Floor furnaces shall not be closer than 6 inches to the nearest wall and not less than _____ inches from the two adjoining sides

Excess air for combustion appliances consists of:

Which of the following capacitors or combination of capacitors could be used to replace a 35 mfd, 370 volt run capacitor?

 A type of drawing that shows the exact layout for a run of ductwork, including the sizes and types of duct fittings and the types of connectors and hangers is a___________.

When fastening PVC vent pipe, you must follow the manufacturer’s instructions. If a primer is required, it must be __________

To reverse the rotation of a three phase motor it is necessary to:

There shall be a minimum of ____ inches of clearance between the cooking top and combustible material above the hood. The hood shall be at least as wide as the open top broiler unit and be ________ over the unit.

A copy of the permit must be kept on the work site until all inspections are completed.

Indoor air quality issues can originate in any part of a building.  One of the more obvious origins, and an area most often blamed for IAQ problems, is:

What size should the combustion air ducts be for a mechanical room with an 90,000 BTU/hr furnace and a 35,000 BTU/hr water heater if the air is traveling through horizontal ducts from the outside?