B.TECH -7th SEM (Main) ....EXAMINATION , DECEMBER-2010....**ELECTRICAL ENGINEERING**

                                              ELECTRICAL ENGINEERING


                                 "UTILIZATION OF ELECTRICAL POWER"




Q1.    A)  Explain the advantage of Electric Heating?................................(4)
          B)  What are the factors which decide the voltage and frequency of the dielectric heating ? Derive an 
                expression for the heat produced in a dielectric material?................................(4+4)
          C)  Differentiate between carbon arc and metal arc welding?......................(4)




                                                               OR




Q1.     A) Describe with the help of a neat sketch ,the working of a vertical core type induction furnace. Give 
                the application of high frequency eddy current heating?..............................(6+2)
           B) Compare in details, the electric arc welding with resistance welding . Explain with help of a neat 
                 sketch the process of a spot welding?..............................................(4+4)