One of the main problems / disadvantages associated with boundary ventilation system is:
A. Reversal of air flow
B. Variable volumetric efficiency
C. Lower head requirement
D. Isolation of section in an emergency
Answer:A
One of the main problems / disadvantages associated with boundary ventilation system is:
A. Reversal of air flow B. Variable volumetric efficiency C. Lower head requirement D. Isolation of section in an emergency