TREC Home Inspector National Exam – HVAC Questions and Answers Already Passed. Graded A+

TREC Home Inspector National Exam – HVAC Questions and Answers Already Passed. Graded A+ Document Content and Description Below TREC Home Inspector National Exam – HVAC Questions and Answers Already Passed For mechanical systems, a level working space at least _____________________ inches deep and _____________________ i nches wide shall be provided in front of the control side to service an appliance. 30"; 30" When mechanical equipment is located in attics, it shall not be further than _____________________feet from the attic access. 20' Attics containing mechanical appliance shall be provided with an opening and a clear and unobstructed passageway to allow removal of the _____________________ appliance. largest Mechanical appliances installed in attics shall have a luminaire controlled by a switch located at the required _____________________ _____________________ and a receptacle outlet provided at or near the appliance location. passageway opening Mechanical appliances suspended from the floor shall have a clearance of not less than _____________________inches from the ground. 6" Mechanical appliances having an ignition source shall be elevated such that the source of ignition is not less than _____________________above the floor in garages. 18" Supports and foundations for the outdoor unit of a heat pump shall be raised at least _____________________ inches above the ground. 3"A 4-inch radius mitered 45 degree elbow dryer exhaust duct fitting shall reduce the maximum 35- foot length of a dryer duct by _____________________ feet, _____________________inches. 2'; 6" Where a space for a _____________________ _____________________ is provided, an exhaust duct system shall be installed. clothes dryer Under-floor plenums shall be _____________________ in new structures. prohibited Outdoor and return air for a forced-air heating or cooling system shall not be taken from _____________________. closets, bathrooms, toilet rooms, kitchens, garages, boiler rooms, furnace rooms, unconditioned attics, or other dwelling units For mechanical system installations in flood hazard areas, _____________________ _____________________ openings shall be located at or above the required elevation. combustion air Manually operated vent _____________________ shall not be installed except in connectors or chimneys serving solid-fuel-burning appliances. dampers Freestanding or built-in ranges shall have a vertical clearance above the cooking top of not less than _____________________ inches to unprotected combustible material. 30" Sauna heaters shall be equipped with a thermostat that will limit room temperature to not greater than _____________________degrees F. 194⁰F For gas appliance installations using the two-permanent-openings method for combustible air from the outdoors, one opening shall be within _____________________ inches of the top and one within _____________________inches of the bottom of the space. 12"; 12"BTU is the abbreviation for _____________________ _____________________ _____________________, which is the quantity of heat required to raise the temperature of 1 pound of water by 1 degree F. British Thermal Unit Fuel gas piping installed across roof surfaces shall be elevated not less than _____________________ inches above the roof surface. 3 1/2" Where gas piping is concealed and run within _____________________ inches from the edge or wood studs, joists, rafters, and similar members. It shall be protected by shield plates. 1.5" Shield plates, when required, shall cover the area of concealed gas piping and shall extend a minimum of _____________________ inches to each side of a stud, joist, or rafter. 4" Underground fuel gas piping systems shall be installed a minimum depth of _____________________inches below grade. 12" Gas appliance shutoff valves shall be located in the same room as the appliance and not further than _____________________ feet from the appliance. 6' Fuel gas appliance connectors shall not exceed an overall length of _____________________ feet 6' Gas vents over 12 inches in size shall terminate not less than ____________________ feet above the highest point where they pass through the roof. 2' A Type B or a Type L gas vent shall terminate at least _____________________feet in vertical height above the highest connected appliance draft hood or flue collar. Show L