Fireplace and Chimney (Leaving Cert Construction Studies): Quizzes
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10 questions from this quiz
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Practise the questions
10 questions from this quiz
What type of air pressure must be created at the top of a chimney stack for proper ventilation?
What type of air pressure must be created at the top of a chimney stack for proper ventilation?
Low pressure
What problem occurs if adequate low pressure cannot be created at the chimney top?
What problem occurs if adequate low pressure cannot be created at the chimney top?
Downdraughts
For pitched roofs below 30°, where does wind create suction zones?
For pitched roofs below 30°, where does wind create suction zones?
Leeward side
What is the minimum height a chimney must extend above its highest roof contact point?
What is the minimum height a chimney must extend above its highest roof contact point?
1 metre
What is the minimum total height required for a chimney above the fireplace opening?
What is the minimum total height required for a chimney above the fireplace opening?
4.5 metres
For roof pitches less than 10°, what is the minimum clearance required above the ridge line?
For roof pitches less than 10°, what is the minimum clearance required above the ridge line?
600mm
What happens to chimney width as chimney height increases?
What happens to chimney width as chimney height increases?
Increases proportionally
What provides the primary weather seal at the top of a chimney?
What provides the primary weather seal at the top of a chimney?
Precast concrete cap
What layer sits beneath the chimney cap for weather protection?
What layer sits beneath the chimney cap for weather protection?
DPC layer
Which factor does NOT affect the location of pressure zones around a building?
Which factor does NOT affect the location of pressure zones around a building?
Building colour