Physics
NULL
Medium
Question
A chimney works best if air exposed to the chimney is______________?
A
Stationary
B
Moving
C
Moving slowly
D
Moving fast
✓ Official correct answer
Community credibility
Registered members can vote for the answer they believe is correct today and explain why. If the facts change after an election or news event, suggest a new option so others can vote it up.
A
Stationary
No member explanations yet for this option.
B
Moving
No member explanations yet for this option.
C
Moving slowly
No member explanations yet for this option.
D
Moving fast
No member explanations yet for this option.
Explanation
A chimney draws air upward most effectively when the outside air moving across its top is fast, since (by Bernoulli's principle) this creates a region of lower pressure that enhances the upward draft.
Related Questions
Q
The waves which are used for line of sight (LOS) communication are called:
Medium
· Physics
Q
A potential difference is applied across the ends of a wire. If the potential di...
Medium
· Physics
Q
Relation between linear velocity and angular velocity:
Medium
· Physics
Q
If the axis of rotation passes through the body and the body moves around itself...
Medium
· Physics