Question

(vii) A pumped storage hydroelectric scheme comprises two reservoirs. The water surface of the lower reservoir is 100 m above sea level and it has a maximum depth of 10 m while the water surface of the upper lake is 350 m above sea level and it has a maximum depth of 25 m? Which of the following is true is relation to the absolute pressure at the deepest points in the reservoirs? (a) It will be larger in the upper reservoir (b) It will be larger in lower reservoir (c) It will be the same in both reservoirs

(viii) An ideal fluid is flowing through a pipe of constant diameter which runs uphill? Which of the following statements is incorrect? (a) The velocity head of the flow will remain constant. (b) The potential head of the flow will remain constant. (c) The pressure head of the flow will decrease.

Answer 1