13春学期《土木工程施工(二)》在线作业3(国外英语资料).docVIP

13春学期《土木工程施工(二)》在线作业3(国外英语资料) Northeastern University, 14 spring, 13 autumn, 13 spring semester, civil engineering Northeastern University, 14 spring, 13 autumn, 13 spring semester, civil engineering construction (two), online homework, 3 Total score: 100 test time: - Radio examination Radio examination questions (20 questions, 100 points) 1.. In the following description of the drawing rule of the double code network diagram, what is correct is that. A. allows nodes to be of the same number B. allows multiple start points C. allows logical loops to appear D. allows only one endpoint Full marks: 5 2., the construction of cast-in-place arch bridge, the design of arch axis and construction arch axis relationship is. The arch axis of A. construction is equal to the design Arch Axis The arch axis of B. construction is lower than the design Arch Axis The arch axis of C. construction is higher than the design Arch Axis D. construction of arch axis should be designed on the basis of arch axis, considering the type of support, after loading a comprehensive determination of arch Full marks: 5 3. the internal vibrator shall be arranged in row or staggered arrangement, and the spacing between the insertion points shall be the radius of the vibrators action. A. 0.9 - 1.1 times B. 1.2 - 1.5 times C. 1.4 - 1.5 times D. 1.5 - 1.8 times Full marks: 5 4. single thick bar tension anchorage. A. screw end rod anchor B. pier head anchorage C. JM type anchorage D. steel cone anchorage Full marks: 5 5. concrete maintenance during which. Watering times. A., 6 - 8 hours B., 4 - 6 hours C. water 4 to 6 hours during the day and 6 to 8 hours at night D. according to climatic conditions, to ensure that the concrete moist Full marks: 5 6. which of the following requirements regarding the construction segment is not correct?. The boundaries of the A. construction section shall be as close as possible to the structural boundaries of the construction object The amount of labor consumed in each con