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A steel tube of 30 mm external diameter and 20mm internal diameter encloses a copper rod of 15mm diameter to which it is rigidly joined at each end. If at a temperature of 10o C, there is no longitudinal stress, evaluate the stresses in the rod and the tube when the temperature is raised to 200o C. Take E for steel and copper are 2.1 x 105 N/mm2 and 1x 105 N/mm2 respectively. The value of coefficient of linear expansion for steel and copper is given as 11 x 10-6 per degree C and 18 x 10-6 per degree C respectively.
(a) Describe heat engine. How is this engine characterized? (b) Describe Perpetual motion machines of first kind and second kind, i.e. PMM1 and PMM2. Are such machines possible
determine the vertical deflection at end A neglecting shear
An axial flow pump handling oil of specific gravity 0.8 at a rate of 1.0m3 s-1 is fitted with downstream guide vanes and its impeller rotates at 250 rev min-1. The oil approaches t
(a) Illustrate cetane and octane rating of the fuels (b) Compare two adn four stroke cycle engines.
Find out the maximum deflection in beam: A beam of span 8m is loaded with UDL of 10 kN/m over the middle half portion. Discover the maximum deflection. EI is constant. Sol
In general, it seems easy: polishing scored cylinders and pistons, replacing worn seals, existing excessively worn or damaged parts, etc. Though, for an ordinary person, the proble
Road under Special Conditions: Roads passing through difficult terrain and environmental conditions require special attention in design, construction and maintenance. The foll
Q. Flanged pressure vessel nozzles? The Designer is responsible for ensuring that the facings, bolt circle, number of bolts, and size of bolts of vessel nozzles, match the mati
Ask question EMC#Minimum 100 words accepted#
Thrust: The net force exerted by a liquid on any shield in contact with it, is called as thrust of liquid. Pressure: The thrust operated by a liquid per unit area of the fie
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