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1. Choose a common building object made from a type of polymer; explain what type of polymer is used and why it is the most suitable. What are the mechanical and chemical requirements of the polymer for the particular building object? Remember to include any fabrication methods the polymer may have to go through along with any precautions in its use e.g. avoiding putting it in a situation where its mechanical and chemical properties are not suitable. (About ? of a page)
2. Give the differences between hot and cold working during the rolling process including the final mechanical properties and advantages and disadvantages of both processes. Draw (on the figure provided) the grain structure of the metal after it has passed through the rollers for both hot and cold worked met
the pump of a water distribution system is powered by a 6-kw electric motor whose efficiency is 95. the water flow rate
a brayton cycle inlet is at 300 k 100 kpa and the combustion adds 670 kjkg. the maximum temperature is 1200 k due to
Many ventilation systems maintain a slightly higher pressure in a building than the outside pressure. If the pressure in your room is 0.1 psi than the outside pressure will you be able to open the door? How much is this force compared to your weight?..
carousle conveyors are used for storage and order picking for small parts.the conveyors rotate clockwise or counter
It is required that a pump be designed for use in a chemical plant such that it delivers 0.8 m^3/s of benzene with a pressure increase of 320 kPa. What is the expected flow and pressure increase produced by a model one-sixth the size of the prototype..
a baloon rises with a constant velocity.a load is tied by a rope to the basket. when the baloon is at altitude h0 the
A mixture of air and water at a temperature of 30ºC and a pressure of 750 mmHg has a relative humidity of 75%. The wet gas is compressed to 40 psia and cooled to 20ºC. How many cubic meters of original gas were compressed if 0.75 lb of condensate (wa..
design an experiment complete with instrumentation to determine the specific heats of a liquid using a resistance
plot the final bend radius as a function of initial bend radius in bending for a 5052-o aluminum b5052-h34 aluminum c
a flow is described by velocity field vaibxj where a 2 ms and b 1 1s coordinates are measured in meters. a obtain
consider a heat engine executed using a flow rate of 0.03 kgs of refrigerant-134. the engine operates between two
two 20mm steel plates are welded to a rolled S section as shown. Determine the moments of inertia and the radii of gyration of the combined section with respect to the centroidal x and y axes.
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