【Daily Topic】【HVAC Version 20160907】

2016-09-07View Original

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This post was last edited by hesonchang214 on 2016-11-9 at 15:47. Reward for participation: 2 Wealth. Reward for the correct answer: 9 Wealth. The main harmful substances that need to be controlled in ventilation systems are ( ). A. Harmful gases, harmful dusts, excess heat, and excess moisture. B. Harmful gases, dusts, excess heat, and excess moisture. C. Harmful gases, dusts, high temperatures, and high humidity. D. Gases, dusts, excess heat, and excess moisture. Correct answer: B

Reply #22016-09-07

C: Harmful gases, dust, high temperatures, high humidity.

Reply #32016-09-07

B: Harmful gases, dust, waste heat, excess moisture

Reply #42016-09-07

B: Harmful gases, dust, waste heat, excess moisture

Reply #52016-09-07

B、、、、、、、、、、、、、

Reply #62016-09-07

A: Harmful gases, harmful dusts, waste heat, excess moisture

Reply #72016-09-07

B: Harmful gases, dust, waste heat, excess moisture

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【Daily Topic】【HVAC Version 20160907】

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