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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.
Firecracker Welding This is a semi automatic version of SMAW. A specially designed heavy - coated electrode, which can be of any length upto 2 m, is laid on the seam of a groo
Explain about the pedestals as construction engineering. Introduction of pedestals enables the construction engineers to make up levels to supply larger bearing areas to the fo
Determine about the extent of excavation The extent of excavation depends upon the construction problems like dewatering and uplift. In extreme cases anchoring of the box may b
What is drilling machine The machine used for drilling is called drilling machine. The drilling operation can also be accomplished in lathe, in which the drill is held in ta
Ask question explin opiz code #Minimum 100 words accepted#
Define the process of STEP community The STEP community is in the process of defining and standardizing a number of domain-specific (mechanical or electrical) Application Proto
Explain construction and working of calomel electrode
Find the weight percent of austenite present in the steel: A 0.4% C hypoeutectoid plain carbon steel is slowly cooled from 1540 o C to (i) slightly above 723 o C and (ii) s
Q. What is Extrusion defects? • Surface cracking - When the surface of an extrusion splits. This is often caused by the extrusion temperature, friction, or speed being too high
(a) A four cylinder engine operates at 1200 rpm gave 18.6 KW brake power, the average torque when one cylinder was cut-off was 105 N-m. Evaluate the indicated thermal efficiency if
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