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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.
(a) Prove that the fourier series expansion for the function x(t) described in the finite interval -π ≤ t≤ π x(t) = 0 -π ≤ t ≤ 0 x(t) = sint 0 ≤ t ≤ π (b) Represent t
Draw the bending moment diagram and shear force diagram: A cantilever beam of 8 m length is subjected to point loads of 15 kN, 10 kN, 25 kN and 20 kN at distances of 4 m, 2 m,
Q. Qualifications of Welding Procedures? The Fabricator shall prepare and submit for review by Welding Procedure Specifications (WPS) and Procedure Qualification Records (PQR),
Question: The disk 3 shown in the figure rotates at a constant angular velocity w 3 = 2.0 rad/s. A slider in a slot in the disk causes rod 2 to rotate. When the slider
what is the application of the rank order clustering
A multiple disc clutch, steel on bronze, is to transmit 4.5 kW at 750 r.p.m. The inner radius of contact is 40mm and outer radius of the contact is 70 mm. The clutch operates in oi
(a) Describe the terms "Refrigeration" and "Air-conditioning". Determine the units of Refrigeration ? (b) The capacity of refrigeration is 400 TR when working between -6 o C and
what is the main process to get steel hard
A simple band brake performs on a drum of 600mm in diameter that is running at 200 r.p.m. The coefficient of friction is 0.25. The brake band has a contact at 270 o one end is fas
What is the amount of air is supplied to engine via turbochargers and how their sizes vary from engine to engine ?
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