Flue gas condensation can be prevented by:
A) Using double wall vent.
B) Passing the combustion gases over a dehumidifier before sending them up the vent.
C) Using single wall vent.
D) Running a dehumidifier in the room with the furnace.
A
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Abbreviations and class codes can be found in the _____.
a. ISOs b. plan view c. mechanical symbology page d. elevations
Ecodormancy is the same as quiescence, which is dormancy imposed by external blocks
Indicate whether the statement is true or false
The United States' frequent intervention in the affairs of Latin American countries in the early 20th century
A. established political stability in the area. B. was appreciated in the region as an effective cloak of defense against European threats. C. was a "Bad Neighbor" policy that left a legacy of ill will and distrust of the United States throughout Latin America. D. departed from Theodore Roosevelt's big-stick diplomacy. E. was intended to spread democracy to the region.
Worn or defective bearings in the pump or motor can cause _____
A) cavitation B) excess lubrication C) noise and vibration D) excessive suction pressure