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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.
Calculated the diameter of an aluninium shaft: Calculated the diameter of an aluninium shaft that is designed to store the similar amount of strain energy per unit volume as a
(a) Why do we change the engine oil at periodic intervals? (b) What are the recommended instructions to change engine oil? (c) How will you measure the engine oil level?
what is part proliferation and how to reduce it ?
Those that produce microbial cells e.g.Baker's yeast or mycoprotein. Those that produce microbial enzymes e.g. alpha amylase for starch processing, glucose isomerase for the pro
Q. A steel bar 10 cm broad and 8 mm thick is subjected to bending moment. The radius of the neutral surface is 100 cm. Found out the maximum and minimum bending stress in beam.
Track Renewal: Need for Track Renewal Normal maintenance is able to keep up the track standards only to a limited extent. The track gets overaged or the speeds and tr
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
cases of equilibrium with explaination
sketch and discuss the uses and application of the following types of cam follower;knife edge,roller and flat ended.
Q. Explain Double Bolting? Where low strength bolts must be used, initial bolting with higher strength low temperature bolts may be necessary to minimize accumulative strain an
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