Answer ALL questions    PART A – (10×2=20 marks)
1.      Discuss the essential factors which should be considered while selecting a site for a hydroelectric power plant.
2.      List out the inherent advantage of the combined power cycles.
3.      State the advantage and disadvantage of pulverized coal firing.

4.      What is the function of the cooling tower?
5.      What are micro hydel plants? Why are they are important now days.
6.      Explain the function of moderator.
7.      What is the application of diesel electric power plants?
8.      Discuss the effect of inter cooling in a gas turbine plant.
9.      Mention the advantage and disadvantage of the geo thermal power plant.
10.  What are the fixed costs?
PART B – (5x16=80 marks)
  1. (a) (i) Explain a neat diagram of hydroelectric power plant and explain the function of each components in that plant.
     (ii) Distinguish between the high pressure boiler and super critical boiler.
Or
(b)   (i) Describe the water and steam flow circuit of the thermal power plant.
      (ii) With a neat diagram, explain the working principal of the combined MHD and steam open cycle power plant.
  1. (a) (i) Explain the construction and operation of the chain grate travelling stoker. Also eliminate its advantage and disadvantage.
    (ii)State and explain the operation of the mechanical draught cooling towers.
Or
(b)   (i) Sketch and describe the working principal of the pneumatic system of the ash handling in the boiler plant.
(ii)               Explain with a sketch the pulverized coal firing system .what are its merits and demerits.
  1. (a) (i) Explain the working of a typical fast breeder reactor power plant with the help of neat diagram.
(ii) Write short notes on nuclear waste disposal.
Or
(b) (i) Discuss in detail about the factors affect with affect the selection of hydraulic turbine.
(ii) How do you govern the Francis turbine?
(iii)             Describe – muschel cures .
14.  (a) Describe the auxiliary equipments and also discuss the essential components of diesel power plant with neat layout. What is the advantage of the plant?
Or
             (b) (i) In a gas standard bray ton cycle the air enters the compressor at 1 bar and 15C  .                  The pressure leaving the compressor is 5 bar, the maximum temperature in the cycle 900C.
                  (ii) What are the methods to improve the efficiency of the gas turbine power plants?
(iii)              What are the advantages of repowering cycle?
15.     (a) Describe, with the help of neat sketch the working principal of a solar thermal receiver system plant and enumerate the advantages and disadvantages of concentrating collectors over flat plate collectors.
(Or)

(b) What do you understand by power plant economics? Explain the fixed costs and operating costs of a power station.