For the Examination of B. E. (Common Course to all Branches), B. Tech., B. Sc. (Engg.), Sec. A & B of AMIE (I), AMIEE (London), IERE, (London), Grade IETE, Diploma and other Competitive Examinations. Establishment of Technological Universities have taken place in recent past. This resulted into a pool of expert manpower within a large area. Unification of syllabi has taken place and the question papers set during the last 4-5 years have a wider variety and are of more inquisitive nature. Solutions to these with brief logical reasonings have been added for the benefit of our student community.