Читать книгу Installation, starting and adjustment of ventilation and air conditioning systems A Guide - - Страница 25

1. What are the disadvantages of circular ducts?

2. What are the advantages of rectangular ducts?

3. What material is used in the manufacture of air ducts for buildings and structures for general civil purposes?

4. What factors influence the choice of material for the manufacture of metal ducts?

5. How does the use of flexible air ducts affect the extended sections of the routes of ventilation systems?