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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.
Dead Centre The position of the working piston and the moving parts which are mechanically connected to it, at the moment when the direction of the piston motion is reserved
a) Describe the role of value engineering in new product design and manufacturing. b) Elaborate the basic concept of Just-in-Time in context of optimization of inventory costs.
(a) Describe that Energy is a point function and a property of the system. (b) What is the essence of 1 st law of thermodynamics ? Write down expression for the first law appli
We have a reciprocating compressor operating at 800 rpm. Suction pressure and discharge pressure are held constant by other systems that have nothing to do with the compressor. W
why pre sintering needed in powder metallurgy
A Boot Strap Cooling system of 10 TR capacity is used in an aeroplane. The ambient air pressure and temperature are 0.85 and 20 0 C bar respectively. The pressure of air increases
In Grey Cast Iron, carbon is present in ------------form while in white cast iron, it is found in ----------- form.
a body of mass 5kg moves with an acceleration of 20m/s calculate the force
Present and talk about the bearing, a typical mechanical element for friction decreasing. Complete Table Q2 about benefits,disadvantages and examples of applications of the follow
Flow work: Flow work is energy possessed by the fluid by virtue of its pressure. Displacement Work: When piston moves in cylinder from position 1 to 2 with vo
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