B.M.E. (Basic Mechanical Engineering)

Chapter: 5                                                                                                             Heat Engine        Classify and explain the thermodynamic system with giving two suitable engineering examples of each. (03) (Summer 2018)        Define heat engine. Explain the essential requirements of heat engine with suitable figure. (04) (Summer 2018)      Draw air standard diesel cycle on p-V and T-s diagrams. Derive equation for air standard efficiency of Diesel cycle. (07) (Summer 2017,2016)         With usual notations derive expression for air standard efficiency of Otto cycle. (03) (Winter 2017)            Calculate the air standard efficiency of the engine working on Otto cycle in which air initially at 1 bar and 20°C is compressed adiabatically to the pressure of 16 bar. Maximum pressure of cycle is 45 bar and adiabatic index    γ =1.4. (04) (Summer 2016)       An engine operating on the ideal diesel cycle has a maximum pressure of 45 bar and a

  Chapter:8                                                                                                                                  Pumps With neat sketch explain construction and working of gear pump and screw pump. (04) (Summer 2018) (Winter 2017) What is priming? Why it is required in centrifugal pump but not in reciprocating pump. (03) (Summer 2017) With neat sketch explain in brief the working of Vane pump. (03) (Summer 2016) Differentiate between reciprocating pump and centrifugal pump.(04) (Winter 2017) Chapter: 9                                                                                                                       Air Compressors       What are the applications of air compressor? Derive an expression of work done for single stage single acting reciprocating air compressor without clearance. (07) (Summer 2018)     In air compressor, air enters at 1.013 bar and 270C having volume of 5 m3/ kg and it is compressed to 12 bar iso