1. Which of the following is the best insulation? a. Aluminum b. Styrofoam c. Blanket d. Batted 2. What is the allowable conductance when wrapping ducts? a. 0.05 b. 0.16 c. 0.24 d. 0.48 3. Which of the following is the smallest wire permitted when wrapping air-conditioning ducts? a. 24 gage b. 18 gage c. 16 gage d. 14 gage 4. What insulation should be used when wrapping chilled water pipe? a. Vapor-resistant adhesive b. Plumber's tape c. Cellulose fiber d. Mastic 5. STC is an acronym for which of the following? a. Static Transmission Classification b. Secondary Trade Classification c. Sound Transmission Classification d. Sound Transmission Commission 6. FSK-25 insulation is used in which of the following? a. Interior insulation only b. Non-fire-rated applications c. Non-Commercial exposed fire-resistant buildings d. Commercial exposed fire-resistant buildings 7. STL is an acronym for which of the following? a. Single Type Layer b. Sound Transmission Loss c. Sound Temperance Layer d. Secondary Type Locator 8. One inch of polyurethane insulation is equal to what R-value?