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         A straight inclined pipeline 300 m long discharges freely at a point 50 m lower than the water surface at intake. The pipe intake projects into the reservoir(ke = 0.8). The first 200 m of the pipe is 350 mm diameter and the remaining 100 m is of 250 mm diameter (kc = 0.21).

(i)      find the rate of discharge assuming f=0.06. If the junction point C of the two sizes of the pipe is 40 m below intake water surface level, find pressure head .

(ii)     just upstream of C

(iii)    just downstream of C. Assume sudden contraction at C

(iv)    Verify the head loss across contraction C

                           

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