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Define ‘mechanical property' of an engineering material. State any six mechanical properties, give their definitions and one example of the material possessing the properties.
What is the complex index of refraction?
the annual cost of operating a heat pump at year-end prices is r with units of yr. the costs are expected to inflate at
cylinder containing ch4 c2h6 and n2 has to be prepared in which the ratio of the moles of ch4 to c2h6 is 1.3 to 1.
For a control volume enclosing the nozzle only, determine the heat transfer, in kJ, and the change in specific entropy, in kJ/K, each per kg of carbon monoxide flowing through the nozzle. What additional information would be required to evaluate ..
Why does a car engine stop when we turn the key even when the vehicle is running? The engine should run on alternator in case of a petrol engine and on it's own in case of a diesel engine. Then how does it stop exactly?
The tank air pressure above the water level is 300kPa(absolute) while the atmospheric pressure is 100kPA. Neglecting frictional effects, determine the initial discharge rate of water from the tank.(Density of water=1000kg/m^3)
Consider a vertical, single-pane window of equivalent width and height (W = L = 1m). The interior surface is exposed to the air and walls of a room, which are each at 18°C.
A vessel with a frictionless piston contains 1 ft^3 of a gas at 200 psia. The piston is held in position by applying an external force. Calculate the amount of work done if:
the turbine of a large power plant receives 1.00 x 108 btuh of heat from the boiler at 900degf and rejects 5.50 x 106
a spring 75 nm has an equilibrium length of 1.00 m. the spring is compressed to a length of 0.50m and a mass of 2.1kg
1 kg of a gas in a piston-cylinder assembly undergoes a Carnot power cycle for which the isothermal expansion occurs at 800 K. The change in specific entropy of the gas during the isothermal compression, which occurs at 400 K is -25 kJ/kg. K.
water is contained in a pistoncylinder at 200 kpa 200degc and a volume of 20 l. the piston moves slowly compressing
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