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(a) Describe heat engine. How is this engine characterized?
(b) Describe Perpetual motion machines of first kind and second kind, i.e. PMM1 and PMM2. Are such machines possible to build? If no then why?
(c) A reversible engine receives heat from a high temperature reservoir at T1K and rejects heat to a low temperature sink at 560 oC. A second reversible engine receives heat rejected by the first engine at 560 oC and rejects heat to cold reservoir at 4.4 oC. Determine the temperature T1 for the engines , if they deliver same work.
(a) Illustrate the First Law of Thermodynamics for a closed system undergoing a cycle. (b) A piston and cylinder machine contains a fluid system which passes through a complete
A converging elbow (see Figure 4) turns water through an angle of 135 o in a vertical plane. The flow cross-section diameter is 400 mm at the elbow inlet, section (1), and 200 mm
Bhasker operates a retail shop and sells the high priced "Hot Food" thermoware. Each unit I priced at Rs.250. Experience has shown that the weekly demand schedule for items is as f
Hardfacing Electrodes There are many types of hard facing electrodes. These electrodes are mainly useful in the maintenance and repair of machinery parts and equipments subject
what is cone friction?
Q. Flanged pressure vessel nozzles? The Designer is responsible for ensuring that the facings, bolt circle, number of bolts, and size of bolts of vessel nozzles, match the mati
what are the essentials of a good steam generator?
CLASSIFIC A TIO N: (1 ) In accordance to Cylinder Axis: Engine can be vertical or horizontal. (2 ) In accordance to action of steam: Can be single acting or doub
Explain the concept of time dilation. Describe experimental verification of time dilation. Explain: (i) Length contraction (ii) Time Dilation in STR What are proper length an
Importance of stresses in shaft: What is importance of stresses in shaft ? Sol.: In shaft the following significant stresses occur. 1. A maximum shear stress occurs on
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