chain sprocket system is designed to drive a shaft. Assume the following conditions: i. Use SAE 1018 steel for the key (which is the weakest material in comparison to other components) ii. The chain sprocket has a bore diameter of 2.5" and the hub length of 3.125" ill. The sprocket delivers 110 horsepower to a shaft with the rotation of 1700 rpm. iv. Safety factor of 3 Determine 1). The dimensions of the square key: Width: Minimum length (so the key will not fail): 2). The minimum contact length on the hub (so the hub will not fail);

The temperature of air decreases as it is compressed by an adiabatic compressor. a)- true b)- false

Apump is used to circulate hot water in a home heating system. water enters the well-insulated pump operating at steady state at a rate of 0.42 gal/min. the inlet pressure and temperature are 14.7 lbf/in.2, and 180°f, respectively; at the exit the pressure is 60 lbf/in.2 the pump requires 1/15 hp of power input. water can be modeled as an incompressible substance with constant density of 60.58 lb/ft3 and constant specific heat of 1 btu/lb or. neglecting kinetic and potential energy effects, determine the temperature change, in °r, as the water flows through the pump.

The higher the astm grain size number, the finer the gran is. a)-true b)-false