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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. Show the Geometric Similarity? When model is required to provide an aid merely for visualisation, scaler reproduction of form is sufficient which is termed Geometric Similar
Use s of Carnot Cycle: 1. It helping us to appreciate what factors is desirable in the design of practical cycle; namely a maximum possible temperature range. 1 maximum p
Functions of the Piston To transmit force of explosion to the crankshaft. To form a seal so that high pressure gases from the combustion chamber do not escape into th
The corrosion resistance of the austenitic stainless steels (within the concentration and temperature conditions described above) relies on the formation and stability of a passive
Advantage of Electro Chemical Machining 1. As the tool does not come in contact with the work there for tool wear is practically nil. 2. The metal removal is faster rate.
Deformation Processes In these processes, the material is plastically deformed (hot or cold) under the action of an external force, to produce the required shape. No material i
Helium Helium (He) is an inert, very light monoatomic gas, of atomic weight of 4. It is obtained by separation from natural gas. Helium is refined to a purity of min. 99.99
hazard and safety measures when using utm machine
What are the Elements of Theory of Vibrations All bodies possessing mass and elasticity can vibrate or undergo vibratory motion. Let us understand a few basic definitions used
In conveyor belts calculations, if it is required of me to calculate "The Power transmitted by the drive,at the specific efficiency" Which power are they reffering to?
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