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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.
This section shall apply to the general requirements for design, fabrication, erection, and testing of structural steels for supports, stairways, ladders and platforms. All stru
Determine a real root of the equation xlog10 x = 1.2 by regula-falsi method correct to four decimal places.
Airlines like to overbook their flights (this is a vibrant area of research called yield management). It is estimated that 10% of the people who book their flight do not show up. H
Types in trusses
Mash stitch welding An overlap of about 1.15 mm is kept and then the plates are squeezed flash by application of pressure at hot condition. Mash stitch welding is used in the
Terminal Nut: This is a detachable type of terminal nut. The high tension (HT) cord is connected here. This is also available in non-detachable type. Figure: Spark Plug
Describe the modes of failure in bearing capacity. Modes of Failure: Behaviour of foundations subjected to load based on actual observations suggests that the bearing capaci
4. Design a run-of-the river hydropower scheme for a river in the Scottish Borders with potential level different of 15 m carrying water from a catchment area of 14 km by 25 km. I
Q. What do you mean by Shell and Tube Exchangers? Shell and tube exchanger piping shall be arranged to provide clearance overhead at both bonnet and channel ends. Piping shall
A 16-bit A/D board is arranged to accept voltage signals ranging from -5V to +5V. The A/D board is used to monitor the output from the Wheatstone bridge shown below. The strain g
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