As owner occupancy occurs, what documents should the contractor provide to the owner?
What will be an ideal response?
As owner occupancy occurs, the contractor should provide the documents that will ensure that the owner will be able to maintain and operate the equipment. The owner should be provided with all documentation and/or training for schedule concerns on maintenance items, such as air filters, that will need to be addressed and executed by their maintenance people. As an alternate, the contractor can arrange for an outside vendor who will provide continuous service and filter changing into the future for the owner. As we move into a new climate in the building industry, contractors will also need to think about a longer maintenance and warranty period to ensure that these high-performance buildings continue to operate as specified.
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Una herramienta neumática típica requiere alrededor de _____ de presión de aire.
a. 50 psi (344,74 kPa) b. 70 psi (482,63 kPa) c. 90 psi (620,53 kPa) d. 125 psi (861,84 kPa)
How is the centrifugal blower turned?
What will be an ideal response?
Air at 52°C, 101.3 kPa, and 20 percent relative humidity enters a 5-cm-diameter tube with an average velocity of 6 m/s. The tube inner surface is wetted uniformly with water, whose vapor pressure at 52°C is 13.6 kPa. While the temperature and pressure of air remain constant, the partial pressure of vapor in the outlet air is increased to 10 kPa. Detemine (a) the average mass transfer coefficient in m/s, (b) the log-mean driving force for mass transfer in molar concentration units, (c) the water evaporation rate in kg/h, and (d) the length of the tube.
What will be an ideal response?
The Holtz motor operates at _____ RPM.
A. 1200 B. 1725 C. 1800 D. 3600