C-20 Heating, Ventilating and Air Conditioning

NOTE: All questions are written and reviewed by licensed contractors who are actively working in the field.

The following questions are typical of the kind of items that are on the examination.

The correct answer is highlighted.

1. What type of fan uses a rotating drum to move air into a duct?
   
   
   • a. Rotating
   • b. Axial
   • c. Tube axial
   • d. Centrifugal
   
   
2. When pressurizing an air conditioning systemfor leak detection, the pressure in the system must never exceed _______ .
   
   
   • a. high side test pressure rating
   • b. low side test pressure rating
   • c. 500 psig
   • d. 500 psia
   
   
3. An employer must report to the _________ any operations involving a cacinogen and any incident of potential exposure to a carcinogen.
   
   
   • a. County inspector
   • b. Supervisor
   • c. hardous manterial board
   • d. Chief Division of Occupational Safety & Health