CCS CCS Fireplace Anatomy & Components 2

Question 1

What is the purpose of the damper in a fireplace?

Accepted Answer

To control the flow of air and combustion gases between the firebox and the flue, and to close the flue when the fireplace is not in use

Answer

The damper regulates airflow during fires and seals the flue when closed to prevent heat loss and animal entry when the fireplace is not being used.

Question 2

A top-sealing damper differs from a traditional throat damper because it:

Accepted Answer

Mounts at the top of the chimney and seals the entire flue with a rubber gasket when closed

Answer

Top-sealing dampers install at the top of the flue and seal with a rubber gasket, providing a much better energy seal than traditional throat dampers and also serving as a cap.

Question 3

What is the correct name for the sloped, angled sides of the smoke chamber?

Accepted Answer

Corbels or haunches that step the walls inward toward the flue

Answer

The sloped side walls of the smoke chamber are called corbels or haunches, and NFPA 211 limits the corbel angle to no more than 45 degrees from vertical for proper draft.

Question 4

The firebox opening height-to-width ratio affects draft performance. A generally accepted ratio for proper draft in a standard US masonry fireplace is:

Accepted Answer

Opening height should be roughly 2/3 of the opening width

Answer

A firebox opening where the height is approximately 2/3 of the width follows traditional proportions that balance combustion air intake with proper draft velocity.

Question 5

Firebrick used in a firebox is different from common brick because it:

Accepted Answer

Is manufactured to withstand repeated high-temperature cycles without spalling or cracking

Answer

Firebrick is made from refractory clay fired at high temperatures to create a dense, heat-resistant material capable of withstanding the thermal cycling inside a firebox.

(CCS) Certified Chimney Sweeper Practice Test

(CCS) Certified Chimney Sweeper Practice Test

CCS CCS Fireplace Anatomy & Components 2