Natural and Mechnaical Ventilation (Leaving Cert Construction Studies): Quizzes
📚Quizzes
Practise the questions
10 questions from this quiz
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Practise the questions
10 questions from this quiz
What are the two main approaches to ventilation systems?
What are the two main approaches to ventilation systems?
Natural and mechanical ventilation
What does natural ventilation rely on to create air movement?
What does natural ventilation rely on to create air movement?
Weather conditions outside the building
What problem occurs when excessive warm air escapes from a building?
What problem occurs when excessive warm air escapes from a building?
Over-ventilation with draughts
What issues result from under-ventilation in buildings?
What issues result from under-ventilation in buildings?
Mould growth and condensation problems
What does purge ventilation provide?
What does purge ventilation provide?
Rapid air exchange
Where are extract fans specifically designed to be used?
Where are extract fans specifically designed to be used?
Wet or very humid areas
What ACH rate effectively controls condensation in a building?
What ACH rate effectively controls condensation in a building?
0.5 to 1.5 ACH
Why is MVHR a reliable alternative to natural ventilation?
Why is MVHR a reliable alternative to natural ventilation?
It doesn't depend on weather conditions
Where is the MVHR control unit usually installed?
Where is the MVHR control unit usually installed?
In the attic space
How often should MVHR filters be cleaned or replaced?
How often should MVHR filters be cleaned or replaced?
Every 3-6 months