NBC 2015 - Section 9.33
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Questions and Answers

Which code should the design, construction, and installation of solid-fuel-burning appliances conform to?

  • CSA B366
  • CSA B368
  • CSA B367
  • CSA B365 (correct)

What section should fireplaces conform to?

  • Section 9.22 (correct)
  • Section 9.55
  • Section 9.33
  • Section 9.44

What is the maximum rated heat input for air duct systems that should conform to this subsection?

  • 120 kW (correct)
  • 150 kW
  • 200 kW
  • 180 kW

Which materials are permitted for the construction of ducts, duct connectors, associated fittings, and plenums in air duct systems?

<p>Steel, aluminum alloy, copper, clay, asbestos-cement (D)</p> Signup and view all the answers

What are the requirements for tape used for sealing duct joints in air duct systems?

<p>Meet flame-resistance requirements for fabric (A)</p> Signup and view all the answers

According to Section 9.33.1.1, which of the following is true about the application of this section?

<p>This section applies to heating and air-conditioning systems serving only one dwelling unit (C)</p> Signup and view all the answers

According to Section 9.33.1.1, what should the design and installation of heating systems and air-conditioning systems other than those described in Sentence (1) conform to?

<p>Part 6 (C)</p> Signup and view all the answers

According to Section 9.33.1.1, can air duct distribution systems serving one of the dwelling units in a house with a secondary suite be directly interconnected with other parts of the house?

<p>No (D)</p> Signup and view all the answers

According to Section 9.33.2.1, which buildings are required to be equipped with heating facilities conforming to this section?

<p>Residential buildings intended for use in the winter months on a continuing basis (D)</p> Signup and view all the answers

According to Section 9.33.3.1, what is the required indoor air temperature at the outside winter design temperature for living spaces in residential buildings?

<p>22°C (D)</p> Signup and view all the answers

Which publication is NOT mentioned as a source of good practice for the design of heating and air-conditioning systems?

<p>Hydronics Institute Manuals (D)</p> Signup and view all the answers

Which code is NOT mentioned as applicable for the installation of heating and air-conditioning equipment?

<p>CSA B214 (B)</p> Signup and view all the answers

What type of equipment forming part of a heating or air-conditioning system should be protected from freezing?

<p>Mechanical equipment (C)</p> Signup and view all the answers

In what type of location should heating and air-conditioning equipment with fuel or power connections be secured to the structure?

<p>Garage (B)</p> Signup and view all the answers

What should not be used in air distribution systems or equipment where asbestos fibres could enter the air supply or return systems?

<p>Asbestos (A)</p> Signup and view all the answers

Which type of insulation is permitted to be used to insulate a galvanized steel, stainless steel, or aluminum air duct?

<p>Foamed plastic insulation (B)</p> Signup and view all the answers

What is the minimum distance that the foamed plastic insulation applied to supply ductwork should be from the furnace bonnet?

<p>3 m (B)</p> Signup and view all the answers

What is the maximum temperature allowed within the ductwork where the insulation is installed?

<p>50°C (A)</p> Signup and view all the answers

How should duct joints be taped?

<p>With a product conforming to Sentence 9.33.6.3.(1) (A)</p> Signup and view all the answers

What are the options for protecting the foamed plastic insulation?

<p>All of the above (D)</p> Signup and view all the answers

Which of the following is true about calculating the design heat loss in basements and heated crawl spaces?

<p>The calculated heat gain from the supply ducts and plenum surfaces is considered (B)</p> Signup and view all the answers

What is the maximum temperature allowed for supply air at warm-air supply outlets?

<p>70°C (A)</p> Signup and view all the answers

Where should warm-air supply outlets be located in finished areas?

<p>Provided with diffusers and adjustable openings (A)</p> Signup and view all the answers

Where should return-air inlets not be installed?

<p>In a crawl space providing combustion air to a furnace (D)</p> Signup and view all the answers

What areas are exceptions to the installation of return-air inlets?

<p>Unfinished areas (C)</p> Signup and view all the answers

What is the required clearance between a supply duct and combustible material when the plenum clearance is 75 mm or less?

<p>Equal to the required plenum clearance within 450 mm of the plenum (A)</p> Signup and view all the answers

What is the required clearance between a supply duct and combustible material when the plenum clearance is more than 75 mm but not more than 150 mm?

<p>Equal to the required plenum clearance within a horizontal distance of 1.8 m of the plenum (A)</p> Signup and view all the answers

What is the required clearance between a supply duct and combustible material when the plenum clearance is more than 150 mm?

<p>Not less than 25 mm at a horizontal distance of 1.8 m or more from the plenum (C)</p> Signup and view all the answers

What type of grilles, diffusers, and other devices for supply and return air openings are allowed in bathrooms?

<p>Combustible grilles with a flame-spread rating of not more than 200 (C)</p> Signup and view all the answers

How many warm-air supply outlets should be provided for each 40 m2 of floor surface area in unfinished basements serving dwelling units?

<p>At least one (A)</p> Signup and view all the answers

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