【Daily Question】Issue 20150906 Test
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This post was last edited by xuexmxj on 2015-9-16 08:50. Reward for participation: 2 wealth points. Reward for correct answer: 9 wealth. For a hot water boiler room that uses natural gas as fuel, which of the following options represent the correct design ventilation rates for its emergency ventilation system and normal ventilation system? (A) 6 times/hour during emergencies and 10 times/hour under normal conditions; (B) 12 times/hour during emergencies and 6 times/hour under normal conditions; (C) 10 times/hour during emergencies and 6 times/hour under normal conditions; (D) 12 times/hour during emergencies and 9 times/hour under normal conditions. The correct answers are BD
For a hot water boiler room that uses natural gas as fuel, which of the following options represent the correct design ventilation rates for its emergency ventilation system and normal ventilation system? (B D)
For a hot water boiler room that uses natural gas as fuel, which of the following options represent the correct design ventilation rates for its emergency ventilation system and normal ventilation system? Answer: (B) 12 times/h during emergencies and 6 times/h under normal conditions; (D) 12 times/h during emergencies and 9 times/h under normal conditions
B) 12 times/h during emergency ventilation and 6 times/h under normal conditions (D) 12 times/h during emergency ventilation and 9 times/h under normal conditions
(B) 12 times/h for emergency ventilation and 6 times/h for normal ventilation
B, C, D. -------------------------------------------------------
The correct answers should be BD.
I’m a newcomer; I think option A is the correct one. It’s just my opinion – if it’s wrong, at least I’ve tried
For a hot water boiler room that uses natural gas as fuel, which of the following options represent the correct design ventilation rates for its emergency ventilation system and normal ventilation system? (A) 6 times/h during emergency ventilation and 10 times/h under normal conditions; (B) 12 times/h during emergency ventilation and 6 times/h under normal conditions; (C) 10 times/h during emergency ventilation and 6 times/h under normal conditions; (D) 12 times/h during emergency ventilation and 9 times/h under normal conditions. Answer: CD. Analysis: According to clause 15.3.7 of the Boiler Code, when boilers are located on the ground floor or in a semi-basement, gas boilers should be ventilated at least 6 times/h under normal conditions and at least 12 times/h during emergencies ； When installed in a basement, the rate should be no less than 12 times/hour, both under normal conditions and in case of an accident. Therefore, the answer is CD. Article 10.3.17 of the Code for Fire Protection Design of Buildings and Article 4.1.2.9 of the High-Rise Building Code stipulate that the normal ventilation rate for gas boiler rooms shall be not less than 6 times per hour ； The emergency ventilation rate shall be not less than 12 times per hour.
For a hot water boiler room that uses natural gas as fuel, which of the following options represent the correct design ventilation rates for its emergency ventilation system and normal ventilation system? (A) 6 times/h during emergencies and 10 times/h under normal conditions; (B) 12 times/h during emergencies and 6 times/h under normal conditions; (C) 10 times/h during emergencies and 6 times/h under normal conditions; (D) 12 times/h during emergencies and 9 times/h under normal conditions. B
According to clause 15.3.7 of the Boiler Code: when boilers are installed on the ground floor or in a semi-basement, gas boilers shall require ventilation at a rate of not less than 6 times per hour under normal conditions, and not less than 12 times per hour in emergency situations; therefore, BD should be selected