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Which of the following statements regarding the design of cooling tanks is correct? ( ) A. When discharging wastewater intermittently, the effective volume should be calculated based on the sum of the maximum daily discharge volume and the required amount of cooling water. B. In cases of secondary evaporation, the inlet pipe for high-temperature wastewater should be submerged at a depth of more than 200 mm below the water surface. C. Silencing devices should be installed at the inlet for pressurized high-temperature wastewater. D. The outlet of the siphon drainage pipe should be located at the top of the tank. Answer: C. Option A does not comply with the provisions of Article 4.8.3, Paragraph 3, Sub-item 1 of the current “Code for Design of Building Water Supply and Drainage Systems”. When discharging wastewater intermittently, the effective volume should be calculated based on the sum of the maximum single discharge volume and the required amount of cold water. Option B does not comply with the provisions of Sub-clause 1, Paragraph 4, Article 4.8.3 of the current Code for Design of Building Water Supply and Drainage. In the case of secondary evaporation, the inlet for high-temperature wastewater should be above the water surface. Option C complies with the provisions of Sub-clause 1, Paragraph 4, Article 4.8.3 of the current Code for Design of Building Water Supply and Drainage. Option D does not comply with the provisions of Sub-clause 3, Paragraph 4, Article 4.8.3 of the current \"Code for Design of Building Water Supply and Drainage\". The outlet of the siphon drainage pipe should be located at the bottom of the tank.