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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.
Determine the maximum stress developed in the beam: An I section in Figure is utilized as a beam. The beam is subjected to a bending moment of 2.5 kN m at its neutral axis. De
Sketch stress-strain diagram for Mild Steel in tension and also describe the important points. Also draw stress-strain curve for cast Iron, concrete and for elastic rubber only.
EQUIPMENT FOR RESISTANCE WELDING-Single phase vs three phase The resistance welding machines can be connected either across 440 V mains (across two lines) or three phase mains.
Q. Briefly explain Model scale design? Knowledge of dynamic similarity conditions enables evaluation of model scales. Almost alI the problems related to river hydraulics are ab
Main Factors to be Considered when Selecting Material The main factors to be considered when selecting a material to meet some specific requirement are: Fitness of use,
Fifth Service and Sixth Service Following extra mandatory checks are required during the fifth service of a 125 cc motorcycle : Inspect engine oil and top up as re
Forces working on dam: Let a dam retaining water as illustrated in Figure (a). What are the forces working on it? Solution The forces working on dam are as follows:
Compute the force exerted by the tires on the road: An automobile of mass 1500 kg traverses a 500 m curve at a constant speed of 50 kmph. Supposing no banking of the curve,
what are the practical applications and use of finding uniform distributed load, concentrated point load, inclined point load, roller supported beam.
what is Direct and Reverse crank method of balancing
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