How deep a cut can be made in solid wood floor joists to ...

[Jkov05]

How deep a cut can be made in solid wood floor joists to accommodate ductwork?
 
  A) Up to half the depth of the joist may be cut out from the top of the joist.
  B) The joist can be completely severed so long as successive joists are not cut.
  C) Up to half the depth of the joist may be cut out from the bottom of the joist.
  D) No cuts can be made in solid wood floor joists for ducts.

Question 2

How does the liquid turn back into vapor during the heating cycle?
 
  A) The indoor check valve is opened to allow heat in.
  B) Heat is taken from the outside air.
  C) The indoor check valve closes to keep heat in.
  D) Heat is added in the condenser.

[Moriaki]

Answer to Question 1

D

Answer to Question 2

B

[Jkov05]

Gracias!

[irishcancer18]

Excellent