Name of the Subject: UTILIGATION of ELECTRICAL ENERGY (UEE)

EXAMINATION BRANCH QUESTION BANK Name of the branch: EEE Year & Sem:IV&I

Name of the subject: UTILIGATION OF ELECTRICAL ENERGY (UEE)

Name of the faculty, Designation & Mobile number: P.Sampath Kumar Asst.prof &9441743211

Date of Examination: Academic Year: 2017-18

NOTE: All the faculty requested to use Question Style - Calibri and Size - 12

UNIT-I

APPEARED IN MARKS S.N0 QUESTION (R05,R07, Assigned R09, R13)

1 State different types of drives and give three advantages and disadvantages of any one R09 05 Describe the selection of various types of motors for the following services 2 i)Rolling mills ii)cranes and lifts iii)Textile machinery iv) Printing machine and v) Household applications R05 05 Compare the characteristics of DC series and shunt motor 3 R09 05 4 What is an electric drive? What are its advantages? Compare a group drive and An individual drive. RO7 05 R09 5 Explain what is mean by individual drive and Group drive discuss their Relative merits and demerits? 5 Through a.c is superior to d.c for electric drives, sometimes d .c. is 6 preferred. Give the reasons and mention some of the applications R13 5 Discuss how different parameters of speed -Time curve will vary with the 7 type Of train service. R13 5 8 Explain what is mean by Load Equalization and how it is accomplished? R09 5 9 Discuss the various factors governing the choice of motors R13 5 Explain the various factors that affect the final temperature rise of a motor 10 On load? R09 5 11 Discuss the running characteristics of any two electric motors R13 5 12 Discuss the selection criterion of a motor for a drive application. R09 5 13 Explain the various methods of speed control of AC motors. R13 5 Compare the slip ring and squirrel cage induction motors from the 14 application 5 15 Derive the equations of heat time curve and cool time curve? R09 5

UNIT-II

APPEARED IN (R05,R07, MARKS S.N0 QUESTION R09, R13) Assigned a) Discuss the various modes of heat dissipation 1 b) Briefly explain the different methods of electric heating? R13

What is electric 5 heating? What are 2 the advantages over other methods of Heating? R09 5 Explain the theory of dielectric heating and state its applications. what are 5 the advantages of dielectric heating? R09

Explain the principal of operation of induction 3 heating and state and 4 explain different type‘s induction heating methods? R09

5 Describe briefly the R09 5 methods of direct and indirect resistance heating and list The applications of these two methods?

What are the various 6 types of induction furnace? R13

How will you control most efficiently the 7 heat of resistance furnace? R13

What advantages does graphite 8 electrode process over carbon electrode? R09

Explain in brief how heating is done in the following cases? 9 i) Resistance heating, ii)Induction heating iii) R13 Dielectric heating.

Explain the difference between carbon and 10 metallic arc weldings. Give their relative merits and demerits. R09

Explain the different methods of electric 11 welding and their relative advantages? R09 5

What is the fundamental difference between the 12 electric arc welding and the resistance welding? R07 5

a) Describe the various types of electric Arc welding process? 13 (b)Why AC is more suitable for the resistance welding? R05 5 5 a)Describe the various methods of current flow control in welding transfo me 14 s b) Describe butt welding and its various applications. R09

15 What are the types of R09 5 electrodes used for welding operation? Give the advantages of coated electrodes.