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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.
Alignment of a Railway Line: Selection of Alignment The following points must be considered in selecting the alignment of a railway line : (a) It should be as direct
(a) Briefly explain the following performance parameters of I.C. engine : (i) Indicated men effective pressure (Pim) (ii) Brake power (BP) (iii) Indicated power (IP) (
Supply Chain Management: In this unit, you have learned that the supply chain is the network of autonomous and semi-autonomous business entities, which are include through ups
Forces working on dam: Let a dam retaining water as illustrated in Figure (a). What are the forces working on it? Solution The forces working on dam are as follows:
Define the Application of Abrasive Jet Cutting Machines Cleaning purpose. Cutting fine lines. Machining semiconductors. Drilling and cutting thin section of har
Kennedy’s Theorem: According to this theorem the relative instantaneous centres on whichever three bodies that contain motion relative to each other are collinear. Higher Pa
How is a micrometer used?
what absorber
Natural Polymers Rubber is individual natural polymer and was illustrated earlier. Specific trees exude thick liquid that solidified in brittle material termed as rosin. Shell
Motion of the boat: (i) A man having weighs 500 N and is in a boat weighing 1500 N which is free to move over a steady lake. If he begins running along the length of the boat
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