What effect do volatile liquids stored near the furnace have on its performance?
A) They damage vent work. B) They can produce flammable vapors.
C) They help to create carbon monoxide. D) They corrode furnace components.
B
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Air conditioning overcurrent protective devices can never exceed what percentage of the motor-rated load current or the branch circuit selection current (whichever is greater)?
a. 150% b. 175% c. 225% d. 300%
For making accurate cuts across the narrow dimension of gypsum board, always use a _____.
a. T-brace b. utility saw c. hook-bill knife d. T-square
____ provides a 30-year limited warranty against mold, rot, and pests; however, it is not approved for sill plates or masonry and concrete contact applications.
A. Sheathing B. BluWood C. Greenwood D. Frothing
The proton exchange membrane fuel cell is relatively inexpensive to manufacture.
Answer the following statement true (T) or false (F)