Question

145. What is the advantage of reversing the flow of air in an air cleaner ?
{a) The velocity of air is increased.
(b) The velocity of air is reduced
(c) The air flow is increased.
(d) A large percentage of foreign matter is thrown out.​

Answer 1

B is the correct option





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Answer 2

Answer:

In an air cleaner, the advantage of reversing the flow of air is the velocity of air is reduced. Option (b) is correct.

Explanation:

• To filter the air in the home we use an air cleaner.
• The contaminants from the air are removed and the air quality is increased.

In an air cleaner, when the velocity of air is reduced, the particles in the air are easily removed. The purification of air is done in a better way when the air's velocity is reduced. When the air's velocity is reduced, the solid particles in the air are absorbed more easily and the filtration is done.

So, in an air cleaner, the advantage of reversing the flow of air is the velocity of air is reduced.

Option (b) is correct.