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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.
helical gear
Space Time Structure If the position of the particle P changes, the differential change in its position vector r is, in general, given by, d r = d x i + d y j + d z k
Stress-strain carves for ductile materials: A material is said to be ductile in nature, if it elongates before fracture. One this type of material is mild steel. Shape of stre
Estimate temperature of air at exit from compressor: The air compressor compresses atmospheric air at 0.1MPa and 27 0 C 10 times the inlet pressure. During compression heat
Blasting Nozzle: Figure: Shown blast nozzle sample Jet injection type of nozzle is a very powerful blasting method. Nozzle design is very particular to the
RESISTANCE WELDING PROCESSES The following five are the main types of resistance welding: 1. Spot welding 2. Seam welding 3. Projection welding 4. Upset butt we
Find the minimum weight to keep equilibrium: A belt supports the two weights W 1 an d W 2 over a pulley as shown in the figure given below. If W 1 = 1000N, fi
Question Suppose T 1 and T 2 are independent and identically distributed Exponential variables with common hazard λ. What is the density of T = T 1 + T 2 ? What is the E(T-1
In case of welded vessels why is stress relieving in the form of post-weld treatment necessary? When a metal is welded together the point at which two surfaces are joined are s
Control of the guide vanes shall be by means of an external linkage connected to the internal control ring Steam Generator piping. Inlet guide vanes shall be furnished with the
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