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BOMI - Air Handling, Water Treatment & Plumbing Systems Questions And Answers Graded A+ $8.39
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BOMI - Air Handling, Water Treatment & Plumbing Systems Questions And Answers Graded A+
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1 - Absolute pressure is equal to standard sea-level plus: - Gauge pressure 1 - All of the following are types of scale except: - Silicone Types of scale include: - Silicate - magnesium carbonate - Calcium Carbonate 1 - Complaints in the winter that it is too cold in a building can be offset ...

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  • 13 juillet 2024
  • 52
  • 2023/2024
  • Examen
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BOMI -Air Handling, Water Treatment & Plumbing Systems . 1 - Absolute pressure is equal to standard sea -level plus: - Gauge pressure 1 - All of the following are types of scale except: - Silicone Types of scale include: - Silicate - magnesium carbonate - Calcium Carbonate 1 - Complaints in the winter that it is too cold in a building can be offset by: - Raising the humidity and the temperature 1 - Copper tubing is standardized on the basis of use into standard - Wall thickness schedules 1 - Define absolute pressure - The total pressure that is exerted on a gas or liquid from all sources, including the atmospheric pressure. Expressed in psia Absolute pressure (psia) is equal to the sum of the atmospheric pressure and gauge pressure. 1 - For a centrifugal fan, which type of fan blade affords a wider range of efficiencies and lower noise levels? - Airfoil 1 - IAQ is best controlled by diluting polluted indoor air with less contaminated fresh air in a process called: - Ventilation 1 - Name three advantages of the hydro -pneumatic tank system for water distribution - Can be installed in any convenient location in the water distribution system. May act as a cushion to prevent water hammer. Energy conservation is possible. 1 - One method used to detect smoke is - Ionization 1 - Problems caused by the accumulation of dissolved minerals, suspended solids, and rust partials aka sludge are called: - Fouling 1 - The rate of exchange of fresh air for returned air in an air conditioning -system is based on the period of time covered and the number of building: - Occupants 1 - What are four basic groups of refrigerants? - CFCs - Chlorofluorocarbons HCFCs - Hydrochlorofluorocarbons HFCs - Hydrofluorocarbons Ammonia 1 - What are the three basic ingredients that must be present to permit combustion - Fuel Oxygen Heat 1 - What are the three main elements of good IAQ - Acceptable temperature and RH Controlled airborne contaminants Adequate distribution of ventilation air 1 - What are the various types of scale? - Magnesium carbonates Silicates Calcium carbonates 1 - What can be done in the winter to offset complaints of being too cold? - Raising the humidity and the temperature 1 - What is a mixing box? - The mixing box is the section of the air handling unit The mixing box is a section of the air - handling unit where return building air mixes with fresh outside air 1 - What is the proper way to collect water samples for testing? - Containers must be cleaned and rinsed out with water from the line being tested. Let the line run for 30 seconds to prevent testing stagnant water, and run the test as soon as possible after the test has been taken. 1 - What is the relationship between thermal comfort and metabolic heat? - Thermal comfort exists when the temperature and relative humidity of a persons environment permit the person to lose, without conscious effort, metabolic heat at the same rate he or she produces it. 1 - What material is a mixture of iron and iron silicate? - Wrought iron is a mixture of iron and iron silicate. 1 - When a substance condenses, it __Blank__ its surroundings - Releases heat to its surroundings 1 - Which is the best description of back pressure? - Increase in pressure in the downstream piping system 1 - Which is the simplest, but least accurate pH test? - pH paper 1 - Why does water have the ability to absorb large amounts of heat? - The strong internal forces that must be overcome to break water molecules apart is the reason why water absorbs so many Btu of heat before changing from one state to another. 10 - A draft exists when room air movement aka velocity is at or above how many fpm? - 50 fpm 10 - A liquid with a pH of more than seven is considered to be: - Basic 10 - All of the following are examples of air contaminants except: - Oxygen Examples of air contaminants: - Partials - Mold - Formaldehyde 10 - All of the following are requirements for correctly making up a flange joint except: - Backup materials the following are requirements for correctly making up a flange joint:

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