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?

The input Btu rating of a gas furnace is 105,000 Btu. The gas heating value of one cubic foot of natural gas is 1030 btu. Calculate the cubic feet per hour of gas the furnace requires to operate. (Rounded up to whole numbers)

Outdoor combustion air shall be provided through openings not less than 3 inches. Attics and crawl spaces are an acceptable source of combustion air when they are vented by mechanical means.

Arc-resistant-jacketed CSST is considered bonded when it is connected to an appliance that is properly grounded..

The voltmeter will have to be connected to the circuit or load in _________ in order to determine the applied voltage or voltage drop of the loads in the circuit.