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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.
Find out the impact-force: A mass of 3 kg ball freely falls from a height of 2 metres on an anvil, & rise 0.5 metre after the blow. If the duration of impact is (1/50) th of
Open coiled helical spring: In an open coiled helical spring along with α = 38 o , if the inclination of the coil is ignored, determine the percentage by which the axial exten
Calculate tension in limbs: Q : A horizontal drum of belt drive carries the belt over semicircle around it. It is rotated counter clockwise to transmit a torque of 300N-m. If
The density of a sample of oak is 0.90 g/cm^3. Calculate a. the density of completely dry oak b. the percent water in the original sample
explain with suitable eg. static and dynamic force analysis
ESSENTIAL S OF A GOOD BOILER: - Should be capable of producing the required Steam at the required pressure for minimum fuel required. - Should be capable of stan
Problem: Newton's First Law Newton's First Law of Motion says that, in the absence of external forces, an object at rest stays at rest and an object in motion continues at cons
Ask okokopkpk#Minimum 100 words accepted#
what is gauge pressure?
define the first and second law of thermodynamics.
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