Chimneys draw smoke up better on windy days partly because:

  1. wind pushes smoke down
  2. smoke is heavier
  3. the fire gets colder
  4. wind across the top lowers the pressure there
Answer

D) wind across the top lowers the pressure there

Bernoulli effect. SLO P-11-B-44 · Application

Physics MCQ · More Fluid Statics and Dynamics MCQs · Practise