reservoir

Situation
Three reservoirs A, B, and C are connected respectively with pipes 1, 2, and 3 joining at a common junction P. Reservoir A is at elevation 80 m, reservoir B at elevation 70 m and reservoir C is at elevation 60 m. The properties of each pipe are as follows:

The flow from reservoir A to junction P is 0.045 m³/s and f for all pipes is 0.018.
 

1. Find the elevation of the energy grade line at P in m.
   A.   75.512
   B.   73.805
   C.   72.021
   D.   74.173
2. Determine the flow on pipe 2 in m³/s.
   A.   0.025
   B.   0.031
   C.   0.029
   D.   0.036
3. Compute the diameter appropriate for pipe 3 in mm.
   A.   175
   B.   170
   C.   178
   D.   172

Problem 12
In Figure 4-04, a 50 mm pipeline leads downhill from a reservoir and discharges into air. If the loss of head between A and B is 44.2 m, compute the discharge.
 

Problem 25
A reservoir 10 ft. deep is in the form of a frustum of inverted square pyramid with bases of 100 and 90 ft. on a side respectively. How long will it require an inlet pipe to fill the reservoir if the water pours in at the rate of 200 gal. per min.? (One gal. = 231 cu. in.)