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Q. Describe the term ‘Critical Insulation thickness'. What is its significance? Derive an expression for the critical insulation radius of a spherical system.
A bar of square cross-section connects two metallic structures. One structure is maintained at a temperature of 200o C and the other at 50o C. The bar is 20mm x 20mm in cross section and 100mm long and has a thermal conductivity of 60W/mK. The ambient air is at 20o C and heat transfer coefficient between the bar and the ambient is 10W/m2K. Derive an expression for the temperature distribution along the bar & calculate the steady state heat flow rate from the bar to the surrounding.
Q. What is coated electrode? These types of electrodes are prepared by coating of flux on metal wire. Due to arc metal electrode melts and used as filler metal. Flux melts and
Caisson foundations Caisson foundations are similar to wells, but are much large in size. They are of different types, closed end, open ended and of pneumatic type. Figure show
slidder crank chain / reciprocating engine mechanism pics
Follow board pattern This type of pattern is adopted for those castings where there are some portions which are structurally weak and if not supported properly are likely to br
Prove that the force exerted by a jet of water on a semicircular plate in the direction of the jet when the jet strikes at the centre of the semicircular plate is two times the for
Grinder: Grinders are used to sharpen the cutting edges of the tools. They are basically fast rotating grinding wheels carried at one or two ends of a shaft. The grinding wheel ar
Automated Material Handling We have dealt along with the automated guided vehicles and Robots utilized in the industry. Because of the industrial automation, various changes h
A cycle stream power plant is to be designed for stream temperature and turbine 350
What is relative humidity
In a Rankine cycle, the steam at inlet to turbine is saturated at a pressure of 35 bar and the exhaust pressure is 0.2 bar. Evaluate: (i) The pump work, (ii) The turb
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