Idaho Plumbing Code Exam

Plastic piping used for venting water heaters shall be - ANS approved It shall be unlawful for any person to install, remove, or replace any water heater without first - ANS btaining a permit form the Authority Having Jurisdiction Vent connectors of natural draft appliances ____ be connected to mechanical draft systems operating under positive pressure. - ANS shall not A vent connector connected to a chimney flue serving a fireplace is - ANS prohibited unless the fireplace flue opening is permanently sealed A draft hood-equipped water heater is vented through a concealed space. The portion of the vent passing through the concealed space shall - ANS be listed Type B, Type L, or listed material having equivalent insulating qualities The minimum capacity for a storage water heater is - ANS based on the "first hour rating" and the number of bedrooms and bathrooms A water heater installed in a residential garage shall be - ANS located or protected from damage by a moving vehicle A final water heater inspection shall be made after - ANS work authorized by the permit has been installed Water heaters of other than the direct-vent type shall be located - ANS as close as practical to the chimney or gas vent A three-bedroom home with two bathrooms is equipped with a gas storage-type water heater. The minimum capacity for the water heater in accordance with the first hour ratings is - ANS 67 gallon Outdoor combustion air shall be supplied by - ANS one or two permanent openings Indoor combustion air supplied by suing the "Standard Method" requires a minimum volume of - ANS 50 cu. ft. per 1,000 Btu/hr Combustion air ducts shall - ANS serve a single space Combustion air ducts that terminate in an attic shall - ANS not be screened Draft hood-equipped and other fuel-burning Category I water heaters may be installed in closets, bedrooms and bathrooms provided - ANS the closet has a listed, gasket door assembly and a listed self-closing device Water heaters supported from the ground shall rest on - ANS a level concrete or other approved base Where damage may result from a leaking water heater, a watertight pan of corrosion-resistant materials shall be installed beneath the water heater when it is located in an attic or - ANS a floor-ceiling assembly Plastic piping may be used to vent a water heater if the water heater is - ANS listed for use with that material A special gas vent shall only be installed on a water heater if - ANS it is listed and installed per the listing and the manufacturer's instructions Water heaters incorporating integral venting means shall be considered properly vented when - ANS Installed per the manufacturer's instructions and the referenced code sections Water heater draft hoods or barometric draft regulators shall be - ANS installed in the same room or enclosure as the water heater The maximum horizontal length of a 5-inch vent connector for water heater shall not exceed - ANS 7 1/2 feet A Type B vent with listed cap of 14 inches shall terminate at ____ higher than any portion of a building within 10 feet. - ANS 2 feet A water heater is installed on the roof of a building more than 15 feet in height. The code requires ____ to the roof unless other means acceptable to the Authority Having Jurisdiction are used. - ANS an inside means of access When using an alternate method of sizing with two vent connectors for draft hood-equipped water heaters, the effective area of the common vent connector or vent manifold an all junction fittings shall not be less than the area of the larger vent connector plus ____ percent of the areas of smaller flue collar outlets. - ANS 50 In seismic design categories ____, water heaters shall be anchored or strapped to resist horizontal displacement due to earthquake motion. - ANS C, D, E, and F Where utilizing louvers and grills to provide combustion air, and the design and free area are not known, it shall be assumed that wood louvers will have ____ percent free area and metal louvers and grills will have ____ percent free area. - ANS 25, 75 Exit terminals of mechanical draft systems shall not be less than ____ above grade where located adjacent to public walkways. - ANS 7 feet Clearances for listed water heaters shall be - ANS in accordance with the listing and the manufacturer's instructions Water heaters installed in residential garages shall be installed so that all burners and burner-ignition devices are located not less than 18 inches above the floor unless - ANS the water heater is listed as flammable vapor ignition resistant Where providing combustion air for draft hood-equipped water heaters installed in repair garages, all combustion air shall be obtained from - ANS outside the building Water heaters not listed for outside installation but installed outdoors shall be provided with - ANS protection to the degree that the environment requires A Type B gas vent shall terminate at least ____ feet above the highest connected equipment draft hood or flue collar. - ANS 5