CCS Chimney Cleaning & Maintenance 3

Question 1

Which chemical product is commonly applied to third-degree glazed creosote to make it more removable by brushing?

Accepted Answer

Creosote removal spray or powder (e.g., Anti-Creo-Soot)

Answer

Products like Anti-Creo-Soot (ACS) are applied to glazed creosote deposits to break down and condition them so they can be mechanically removed.

Question 2

What minimum clearance to combustibles does NFPA 211 typically require between a factory-built fireplace chimney and wood framing?

Accepted Answer

2 inches

Answer

NFPA 211 and manufacturer listings generally require a 2-inch clearance between factory-built chimney components and combustible framing materials.

Question 3

When performing a Level II chimney inspection, which area must be accessed that is NOT required for a Level I inspection?

Accepted Answer

Accessible attic, crawl space, or basement areas

Answer

A Level II inspection requires accessing all readily accessible areas including attic, crawl space, and basement to evaluate the chimney structure.

Question 4

A homeowner reports white staining on the exterior of their masonry chimney. This is most likely caused by:

Accepted Answer

Efflorescence from water carrying mineral salts through the masonry

Answer

Efflorescence is white salt deposits left on masonry surfaces when water migrates through and evaporates, indicating moisture infiltration.

Question 5

What is the correct purpose of a chimney cap with spark arrestor screen?

Accepted Answer

To prevent rain entry and stop sparks from landing on the roof or nearby combustibles

Answer

A chimney cap keeps rain and debris out of the flue and the spark arrestor mesh prevents hot embers from escaping and igniting nearby materials.

(CCS) Certified Chimney Sweeper Practice Test