When is the indoor metering device bypassed?
A) The heating cycle B) The cooling cycle
C) Both the cooling and defrost cycles D) Both the heating and defrost cycles
A
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No-voltage protection protects ____.
a. only the operator b. either the operator or the equipment c. both the operator and the equipment d. only the equipment
LEED version 4 (LEED v4)?came into effect in 2016.In LEED v4 sustainability rating system, a building may earn a maximum of 110 points. Of these 110 points, 99 points may be earned from the impact of a building on six environmental impact categories, which are: 1. Location and Transportation (LT); 2. Sustainable Sites (SS); 3. Water Efficiency (WE); 4. Energy and Atmosphere (EA); 5. Materials
and Resources (MR); and 6. Indoor Environmental Quality (EQ). Each category has been assigned points, so that the sum total of points in all six categories is 99. The number of points assigned to a category gives its relative importance to sustainability of the building. Which of the six impact categories carries the greatest importance? What will be an ideal response?
During or following an evacuation, which of the following typically indicates a refrigerant circuit has a leak?
a. The vacuum gauge drops rapidly to 500 microns and will not go lower. b. The vacuum gauge shows a pressure rise that continues up to 0 psig when the pump is isolated. c. The vacuum gauge shows a pressure rise but levels off between 1,000 and 2,000 microns when the pump is isolated. d. A constant reading on the vacuum gauge of 500 microns is displayed when the pump is isolated.
Which size pipe has more threads per inch?
A) 3/4 in B) 1 in C) 1 1/2 in D) 1/4 in