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21 Multiple choice questions

  1. A floor furnace needs how much clearance to soil?
  2. Minimum height for a "B" vent penetrating the roof is
  3. Minimum clearance of a "B" vent to a combustible material is...
  4. Floor-register type furnace can't be closer to the wall than...
  5. Forced air furnace with an open draft hood and open burners is considered.....
  6. A fan downstream from the heat exchanger is intended to
  7. Oil burning appliance vents are usually vented with what type of pipe?
  8. Te max distance from the attic access to an attic furnace is...
  9. Flexible dryer vents are only allowed between the dryer and a...
  10. Before operating a whole house fan you should....
  11. Typical minimum temp on a hydronic heating system is.....
  12. Hydronic heating systems do have something that is not found in steam systems?
  13. A furnace in an interior closet can have it's lower and upper combustion air sources vented to the.....
  14. Every forced air furnace must have an electrical disconnect....
  15. Sight glass is not found in hydronic heating systems, but is found in what other type?
  16. All gas forced air furnaces must have a safety device that shuts off the gas in the event the pilot goes out called a.....
  17. An operable back-draft damper is required on....
  18. Low efficiency furnace could be located in the.....
  19. A "B" vent termination must be at least 2 feet higher than any wall within...
  20. How much clearance does a wall furnace need?
  21. The Venturi on a gas burner controls the....