Note: This Question is unanswered, help us to find answer for this one
23. How does the rate at which a specific device can add substantial heat to a substance get expressed?
Answer
Correct Answer:
BTUh
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24. What is used as the heat source during the heating cycle?
Answer
Correct Answer:
Air outside the home
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25. What type of cycle is used to turn heat into energy?
Answer
Correct Answer:
Heating
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26. What is the main goal of a heat pump?
Answer
Correct Answer:
Cooling
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27. How is heat loss measured?
Answer
Correct Answer:
BTU's
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28. What should be the local outdoor design temperature?
Answer
Correct Answer:
Winter
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29. Heat Gain is measured in what?
Answer
Correct Answer:
BTU's
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30. What is the purpose of an oil cooler?
Answer
Correct Answer:
Transfer of heat energy
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31. What is the name of the device used for the transfer of heat energy from the source to the conveying medium?
Answer
Correct Answer:
Heat Exchanger
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32. Water from an underground well is being used as the heat source or what for a heat pump?
Answer
Correct Answer:
Heat sink
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33. What material is used to cool the freon?
Answer
Correct Answer:
Glycol
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34. What is a typical location for the glycol-cooled condenser?
Answer
Correct Answer:
Inside the air conditioner
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35. What type of air conditioning system uses freon as a refrigerant?
Answer
Correct Answer:
Glycol-Cooled System
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36. What is the purpose of the vessel in an absorption cycle?
Answer
Correct Answer:
The lithium bromide solution is reconcentrated by boiling off the previously absorbed water
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37. What is the name of the vessel used to boil off the water from the lithium bromide solution?
Answer
Correct Answer:
Generator
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38. What type of energy is used to run furnaces?
Answer
Correct Answer:
Gas, oil, electricity or other fuel
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39. What part of an environmental system converts gas, oil, electricity or other fuel into heat for distribution within a structure?
Answer
Correct Answer:
Furnace
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40. What are the components of the group of hydrocarbons known as Freon?
Answer
Correct Answer:
Fluorine, chlorine or bromine
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41. What term is used to identify any of the group of partially or completely halogenated simple hydrocarbons containing fluorine, chlorine or bromine?
Answer
Correct Answer:
Freon
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42. What is the heat source or heat sink for a ground-source heat pump?
Answer
Correct Answer:
The ground or soil below the frost line
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43. What are the units installed in the field without if needed?
Answer
Correct Answer:
Ducts
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44. A water cooled or glycol cooled system with an additional coil that provides chilled water cooling when the what is cold?
Answer
Correct Answer:
Outdoor ambient
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45. What type of filter can be used to protect HVAC equipment?
Answer
Correct Answer:
Filters
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46. Filters vary greatly in what?
Answer
Correct Answer:
Particle arrestance
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47. Which scale temperature measurement is most common in the US?
Answer
Correct Answer:
Fahrenheit
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48. What is the purpose of the evaporator coil?
Answer
Correct Answer:
Take heat and moisture out of indoor air
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49. What does a evaporator do?
Answer
Correct Answer:
Absorbs heat from the surrounding air or liquid
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50. What is another name for the evaporator?
Answer
Correct Answer:
Cooling coil, blower coil, chilling unit or indoor coil
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51. What type of coil absorbs heat from the surrounding air and moves it outside the refrigerated area?
Answer
Correct Answer:
Evaporator
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52. What is the name of the test that EER was based on?
Answer
Correct Answer:
ARI-specified test conditions
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53. The EER is the ratio of the cooling capacity of the air conditioner in what unit, to the total electrical input in watts under ARI-specified test conditions?
Answer
Correct Answer:
British Thermal Units
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54. What kind of contaminants does an electronic air cleaner filter out?
Answer
Correct Answer:
Large particles and contaminants
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55. What is the name of the device that filters out large particles and contaminants?
Answer
Correct Answer:
Electronic Air Cleaner
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56. What are another name for channels or pipes?
Answer
Correct Answer:
Ductwork
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57. What are Ductwork used to carry?
Answer
Correct Answer:
Air
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58. What are channels or ductwork that carry air throughout a building?
Answer
Correct Answer:
Pipes or channels that carry air throughout a building
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59. What type of material is used to construct duct?
Answer
Correct Answer:
Sheet metal, fiberglass board, or other suitable material
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60. What is an air handling unit?
Answer
Correct Answer:
Duct
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61. Which type of furnace does the return air come from the top of?
Answer
Correct Answer:
Downflow Furnace
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62. What does a downflow furnace do at the bottom?
Answer
Correct Answer:
Expels warm air
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63. Downflow air conditioning systems discharge air downward, directly beneath what?
Answer
Correct Answer:
A raised floor
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64. What does a furnace "vent"?
Answer
Correct Answer:
Combustion gases directly outside
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65. What type of air does a furnace pull into the combustion process?
Answer
Correct Answer:
Outside
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66. How many types of cooling media are there?
Answer
Correct Answer:
Two
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67. What is used to cool a direct expansion system?
Answer
Correct Answer:
Freon
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68. What is the other type of basic cooling media?
Answer
Correct Answer:
Chilled water
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69. What does dehumidification reduce the water vapor in air by?
Answer
Correct Answer:
Cooling the air
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70. What is the reduction of water vapor in air by cooling the air below the dew point?
Answer
Correct Answer:
Dehumidification
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71. What does the term freeze cycle mean?
Answer
Correct Answer:
The process of removing ice or frost buildup from the outdoor coil during the heating season
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72. What season is it that the outdoor coil is refrozen?
Answer
Correct Answer:
Heating
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73. What does a damper do?
Answer
Correct Answer:
Opens and closes to control airflow
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74. What is a term for movable plate that controls airflow?
Answer
Correct Answer:
Damper
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75. What are used in zoning to regulate airflow?
Answer
Correct Answer:
Dampers
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76. What is the cooling load?
Answer
Correct Answer:
Heat which flows into a space
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77. What can flow into a space from outdoors and/or indoors?
Answer
Correct Answer:
Heat
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78. What is the name of the process that causes heat to flow into a space?
Answer
Correct Answer:
Cooling Load
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79. What is the measure of how much heat a unit can remove from an enclosed space?
Answer
Correct Answer:
Cooling Capacity
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80. What does COP stand for?
Answer
Correct Answer:
Coefficient of Performance
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81. What type of unit is a condensing unit?
Answer
Correct Answer:
Part of a refrigerating mechanism
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82. What part of a split system air conditioner contains the compressor?
Answer
Correct Answer:
Outdoor
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83. What does the term "condenser coil" refer to?
Answer
Correct Answer:
A series or network of tubes filled with refrigerant
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84. What is the name of the equipment that removes heat from the gas?
Answer
Correct Answer:
Condenser Coil
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85. What material is used to fill the tubes in a Condenser Coil?
Answer
Correct Answer:
Refrigerant
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86. What are the three types of condensers?
Answer
Correct Answer:
Air-cooled condensers, water-cooled condensers, and evaporative condensers
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87. What do condensers use to transfer heat?
Answer
Correct Answer:
Air
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88. What type of condenser uses a combination of air and water?
Answer
Correct Answer:
Evaporative condensers
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89. What does the word "condensation" mean?
Answer
Correct Answer:
The process by which a gas is changed into a liquid at constant temperature by heat removal
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90. What is the process by which a gas is changed into a liquid at constant temperature by heat removal?
Answer
Correct Answer:
Condensation
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91. What is the compressor often called?
Answer
Correct Answer:
The heart of the system
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92. What is the name of the pump that moves the refrigerant from the indoor evaporator to the outdoor condenser and back to the evaporator again?
Answer
Correct Answer:
Compressor
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93. Comfort air systems aren't designed for what?
Answer
Correct Answer:
Protection of computer-based electrical systems
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94. What is the major component of a chilled water system?
Answer
Correct Answer:
Chiller
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95. What is contained in a chiller?
Answer
Correct Answer:
Refrigerant
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96. What is a charge?
Answer
Correct Answer:
Amount of refrigerant in a system
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97. What is another term for "CFM"?
Answer
Correct Answer:
Cubic feet per minute
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98. What is the name of the type of compressor used in vapor compression refrigeration cycles?
Answer
Correct Answer:
Centrifugal Compressor
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99. What type of system is not affected by geography?
Answer
Correct Answer:
Central Air Conditioner System
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100. What does burning any fuel produce?
Answer
Correct Answer:
Carbon Monoxide
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101. What is CO produced by?
Answer
Correct Answer:
Burning any fuel
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102. How does the amount of space a system is able to heat or cool is usually expressed?
Answer
Correct Answer:
BTU's
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103. What is the capacity of a ton?
Answer
Correct Answer:
The ability of a heating or cooling system to heat or cool a given amount of space
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104. What is the units for capacity for cooling?
Answer
Correct Answer:
Tons
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