A 160V d. c shunt generator delivers a load current of 70 A .The armature resistance is 0.7 ohms and field circuit resistance is 70 ohms . The generator rotating at a speed of 2100 rpm has 8 poles lap wound and has a total of 350
conductors .
A)find no load voltage in the armature ?
B) the flux per pole ?

An air conditioning system consist of a 5 cm diameter pipe, operating at a pressure of 200 kpa. the air initially enters the pipe at 15°c with a velocity of 20 m/s and relative humidity of 80%. if the heat supply throughout the process is 960 w, determine the relative humidity and the temperature at the outlet

Water in a partially filled large tank is to be supplied to the roof top, which is 8 m above the water level in the tank, through a 2.2-cm-internal-diameter pipe by maintaining a constant air pressure of 300 kpa (gage) in the tank. if the head loss in the piping is 2 m of water, determine the discharge rate of the supply of water to the roof top in liters per second.

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