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2goodgabe 2goodgabe
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6 years ago
When is the outdoor metering device bypassed?
 
  A) The cooling cycle B) When it is plugged
  C) Both the cooling and heating cycles D) The heating cycle


[Ques. 2] The enthalpy lines are nearly parallel to the lines for:
 
  A) Wet-bulb temperature. B) Grains of moisture.
  C) Volume. D) Dry-bulb temperature.


[Ques. 3] The normal oxygen and carbon dioxide percentages in the flue gas of a properly operating gas furnace are approximately:
 
  A) 7.5 percent. B) 12 percent. C) 21 percent. D) 10 percent.


[Ques. 4] Typically, on mini-split systems the line set going to the outdoor unit carries ________ pressure, ________ temperature saturated liquid and vapor mix. The line going back to the outdoor unit carries ________ pressure superheated vapor.
 
  A) low, high, high B) low, low, low C) high, high, low D) low, high, low


[Ques. 5] What should always be running when the chiller is operating?
 
  A) Condenser-cooling water pump B) Mixed-air damper outlet
  C) Chilled air-handler fan D) Cooling tower fan and damper
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BetardsamereBetardsamere
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6 years ago
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2goodgabe Author
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