【Daily Topic】【HVAC Version 20151228】
Thread Content
This post was last edited by hjztbwg on 2016-1-4 09:27. Reward for participation: 2 wealth points. Reward for correct answer: 9 Wealth. A climate compensator adjusts the heating supply from the thermal station in response to changes in outdoor temperature. In a certain city’s heating network, a constant flow rate is used for operation; when the outdoor temperature is higher than the designed value, which of the following statements regarding the changes in the supply and return water temperatures, as well as the temperature difference between them, do not conform to the established patterns? The correct answers are AC: (A) The supply water temperature drops, the return water temperature drops, and the temperature difference between supply and return water remains unchanged; (B) The supply water temperature drops, the return water temperature remains unchanged, and the temperature difference between supply and return water decreases; (C) The supply water temperature remains unchanged, the return water temperature drops, and the temperature difference between supply and return water decreases; (D) Both the supply water temperature and the return water temperature drop, resulting in a decrease in the temperature difference between them
In the AC questions, the text description for BD is the same
A climate compensator adjusts the heating supply from the thermal station in response to changes in outdoor temperature. A certain urban heat network operates on a constant flow basis; when the outdoor temperature is higher than the designed value, which of the following variations in the supply and return water temperatures of the heat network, as well as in the temperature difference between them, do not follow a consistent pattern? A.C: (A) Supply water temperature decreases, return water temperature decreases, temperature difference between supply and return water remains unchanged; (B) Supply water temperature decreases, return water temperature decreases, temperature difference between supply and return water decreases; (C) Supply water temperature remains unchanged, return water temperature decreases, temperature difference between supply and return water decreases; (D) Supply water temperature decreases, return water temperature decreases, temperature difference between supply and return water decreases
A, C,---------------------
A climate compensator adjusts the heating supply from the thermal station in response to changes in outdoor temperature. A certain urban heat network operates on a constant flow basis; when the outdoor temperature is higher than the designed value, which of the following variations in the supply and return water temperatures of the heat network, as well as in the temperature difference between them, do not follow a consistent pattern? (A) Supply water temperature decreases, return water temperature decreases, temperature difference between supply and return water remains unchanged. (B) Supply water temperature decreases, return water temperature decreases, temperature difference between supply and return water decreases. (C) Supply water temperature remains unchanged, return water temperature decreases, temperature difference between supply and return water decreases. (D) Supply water temperature decreases, return water temperature decreases, temperature difference between supply and return water decreases
A climate compensator adjusts the heating supply from the thermal station in response to changes in outdoor temperature. A certain urban heat network operates on a constant flow basis; when the outdoor temperature is higher than the designed value, which of the following variations in the supply and return water temperatures of the heat network, as well as in the temperature difference between them, do not follow a consistent pattern? (A) Supply water temperature decreases, return water temperature decreases, temperature difference between supply and return water remains unchanged
The compensator is used to adjust the heating supply at the thermal station in response to changes in outdoor temperature. A certain urban heating network operates on a constant-flow basis; when the outdoor temperature is higher than the designed value, which of the following variations in the supply and return water temperatures, as well as the temperature difference between them, do not follow a consistent pattern? (A C) (A) Supply water temperature decreases, return water temperature decreases, temperature difference between supply and return water remains unchanged. (B) Supply water temperature decreases, return water temperature remains unchanged, temperature difference between supply and return water decreases. (C) Supply water temperature remains unchanged, return water temperature decreases, temperature difference between supply and return water decreases. (D) Supply water temperature decreases, return water temperature decreases, temperature difference between supply and return water decreases