According to Figure 2, where can information on Panel A be located?
a. The panelboard schedule
b. The equipment schedule
c. The electrical schedule
d. The branch circuit schedule
a. The panelboard schedule
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If 750 compacted cubic yards (ccy) of in-place soil is required for a project, how many loads of import will be required? The import material has a swell of 30 percent and shrinkage of 90 percent. The trucks can haul 10 loose cubic yards.
What will be an ideal response?
Why is it necessary to have controls for maintaining a minimum high-side pressure on outdoor air-cooled condensers?
A) The refrigerant will not condense if it is excessively cooled. B) Compressors will not operate correctly if the compression ratio is too low. C) The chemical components in the refrigerant will separate if the pressure is allowed to drop below the normal minimum operating pressure. D) Refrigeration metering devices require a minimum pressure drop to operate.
Which of the following is a step in checking a system's defrost cycle?
A) Set the defrost thermostat to a higher temperature. B) Turn off the pressure switch. C) Short the test pins together. D) Clear the area around the outdoor coil.
The SI unit for specific gravity is
a. g/cm^3 b. g/ml c. kg/m^3 d. unitless