What type of vent is used with 80 percent Category I furnaces?
A) 90 percent efficiency furnaces do not require a vent.
B) PVC
C) Type B double-wall gas vent
D) Single-wall stainless steel
C
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Digital devices will not operate with ____________________ voltage inputs.
Fill in the blank(s) with the appropriate word(s).
Which improper operation does not lead to exposure to chemicals?
A) Tower not vented B) No cooling liquid on condenser C) Rapid changes in column control and set points D) Opening a bleed valve on a vacuum column
A dormer is an opening framed into the roof to allow for window placement.
Answer the following statement true (T) or false (F)
You should back and turn toward the drivers side
1) Unless you would have to drive around the block first 2) So you can watch the rear of the vehicle by looking out the side window. 3) If you do not have someone to help you.