Training Exam

TRAINING SEMINAR
FINAL EXAM
Lenore's Checklist
10/8/14

Name:__________________________________________Date:_______________
1) Which factors affect the "draft" of a masonry chimney - its ability to exhaust all the products of combustion?
a) having a cross-sectional area as large as the collar on the appliance or ten times the cross-sectional area of the fireplace opening
b) height of the chimney
c) indoor air pressure
d) free of restrictions - rain cap, spark arretor, damper open
e) all of the above

2) What is the primary fire protection advantages of a masonry chimney? Choose all that apply.
a) chimney wall thickness
b) thermal mass
c) insulation
d) air space
e) longevity - a masonry chimmney lasts 100 years or longer
3) Clay flues are designated by:
a) their effective area
b) their actual interior dimensions
c) their nominal exterior dimensions
d) their weight
e) their ASTM classification

4) When an inside chimney with 4" thick walls passes through a combustible wall or floor or roof how close can it be to combustible material?
a) 1 inch
b) 2 inches
c) in contact
d) in contact if the chimey walls are 8" thick

5) The residential building codes are prescriptive. What does that mean?
a) Copies of the code can picked up in any drug store.
b) You don't need an engineer to approve your plans to get a building permit.
c) Only tested brand name products can be used.
d) It's not required to read the code unless the job is "red tagged".

6) When a chimney is built as part of a structural masonry or veneer masonry wall how close to the chimney can a combustible window or door frame in contact with the masonry wall be located? Choose all that apply.
a) 4 inches
b) 8 inches
c) 12 inches from any interior lining surface
d) Combustible material cannot be in contact with any wall which is in contact with a chimney. You have to have 2" of air space even if the combustible material is six feet from the chimney.

7) Should any air space around a masonry chimney be filled with insulation?
a) No, the air space must not be filled
b) Yes, but make it mineral wool and call it fireblocking

8) In seismic design zones masonry chimneys must have at least one 1/2" rebar grouted vertically in each corner of the chimney, tied horizontally with 1/4" pencil rod at least every 18" of vertical lift. Where exactly in the corners should the vertical rebar be placed? Choose all that apply.
a) between the clay flues, if they are wrapped with insulation or ceramic paper, and the surrounding masonry
b) between the clay flues and the masonry chimney walls but don't use grout
c) within the cells of the masonry units themselves
d in confined spaces formed by the masonry shell and internal masonry wythes

9) Things to consider when building a masonry chimney in an energy efficient home. Choose all that apply.
a) seal and insulate the chimney as it passes through the roof
b) if a damper is used make it a chimney-top damper
c) balance the ventilation system
d) what a good value a masonry chimney is because it lasts 100 years.
10) "Any mason can lay one brick in ten seconds." How long does it take two masons to build a one story block chimney?
a) half a day
b) one day
c) two days
d) depends on the weather, job site preparation, the number of cell phone calls the mason takes and whether or not the hoddy shows up