M2 무료 덤프문제 온라인 액세스

The minimum size for access openings for fire dampers shall be:

• A.the same as the dimension of the duct.
• B.12 inches by 12 inches.
• C.adequate to permit maintenance and resetting of the damper.
• D.one-half the diagonal of the access opening.

Supports for hazardous exhaust duct shall be constructed of:

• A.material complying with UL 181.
• B.plastic.
• C.fibrous material.
• D.noncombustible material.

For gas piping installations, which of the following is an acceptable joining method for polyethylene (PE) pipe?

• A.Compression coupling
• B.Solvent cement
• C.Threaded coupling
• D.Rubber cement

When a permit is issued, the code requires that one set of approved plans and specifications be returned to the applicant.
This set of plans and specifications shall be:

• A.filed with the county clerk or jurisdiction to properly record the property.
• B.returned to the architect.
• C.retained by the applicant for at least one year after the job is finished in the event modifications are made.
• D.kept on the building site.

A cooling system with a condensate disposal system:

• A.shall have all horizontal sections of drain piping installed with a minimum of 1/4 inch per foot slope.
• B.shall be made of an approved pipe and be at least 1/2-inch in diameter.
• C.shall be made of approved corrosion-resistant material and shall not decrease in size from the drain pan connection to the place of condensate disposal.
• D.shall not be less than 3/4-inch PVC pipe or equivalent approved material.