최신International Code Council Commercial Mechanical Inspector - M2무료샘플문제

A. Threaded coupling

B. Solvent cement

C. Rubber cement

D. Compression coupling

A. where the assembly has been tested to ASTM E84.

B. where the flame spread index is not more than 25.

C. where the assembly has been tested to ASTM B84.

D. where the assembly has been tested to UL 723.

A. 20

B. 15

C. 10

D. 50

A. 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.

B. shall not be less than 3/4-inch PVC pipe or equivalent approved material.

C. shall be made of an approved pipe and be at least 1/2-inch in diameter.

D. shall have all horizontal sections of drain piping installed with a minimum of 1/4 inch per foot slope.

A. be installed in accordance with the design professional's plans as approved by the local building official.

B. terminate not less than 5 feet vertically above the highest connected appliance draft hood outlet or flue collar.

C. be installed in accordance with their listings and the manufacturer's installation instructions.

D. terminate not less than 5 feet vertically above the lowest connected appliance draft hood outlet or flue collar.

A. [option text not fully visible in the material you sent]

B. 15

C. 80

D. [option text not fully visible in the material you sent]