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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.
Screw Driver: Screwdrivers of different sizes are used to tighten or loosen screws. These are made of vanadium steels. A typical screw driver is shown in Figure. Fig
Q. Explain Rate Pressure Product? The systolic blood pressure is multiplied by the heart rate to provide the double product or modified fusion time index. On presence of an obs
Determine the width and depth of the beam: A timber beam of rectangular section is only supported over a span of 5 m. It carries an uniformly distributed load of 15 kN/m over
corrosion in boilers is prevented or minimized by maintaining of boiler water
Q. Explain about Active Fire Protection? Active Fire Protection - A fire fighting system that is normally dormant and is activated automatically upon detection of a fire hazard
what is meant by tool signature
Q. Air-Gas Cross-Limiting and Air-Gas Ratio Control? The Steam Generator firing demand signal is directed to two discrete signal selectors. A low signal selector ensures that
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Flux Cored Arc Welding Single Pass F illet Welds upto (8.0 mm) maximum and groove welds made with a single pass or a single pass each side, may be made using an E70T-X electrod
Q. Explain the terms centre of gravity and centroid. Sol. : A point can be found out in a body through which resultant of all such parallel forces acts. This point through
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