8. If you have a 16'x 24' restroom with a ceiling height of 9' and an exhaust requirement of 12 air changes per hour. What is the minimum exhaust airflow? A. 580 CFM В. 385 CFM с. 60 CFМ D. 695 CFM 9. Which mode of heat transfer drives the envelope load on a building? A. Radiant B. Convective C. Conductive 10. What is the resultant mixed air temperature if a system is drawing in 1300 CFM of retun air at 77.8°F and 700 CFM of outdoor air at 104.1°F? A 81°F db B. 83°F db C. 85°F db D. 87°F db 11. Under what conditions would you expect to see an airfoil type of Fire-Smoke Damper? A High Airflow B. High Temperature C. High Air Velocity D. High Humidity degrees Celsius 12.89 degrees Fahrenheit is equivalent to A. 100 В. 77 С. 83 D. 32 13. A four-pipe Hydronic Fan Coil provides: A. Heating only B. Cooling only C. Ventilation D. Heating and Cooling 14. Which is the best insulating material? A. Fiberglass B. Mineral Wool C. Polystyrene D. Still Air

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A: Countersinks -  Countersinks are conical holes cut in a manufacturing object or the tool that is…

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A: The setup time can be reduced by - Eliminating waste Using power clamp Design for manufacturability…

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A: Given Trolley To find Utilitarian approach for trolley problem

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A: b) No

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A: The acronym PASS, which stands for Pull, Aim, Squeeze, and Sweep.

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A: Yes, the velocity change across a stator.

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Work and Heat Transfer

It is generally related to thermal engineering which tells about the use, creation, conversion and transfer of heat energy between the systems. It is also considered that to transfer heat from one source to another, transfer of masses is also required. There are various mechanisms by which, transfer of heat takes place i.e. thermal conduction, convection, radiation or by change of phase. All these mechanisms have their own specific features which sometimes occur simultaneously within the same system.