A fan can be used to circulate air around a room. The pressure at the inlet side of the fan is
A. less than the pressure at the outlet side and less than atmospheric pressure..
B. less than the pressure at the outlet side but more than atmospheric pressure.
C. equal to the pressure at the outlet side.
D. more than the pressure at the outlet side.
Answer:A
A fan can be used to circulate air around a room. The pressure at the inlet side of the fan is
A. less than the pressure at the outlet side and less than atmospheric pressure.. B. less than the pressure at the outlet side but more than atmospheric pressure. C. equal to the pressure at the outlet side. D. more than the pressure at the outlet side.