What would be the required vacuum for an oil furnace located 5 feet above the oil tank with a horizontal run of 20 feet?
What will be an ideal response?
5 x 1 = 5inches for vertical lift 20/10 = 2 inches for horizontal run 5+2=7 inches vacuum
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Describe how determining macroinvertebrate populations help in detecting water pollution
What will be an ideal response?
Oxygen, carbon, and ____ are gases exchanged in soil
a. helium b. lithium c. nitrogen d. calcium
In a closed-loop system, the same fluid (water or water and antifreeze) will absorb heat from the ground in the winter and reject the heat to the ground in the summer.
Answer the following statement true (T) or false (F)
A 40 VA transformer is used on a control circuit to provide 24 volts to the relay and contactor coils of the system. The voltage across the secondary winding of the transformer is only 18 volts. What is most likely the problem?
What will be an ideal response?