In regards to ductwork, what must be provided at the fan discharge or suction openings?
a) neoprene valves
b) canvas louvres
c) cushion heads
d) diffusers take-off
e) flexible connectors
Answer: E
In regards to ductwork, what must be provided at the fan discharge or suction openings?
a) neoprene valves
b) canvas louvres
c) cushion heads
d) diffusers take-off
e) flexible connectors
Answer: E