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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.
BASIC PHYSICS
Frames: You have been introduced to the analysis of frames. By going through this unit, you may identify frames and differentiate them from trusses. The method for analyzing f
working
Find out the friction force: The cord passes over a massless and frictionless pulley, carrying a mass M 1 at one end and wrapped around a cylinder of mass M 2 which rolls on
(i) Hydraulic press: This can be used to lift a heavy load placed on the platform of larger piston or to press the things placed among the piston and the heavy platfor
#question.ton of refrigerant .
Creep in belt drive
Martempering: The piece to be hardened is wholly austenitized and after that quenched in a lead of salt bath held at a temperature simply above at that martensite would begin
You need to sketch shear force and bending moment diagrams and estimate maximum bending and shear stresses acting on the beam using your knowledge in beam analysis. Please note
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