SRM University 2007 B.Tech Electronics and Communications Engineering BANK - Question Paper

189. What is the minimum requirements for selecting cable.
190. describe earthing
191. How does soil resistivity influence earthing
192. elaborate the general requirement of earthing.
193. How earthing is established in case of domestic filtings and appliances.
194. elaborate the basic consideration that an electric installation should take into account
195. How will you protect against shock circuit
196. How will your protect against Earth Faust.
197. Name the basic protective device.
198. What is the rated current of a fuse wire.
199.What are different kinds of basic fuses.
200. What is objective of earthing.
201. elaborate the general requirements of electrical installation
202. Name the different systems of wiring.
203. List down the points to be considered in selecting the kind of wiring.
204. describe cleat wiring.
205. What is a wood casing wiring
206. explain about Batten wiring
207. What do you mean by TRS wire.
208. What is a metal sheathed wiring.
209. describe conduct wiring.
210. What is a rewirable fuse?
211. describe cartridge fuses.
212. What is service connection?
213. elaborate 2 kinds of service connection.
214. What is the advantage of providing sub—distribution boards for large building.
215. Where should be the control switches be located.
216. Why a main switch board should never be installed in kitchen and toilets.


PART – B

UNIT – I:

1. State the working principle of a DC generator and discuss the construction of a single loop generator.
2. Derive the EMF formula of a DC generator.
3. Explain the construction of a DC generator.
4. How will you classify generators? discuss in detail with necessary circuit diagram.
5. Draw the power stages diagram of DC generator and derive different efficiency expression mechanically, electrically & overall.
6. Discuss on Applications of different DC generators.
7. Explain the Internal & External characteristics of a DC generator.
8. Define voltage regulation of the generator. Derive an expression for up and down voltage regulation.
9. Define voltage build of a shunt generator and derive an condition for build up of a shunt generator based on the different factors affecting the identical.

Earning:   Approval pending.