Question

flow
Ex.7
Two reservoirs connected by a pipe of friction
elevation of H. If H and f were to remain
factor f has a difference in water surface
constant, to increase the flow by 100%, one
would need to increase the cross sectional area
of flow by
(b) 100%
(d) 32%
(a) 74%
(C) 50%

Answer 1

Answer:

flow

Ex.7

Two reservoirs connected by a pipe of friction

elevation of H. If H and f were to remain

factor f has a difference in water surface

constant, to increase the flow by 100%, one

would need to increase the cross sectional area

of flow by

(b) 100%

(d) 32%

(a) 74%

(C) 50%

Explanation:

Answer 2

Answer:

74%

Explanation:

Since we know:

Q^2∝D^5

So,

Discharge is increased by 100% that mnz 2 times

Therefore,

{2Q/Q}^2 ={D2/D1}^5

D2/D1 =4^0.2

Area ∝Diameter

A2 = 130 % of A1

So increase in. area

200% - 130%. Approx ..70%

So 74% is most appropriate option..