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a) State FOUR factors that affect the effectiveness of hydrodynamic lubrication as a means of reducing friction between components.
b) Under what conditions would boundary lubrication be used rather than hydrodynamic lubrication and what would cause this to happen?
c) Briefly describe THREE uses of lubricants other than for lubrication.
Q2 A 3kW electric water heater is a cylindrical element having outside diameter 10mm. The heat transfer between the heater and the surrounding water is 980W/m2K. Determine the leng
microscopic and macroscopic approch
Leakage flux : The flux that links the coil only partially passes through the core does not link the coil as the moving or rotating device is called leakage flux.
A combined cycle plant is designed to develop 200MW power. The air is obtained by the compressor at 300K and 1 bar pressure. The maximum temperature of the gas turbine cycle is lim
how to calculate flow rate of liquid nitrogen? melting point(-210deg) boiling point(-195.8deg) critical temp(-149.9deg) relative density(0.8) specific gravity(808.5kg/m^3) rel
Consider fully developed laminar flow with constant properties in a circular tube. Let there be heat transfered to or from the fluid at a constant rate per unit of tube length.Ad
3-d stress&strains
Two position synthesis of crank rocker mechanisms
two forces are acting at a point''o'',determine magnitude and direction by using parallelogram law of forces and triangular law of forces
A load cell based on a "proving ring" is shown below. The circular portion of the load cell has an inner radius of 1.25 in and outer radius of 1.50 in. The ring has a depth (i.e.
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