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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.
Requiremen t of Temperature Scale: The temperature scale on which temperature of the system can be read is required to assign the numerical values to the thermal state of the
It should include 10 pages along with pictures and references.
Explain the Open system - Thermodynamic The system that can exchange both of the mass and energy that is Heat and work with its surrounding, the mass in the system may not be c
Q: What is simple bending or pure bending of beam? Sol.: If portion of beam is subjected to the constant bending moment only and
Collapsible Soils and Subsidence There are soils which are quite stable when dry and they show large volume changes on wetting under load. Examples of these soils are loess (w
(a) Explain four common characteristics of work and Heat? (b) Evaluate for a Vander Waals' gas which has the equation of (p +a/v 2 ) (2-b) = RT the work done at constant t
priming and foaming
Stability of a governed
design considerations
Masonry Arch Culverts: Brick or stone masonry arches were very popular forms for culverts till recently. The disadvantage with this form is the unavoidable humps in the longi
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