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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.
Compare otto cycle with Diesel cycle: Sol.: These two cycles can be compared on the basis of either the same compression ratio or the same maximum pressure and temperature.
Aircraft Characteristics For planning and designing airport facilities, it is necessary to be conversant with the following important characteristics: (a) speed (b) size
explain about universal drilling machine
A 54 kg chandelier is suspended 1.5 m below a ceiling by 3 wires, each of which has the similar tension and the similar length of 2.0 m (see the drawing). Find the tension in every
A hinged object hangs on the outside of a rotating wheel. When the object is in the six o''clock position, it needs to be rotated 180 degrees using only the rotational power of the
Find out the horizontal and vertical components of the force: A force of 120 N is exerted on a hook in the ceiling as illustrated in Figure. Find out the horizontal and vertic
Cylinder Head De-carburising and Valve Lapping: Cylinder head mounts on the top of the engine cylinder, the inner side of the cylinder head is always in direct contact of combusti
fully automatic pnuematic cicuit explanation#Minimum 100 words accepted#
Q. What is belt? How many types of belt are used for the transmission of power? Sol: The power or rotary motion from one shaft to the other at a considerable distance is
Evolution of Specific volume of wet saturated steam -thermodynamics : Specific volume of wet saturated steam (V we t ) It is volume occupied by unit mass of wet satu
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