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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.
What is tracing error? Define how to track tracing error?
Q. Describe about Austenitic stainless steels? Austenitic stainless steels (300 series) generally exhibit very good corrosion resistance in sulphuric acid service for low conce
Short Circuiting Transfer The short circuiting transfer occurs when the welding current and the arc voltage is low. Metal is transferred from the electrode to the work only wh
(a) Illustrate the concept of absolute thermodynamic temperature scale on the basis of second law. (b) In a Steady flow apparatus , 13.5 KJ of work is done by each kg of fluid.
Determine the maximum shear stress and angle of twist: A hollow circular shaft of 6 m length and inner & outer diameter ois equal to 80 mm and 100 mm is subjected to a torq
Requiremen t of Temperature Scale: The temperature scale on which temperature of the system can be read is required to assign the numerical values to the thermal state of the
What are the points that should be kept in mind during forging design? Some of the points which must be followed while forging design are: > A radial flow of fibers or grain
Explain the Construction of dc machine The constructional features of a dc machine are given below. A dc machine has two major parts, magnetic ?eld system and armature. The ?eld
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Heat Treatment and Surface Treatment Processes Heat treatment processes are employed to improve of a work piece. The category includes the processes. Annealing, Normalizing,
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