4th Steam Practice Test

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The cooling tower design that relies on fans to move air is known as what type of draft?

Mechanical draft

Air movement through a cooling tower can be natural or mechanical. When fans move the air, that is mechanical draft. The fans can either push air into the tower (forced draft) or pull air through it (induced draft). Since this design relies on fans to move the air, the correct term is mechanical draft.

Natural draft

Forced draft

Induced draft

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