【Daily Question】Issue 20150923 Test
Thread Content
This post was last edited by hjztbwg on 2015-9-24 09:31. Reward for participation: 2 wealth points. Reward for correct answer: 9 Wealth. The air conditioning and ventilation ducts in a certain building are made of steel; which of the following regulations should be followed for their installation? Answers: ABD. A. Before installing pipes and pipe supports, any dirt and rust on their inner and outer surfaces must be removed. B. For pipe bends, the bending radius should be no less than 3.5 times the outer diameter of the pipe for hot bending, and no less than 4 times for cold bending. C. The slope of condensate drainage pipes should be 7‰ or greater. D. Insulating padding should be used between cold and hot water pipes and their supports and hangers
Participation reward: 2 Wealth. Reward for correct answer: 9 Wealth. The air conditioning and ventilation ducts in a certain building are made of steel; which of the following regulations should be followed for their installation? ABCD A. Before installing pipes and pipe racks, any dirt and rust on their inner and outer surfaces must be removed thoroughly. B. For pipe bends, the bending radius should be no less than 3.5 times the outer diameter of the pipe in the case of hot bending, and no less than 4 times in the case of cold bending. C. The slope of condensate drainage pipes should be 7‰ or greater. D. Insulating padding should be used between cold and hot water pipes and their supports and hangers
The air conditioning and ventilation ducts in a certain building are made of steel; which of the following regulations must be followed for their installation? A B D
A, B, D-----------------------------
All four options, ABCD, are correct, right?
The air conditioning and ventilation ducts in a certain building are made of steel; which of the following regulations must be followed for their installation? A, B, C, D
The air conditioning and ventilation ducts in a certain building are made of steel; which of the following regulations must be followed for their installation? ABCD
The air conditioning and ventilation ducts in a certain building are made of steel; which of the following regulations must be followed for their installation? A. Before installing pipes and pipe supports in ABD A., it is necessary to remove any dirt and rust from their inner and outer surfaces. B. For pipe bends, the bending radius should be at least 3.5 times the outer diameter of the pipe for hot bending, and at least 4 times that diameter for cold bending. C. The slope of condensate drainage pipes should be 7‰ or greater (incorrect); rather, it must comply with the specifications outlined in the design documents. If no specific requirements are given in the design, the slope should still be 8/%% or greater. The length of flexible connections should not exceed 150 millimeters. D. Insulating gaskets should be provided between cold and hot water pipes and their supports and hangers
A. Before installing pipes and pipe racks, the dirt and rust on their inner and outer surfaces must be removed thoroughly. B. For pipe bends, the bending radius should be no less than 3.5 times the outer diameter of the pipe in the case of hot bending, and no less than 4 times in the case of cold bending. D. Insulating pads should be used between cold and hot water pipes and their supports and hangers