August T24/M07072/EE/20150821 2015 Basic Thermodynamics Instructions: MARKS-80 Time: 3 Hrs 1. All questions are compulsory. 2. “Long Answer type Question (LAQ)” is a supply type question of 15 marks which required a typical answer of about 60-80 lines in bout 32-40 minutes. 3. “Sort Answer type Question (SAQ)” is a supply type question of 5 marks which required a typical answer of about 15-20 lines in bout 08-10 minutes. 4. Figures to the right indicate marks allotted to the questions. 5. Assume suitable data if necessary 6. Use a nonprogrammable type of scientific calculator is allowed Marks SECTION-A Q.1 Explain the reversible work with suitable diagram and example 15 OR Q.1 Explain reversible constant volume process with suitable help of PV diagram? 15 Q.2 Explain poly-tropic reversible process in closed system? 15 OR Q.2 Explain the joule's law and relation between specific heats? 15 Q.3 Calculate the dryness fraction of steam which has 1.5 kg of water in suspension with 50 kg of steam? 5 Q.4 Write the Relation between two specific heat? 5 SECTION-B Q.5 Explain the perpetual motion machine of second kinds? 15 OR Q.5 Explain the Carnot theorem with suitable diagram? 15 Q.6 Explain the different parameter Thermal efficiency Mechanical efficiency and Overall efficiency? 15 OR Q.6 Derive the expression for Rankine cycle? 15 Q.7 Explain the entropy changes for closed system? 5 Q.8 Write a function of following terms a) Boiler b) turbine c) condenser d) Feed pump and application of Rankine cycle 5 Computer Generated Random Question Paper dated: 17-07-2015 17:08:36 ***BEST OF LUCK***