A nozzle at 4 discharges water with an titial velocity of 36 f/s at an angle a with tdhe horizontal. Determine (a) the distance d to the farthest point B on the roof that the water can reach. (6) the corresponding angle a Check that the stream will clear the edge of the roof.

Amixture of slurry and mud is to be pumped through a horizontal pipe of diameter 500 mm. the fluid behaves as a bingham plastic with a yield stress of 30 pa and viscosity 0.04 pa.s. describe the effects of the shear stress through a transverse section of the pipe by plotting the variation in shear stress and velocity profile: (i) just before the slurry starts to move (ii) as the slurry flows when the pressure gradient is double that in part (i)