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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.
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.
Determine elongation because of self weight of conical bar: Sol.: Consider conical bar ABC of length L with the diameter d fixed rigidly at AB . Let attention be focuse
Expected quarterly sales in Year 1 (vehicles) The work content of a single unit of each product in each process has been estimated at: Using MS-Excel, calculate the workloads
what is classification of materials
Q. Corrosion resistance of tantalum? Tantalum is readily attacked by strong alkalis, even at room temperature, and therefore, is not suitable for use in processes where the pH
Wrought Aluminium Alloys Extrusion ingots and sheets are cast through semi-continuous direct chill method. The sheet ingots are scalped in which about 12 millimeter of ingot s
The extent of a hazardous area depends on the rate of release, ventilation conditions, and fluid properties and is defined by the relevant regional or country standards. The pot
Connecte d Rod: It is attached to piston at its small end by means of gudgeon pin. The big end bearing is connected to crank pin. It is made up of forged steel.
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Prove that the ratio of belt tension is given by the T 1 / T 2 = e μθ Let T1 = Tension in belt on the tight side T2 = Tension in belt on the slack side θ = Angle
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