The head-discharge relationship for a certain pump can be represented by the equation H = 28-9Q2. The pump is fixed 2.5 m above the water surface in a river and it forces the water to a level 7.8 m above the pump. The suction and delivery pipes are 16 m and 764 m long, respectively and each pipe is 0.8 m in diameter. The pipe coefficient of friction is 0.005. The friction coefficient (Km) for the pump is 1.5. Estimate the time required to lift 1500 tons of water from the river by using this pump.

The time required to lift 1500 tons was estimated.

Explanation:

Given data,

Head discharge H = 28-9

= 2.5 m

= 7.8 m

The suction pipe = 16 m

The delivery pipe = 764 m

Diameter d = 0.8 m

coefficient of friction f = 0.005

coefficient of friction (km) pump = 1.5

H = 28-9

The total head H = + + h + h

h =

h =

H = + + +

H = 2.5 + 7.8 + +

H = 10.3+0.051 + 2.43

H = 10.3 + 2.48

28-9 = 10.3 + 2.48

V = = = 2Q

x+2 because it just doubles hon so the pattern can actually tell you the expression.

so for example,

if x=2 then 2+2 is 4

if x=4 then 4+4 is 8

and so on and so forth.

i really hope that this makes sense and you out in a way hon: )

no he didnt use it

explanation:

he said no