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The shaft, as given in Figure is driven by pulley B from an electric motor. Another belt drive from pulley A is operating a compressor. The belt tensions for pulley A are 1500 N and 600 N. The ratio of belt tensions for pulley B is 3.5. The diameter d of pulley A is 150 mm and the diameter d of pulley B is 480 mm. The maximum allowable tensile stress for the shaft material is 170 MPa and the allowable shear stress is 85 MPa. Taking bending and torsion factors as 1.25 and 1.75 respectively, Evaluate the shaft diameter. Also search out the dimensions for a hollow shaft with outside diameter limited to 30 mm. Compare the weights of the two shafts.
An internal wheel B with 80 teeth is keyed to shaft F. A fixed internal wheel with 82 teeth is concentric with B. A compound wheel DE gear with two internal wheels, D has 28 teeth
What is a difference between the steady state conditions and the thermal equilibrium state? In steady state condition, temperatures are constant although heat transfer is taking
(a) Draw P-H and T-S diagrams for following cases : (3) (i) Cycle with superheated vapour before compression. (ii) Cycle with sub-cooling or under-cooling of refrigerant.
Q. Check ferrite content of austenitic stainless steel weld? Check the ferrite content of each austenitic stainless steel weld, including overlay welds, in the as-welded condit
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Determine modulus of resilience: A steel specimen of 10 mm diameter & 50 mm gauge length was tested in tension and following observations were recorded. Load at upper yield
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Screw conveyor Screw conveyor during mixing and flow directing paddles are selectively adjustable for use on a wide variety of materials having dissimilar flow characteristics
What is the difference between blowholes & porosity in casting ?
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