#1
18th March 2016, 06:17 PM
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IES Exam Pepar
Will you please give here sample question paper for IES Mechanical Engineering examination of UPSC ?
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#2
18th March 2016, 06:17 PM
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Re: IES Exam Pepar
Hey , to get sample question paper for IES Mechanical Engineering examination of UPSC. IES Mechanical Engineering Exam Paper : 3. (a) A 3-jet pelton turbine is required to generatE 10,000 kW under a. net head of 400 m. ThE blade angle at outlet is 15c and the reduction ir the relative velocity while passing over thE b~ades is 5%. If the overall efficiency of thE wheel is 80%, c\' = 0•98 and speed ratio = 0•46, find (i) the diameter of the jet, (ii) the flow ratE and (iii) the force exerted by a jet on the buckets. (b) (i) The lubricating oil used in a gear box of a compressor is being recirculated through a double pipe heat exchanger for cooling. The oil is to be cooled from 70°C to 40°C using water ayailable at 28°C. Flow rate of the oil is 1000 kg/hr. Water exit temperature should not exceed 42°C. Cp of oil is 2•05 kJ/kg-K, Cp of water is 4•17 kJ/kg-K. Calculate the required water flow rate and the area of the heat exchanger. Assume counter flow. Also assume the overall heat transfer coefficient to be 300 W/m2K. (ii) A refrigerator is placed near a partition wall of a room such that there is only a 4 em gap between the wall and the refrigerator surface facing the wall. The refrigerator surface is of 1•6 m height and 0•8 m breadth and has a temperature of 22°C. The wall temperature is 30°C. Calculate the rate of heat gain by the refrigerator surface. 7 (a) (i) Show the -various psychrometrie procEsses on a skeleton psychrometric chert. |
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