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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.
Thermal Conductivity The amount of heat passing throughout unit cross-section of a solid material in unit time for unit thermal gradient is termed as thermal conductivity. The
Determines the effect of price reduction: In order to enhance the sales, management of Quality ice-cream company decided to give discounts in the sale of one and half liter pa
how will u designate a v belt
A vertical petrol engine 100mm diameter and 120mm stroke has a connecting rod 250mm long. The mass of the piston is 1.1kg. The speed is 2000 r.p.m. On the expansion stroke with a
a concrete column of 350mm diameter is reinforced with 4 bars of 25mm diameter . find the stress when the concrete is subjected to a stress of 4.5 MPa . also find the safe load in
Calculate the force - pulley: A string is passing over a smooth pulley. The string supports the mass m on one side which is to be pulled up with acceleration a. calculate the
Determine the fatigue strength of medium carbon steel: For determining the fatigue strength of medium carbon steel 15 specimens, identical in all respect were tested in cantil
(a) Describe the volumetric efficiency for an I. C. Engine. What is the basic effect of volumetric efficiency on: (i) Specific fuel consumption, (ii) engine power. (b) A p
GMAW POWER SOURCE A power source wit h a flat characteristics is almost universally used for GMAW process as it provides self adjustment and stabilisation of the arc. Also it m
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