An insulation and acoustical contractor installs any insulating media and preformed architectural acoustical materials for the purpose of temperature and/or sound control.
Authority cited: Sections 7008 and 7059, Reference: Sections 7058 and 7059 (Business and Professions Code)
Content of the Examination
The Insulation and Acoustical (C-2) Examination is divided into six major sections. These sections are:
1. Job Preparation (15%)
Plans and specifications
2. Acoustical Systems (31%)
Grid layout and framing
Acoustical, panels, and tiles
Carrier channel requirements
Trims and finishes
3. Hand-Installed Insulation (21%)
Fire and smoke control
Vapor and air barriers
Mechanical insulation fasteners
Mechanical & HVAC insulation
4. Blow-in Insulation (7%)
5. Spray-in Insulation (5%)
6. Safety (21%)
Equipment and tools
*Percentages are approximate*
The following questions are typical of the types of items that are on the examination. The correct answer is highlighted.
1. A contractor is to install an acoustical ceiling in a building having a heating-cooling system that makes use of pressurized plenums. The contractor places the ceiling after the venting system is installed, but before it is placed in operation. How has the contractor proceeded?
INCORRECTLY- the system is to be in operation for 48 hours before the ceiling is installed.
INCORRECTLY- acoustical ceilings are never used with pressurized plenums.
INCORRECTLY- the ceiling must be in place before the venting system is installed.
2. Specifications call for the installation of Kraft-faced insulation in a metal stud wall with studs spaced 16" o.c. The insulation sent by the supplier has stapling flanges. Which of the following actions would be appropriate in this situation?
staple the paper to the studs.
attach flanges to studs with adhesives
use mechanical fasteners
send the insulation back
3. When installing insulation in the interior of a duct, which of he following characteristics of insulation would be MOST effective in reducing sound transmission?
*All questions are written and reviewed by licensed contractors who are actively working in the field*
Cal/ OSHA State of California Construction Safety Orders.
California Code of Regulations, Title 8, Industrial Relations, Chapter 4, Subchapter 4,