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What are the components that can influence the Factor of safety selection? Explain few of them
½ kg of a liquid-vapor water mixture in a rigid tank initially at 2 bar is heated by 120V heater for 5 minutes until it becomes a saturated vapor at 4 bar. Changes in kinetic and potential energies can be ignored.
Define and give the dimensions of thermal conductivity k, thermal diffusivity a,heat capacity C, heat flux q, and combined energy flux e. For the dimensions use m = mass, I = length, T = temperature, and t = time.
a heat pump uses r-134a as the working fluid and operates on an ideal vapor-compression cycle. the condenser pressure
A fireman is using a 10-cm inside-diameter fire hose is trying extinguish a fire. He is aiming the hose at 45° with respect to the horizontal and the water lands 30 m from the fire fighter. On the end of the fire hose is a nozzle. The inside diamete..
compute the design factor of a rod that is under a tensile load of 3125 lb. the rod is rectangular 1.5 in by 3.5 in and
a uniform chain of total mass m and total length l lies in a heap on a table. one end is pulled upwards at constant
in an orthogonal cutting operation the chip velocity was determined using a laser doppler velocimeter ldv as 80 of the
A water reservoir contains 100 tons of water at an average elevation of 60 m. The maximum amount of electric power that can be generated from this water is
a 0.5-m3 vessel contains 10 kg of refrigerant-134a at -20oc. determine a the pressure b the total internal energy and c
car a is traveling at va130kmh as it passes a police officer in car p but over the next 5 seconds the car uniformly
Convert the composition of the following alloy from atom percent to weight percent (a) 44.8 at% of silver, (b) 46.3 at% of gold, and (c) 8.9 at% of Cu. Assume that the atomic weights for silver, gold and copper are, respectively, 107.87, 196.97 an..
As shown in the picture, air flows through a pipe. Heat is supplied to the airflow. The air at the inlet is 200kPa and 20 C with flow velocity of 5m/s. The exiting air is 180 kPa and 40 °C. The diameter of the pipe is 0.28 m. Determine (a) the volume..
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