The most effective method for maintaining acceptable indoor air ...

[Capo]

The most effective method for maintaining acceptable indoor air quality is:
 
  A) Reduction and/or elimination of the pollutant sources.
  B) Banks of ultraviolet lights installed in the ductwork and over the coil.
  C) Increased ventilation.
  D) Better quality filtration.

Question 2

How are oil burner nozzles rated?
 
  A) Cone shape, spray angle, and GPH B) Spray angle, BTUH, and GPH
  C) Cone shape, GPH, and BTUH D) GPH, VUS, and GPH

[jharrington11]

Answer to Question 1

A

Answer to Question 2

A

[Capo]

Thanks for the timely response, appreciate it

[cam1229]

Gracias!