UESTION ONE
1 a)(i)Explain the essential factors that influence the choice of site for a hydro-electric plant. (4 marks)
(ii)Explain the functions of the following; dam, spillways, surge tank, headworks and penstock (5 marks)

b) A hydro-electric power station has reservoir area of 2.4 km2 and capacity 5 x 106 M3.The effective head of water is 100M.The penstock, turbine and generator efficiencies are respectively 95%,90% and 85%.Find;
(i) The total electrical energy that can be generated from the power station.
(ii)If a load of 15,000 kw has been supplied for 3hrs, find the fall in reservoir level. (5 marks)

QUESTION TWO
2 a) Explain the meaning of the following terms as applied to power generation;
(i)Load Curve.
(ii) Maximum Demand.
(iii) Load Factor.
(iv) Diversity Factor. (4 marks)
b) An equipment in a power station costs Ksh.1,560,000 and has a salvage value of Ksh.60,000 at the end of 25 years .Determine the depreciated value of the equipment after 20 yrs using the following methods;
(i) Straight line method
(ii) Diminishing value method
(iii) Sinking fund method at 5% compound interest annually. (6 marks).
c) Explain two advantages of having a high load factor. (4 marks)

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