Hvac Unit 38 Review Practice Questions 2024.

Hvac Unit 38 Review Practice Questions 2024. One drawback of using custom made, pre-measured duct sections is that ____. - CORRECT ANSWER all of the above The reason many installations utilize a straight main trunk line with flexible duct runs to the individual register boots is to ____. - CORRECT ANSWER all of the above What two fasteners are used with sheet metal square and rectangular duct? - CORRECT ANSWER S fasteners and drive cleats What fastener is commonly used with round flexible duct? - CORRECT ANSWER self tapping screws and draw bands What two fasteners are used with fiberglass duct? - CORRECT ANSWER staples and tape A good way to fasten insulation to the inside of sheet metal duct is to use ____. - CORRECT ANSWER tabs and adhesives A trap in the condensate line prevents ____. - CORRECT ANSWER all of the above An auxiliary drain pan under an air handler is required when the air handler is installed ____. - CORRECT ANSWER all of the above A boot in a duct system is used ____. - CORRECT ANSWER between branch duct and register