fraction of the total mass that has condensed when the pressure decreased to 0.5 bar. (3) the volume in m3 occupied by saturated liquid at the final state?