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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.
The Power Method is a classic numerical algorithm for determining the largest eigenvalue and eigenvector associated with a matrix A. Write a matlab function that returns the larges
a) Describe main advantages and disadvantages of CI engine as compared to SI engine. b) With the help of a neat diagram, describe the working of a four stroke petrol engine.
A converging elbow (see Figure 4) turns water through an angle of 135 o in a vertical plane. The flow cross-section diameter is 400 mm at the elbow inlet, section (1), and 200 mm
DIFINE AS INERTIA
Cracks Cracks are the linear ruptures of the metal under stress. Sometimes they appear large and frequently they are narrow separations. The major classification of cracks
TYPE OF DEFECTS AND THEIR SIGNIFICANCE Defects in weldments in general can be classified as follows: I. Defects involving inadequate bonding Lack of fusion Incom
Calculate the value of ∫ Π/2 sinx dx by Simpson's 1/3 rule using 11 ordinates. Determine the root of equation xe x = cosx using secant method correct to four decimal places.
Discover the increase in pressure: A copper tube of 50 mm diameter and 1200 mm length contains a thickness of 1.2 mm along closed ends. This is filled with water at atmospheri
Q. Show the Welding processes The following welding processes are permitted: Shielded Metal-Arc Welding (SMAW) - Do not use SMAW for the root pass of single side groove we
State and define the bending equation and mention it''s units and derive it
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