4.34 A water flow rate of 4 L/min enters the lawn sprinkler shown ss in the figure in a vertical direction. The velocity of the jets leaving the nozzles is 17 m/s relative to the sprinkler arm and inclined 30° above the horizontal. Friction in the bearing causes a torque of 0:18 N-m opposing rotation. Determine (a) the torque required to hold the sprinkler stationary, (b) the rotational speed if the torque is removed, and (c) the rotational speed if there is no torque due to the bearings. Vrel 30° R = 200 mm

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.

Which of the following ziegler nichols tuning methods the response of the controller to a step input should exhibit an s-shaped curve? a)-open loop mode b)-closed loop mode c)-both modes (open & closed) d)-none of the modes (open & closed)

Derive the correction factor formula for conical nozzle i=-(1+ cosa) and calculate the nozzle angle correction factor for a nozzle whose divergence hal-fangle is 13 (hint: assume that all the mass flow originates at the apex of the cone.