The Official CSIA Exam – Questions With Fully
Explained Solutions
What is a corbel? Correct Answer - masonry projecting upward and
outward from a wall or chimney
A cricket is designed to_________. Correct Answer - redirect water and
snow away from the chimney
What is a wythe? Correct Answer - A course of brick separating flues
within a chimney
When a round flue is used for the lining of a fireplace chimney the proper
fireplace opening to flue size ratio should be? Correct Answer - 12:1
Where unlined the smoke chamber walls shall be what thickness? Correct
Answer - 8"
When the opening of the fireplace is 6 square feet the extension of the hearth
should be __________ ? Correct Answer - 20 inches
The inner surfaces of the smoke chamber shall not be inclined more than 45
degrees from vertical: true or false? Correct Answer - True
A level II inspection includes inspection of accessible areas of attics,
basements,and crawlspaces: true or false? Correct Answer - True
The purpose of a heat reclaimer is to _______? Correct Answer - extract
heat from the flue gases.
What answer best describes the allowable free air space around a flue tile?
Correct Answer - 1/2" to 4"
Crickets are recommended whenever the chimney is ____ wide or more.
Correct Answer - 30"
The maximum allowable slope of an offset in a vertical flue is ___________.
Correct Answer - 30 degrees
, The net area of the spark arrestor must not be less than three times the net
free area if the chimney flue: true or false? Correct Answer - True
What is the minimum thickness of a wythe? Correct Answer - Four
inches nominal
Chimney liners are listed to what standard? Correct Answer - UL 1777
NFPA 211 recommends annual cleaning of chimneys,fireplaces, and vents:
true or false? Correct Answer - False
The horizontal length of a single-wall connector to a natural draft chimney or
vent serving a single appliance shall be not more than ______ of the height of
the vertical height of the chimney. Correct Answer - 75%
The effective area of a connector for a single appliance shall be ____ the area of
the appliance flue collar. Correct Answer - not less than
Cleanout openings shall be provided in all chimney flues serving freestanding
appliances: true or false? Correct Answer - true
Which of the following species may cause anaphylactic shock? Correct
Answer - bees
A type 3 ladder is rated for ______ . Correct Answer - 200lbs
Wood burns in three identifiable stages: ____________, ____________, and
____________. Correct Answer - drying, pyrolysis , charcoal
The volume of gases which actually pass through the system as a result of
draft is___________. Correct Answer - flow
Rectangular flues with aspect ratios greater than 2 to 1 shall be sized at least
____ of fireplace opening. Correct Answer - 1:8
Single wall connector clearance for an unlisted gas appliance with a draft hood
is_____________. Correct Answer - 9 inches
Explained Solutions
What is a corbel? Correct Answer - masonry projecting upward and
outward from a wall or chimney
A cricket is designed to_________. Correct Answer - redirect water and
snow away from the chimney
What is a wythe? Correct Answer - A course of brick separating flues
within a chimney
When a round flue is used for the lining of a fireplace chimney the proper
fireplace opening to flue size ratio should be? Correct Answer - 12:1
Where unlined the smoke chamber walls shall be what thickness? Correct
Answer - 8"
When the opening of the fireplace is 6 square feet the extension of the hearth
should be __________ ? Correct Answer - 20 inches
The inner surfaces of the smoke chamber shall not be inclined more than 45
degrees from vertical: true or false? Correct Answer - True
A level II inspection includes inspection of accessible areas of attics,
basements,and crawlspaces: true or false? Correct Answer - True
The purpose of a heat reclaimer is to _______? Correct Answer - extract
heat from the flue gases.
What answer best describes the allowable free air space around a flue tile?
Correct Answer - 1/2" to 4"
Crickets are recommended whenever the chimney is ____ wide or more.
Correct Answer - 30"
The maximum allowable slope of an offset in a vertical flue is ___________.
Correct Answer - 30 degrees
, The net area of the spark arrestor must not be less than three times the net
free area if the chimney flue: true or false? Correct Answer - True
What is the minimum thickness of a wythe? Correct Answer - Four
inches nominal
Chimney liners are listed to what standard? Correct Answer - UL 1777
NFPA 211 recommends annual cleaning of chimneys,fireplaces, and vents:
true or false? Correct Answer - False
The horizontal length of a single-wall connector to a natural draft chimney or
vent serving a single appliance shall be not more than ______ of the height of
the vertical height of the chimney. Correct Answer - 75%
The effective area of a connector for a single appliance shall be ____ the area of
the appliance flue collar. Correct Answer - not less than
Cleanout openings shall be provided in all chimney flues serving freestanding
appliances: true or false? Correct Answer - true
Which of the following species may cause anaphylactic shock? Correct
Answer - bees
A type 3 ladder is rated for ______ . Correct Answer - 200lbs
Wood burns in three identifiable stages: ____________, ____________, and
____________. Correct Answer - drying, pyrolysis , charcoal
The volume of gases which actually pass through the system as a result of
draft is___________. Correct Answer - flow
Rectangular flues with aspect ratios greater than 2 to 1 shall be sized at least
____ of fireplace opening. Correct Answer - 1:8
Single wall connector clearance for an unlisted gas appliance with a draft hood
is_____________. Correct Answer - 9 inches
