Ducts of large dimensions must be diagonally creased to
a) provide stiffness
b) allow gradual duct size change
c) decrease duct weight
d) increase air velocity
e) decrease air friction in the duct work
Answer: A
Ducts of large dimensions must be diagonally creased to
a) provide stiffness
b) allow gradual duct size change
c) decrease duct weight
d) increase air velocity
e) decrease air friction in the duct work
Answer: A