What capacity system will provide the best dehumidification in cooling for a house with a design heat gain of 2 tons?
A) A 4 ton system B) A 3 ton system C) A 2 ton system D) A 2.5 ton system
C
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The area under the ash dump is formed with masonry into a chase or squared hole that leads directly to the end of an air tube.
Answer the following statement true (T) or false (F)
Answer the following statements true (T) or false (F)
1. When control joints are provided in a stucco-clad wall, expansion joints are unnecessary. 2. Expansion joints are required in an EIFS-clad wall. 3. When vertical support channels are used in stone cladding, dead-load supports and tiebacks are not required for stone slabs. 4. The weight of insulated metal panels and stone-honeycomb panels is approximately the same.
Answer the following statement(s) true (T) or false (F)
1. A nonconductive optical fiber cable for general-purpose use is marked as Type OFC. 2. The width of the cable tray is equal to the difference between the diameters of the cables. 3. Cable trays containing conductors that operate at over 600 volts are to be clearly marked at regular intervals to indicate that the contents are high-voltage cables. The specific marking is to state “Danger – High Voltage – Keep Away” 4. A single solid aluminum conductor not smaller than 250 kcmil is permitted in the cable, or the conductor is permitted to be formed using up to nineteen 250-kcmil solid aluminum rods laid parallel. 5. A welder is not to be considered as a separately derived premises system.
What is the formula for capacitive reactance?
a. 
b. 
c. 
d. 