大工13春《土木工程概论》在线测试3(国外英文资料).doc

大工13春《土木工程概论》在线测试3(国外英文资料) 13 spring introduction to civil engineering online test 3 1. At room temperature, using the appropriate materials cover concrete, wet, dry wind prevention, heat preservation and take water anti-freezing measures such as conducted by the maintenance is (). A. hot curing Standard curing C. cold curing Natural curing 4 points: 4 According to soil (), soil can be divided into water and water. Apparent density The water absorption of B. Coefficient of penetration Relative density 4 points: 4 The following is a statement about the double codename network graph, and the error is (). A. arrow is for work Usually the work name is written on the top (or left) of the arrow. C. write the duration of the work under the arrow (or on the right) D. In the network diagram, a connection with a double arrow is allowed 4 points: 4 The vertical slope of the unsupported structure is not more than () in the solid and medium-thick sand and gravel soil. A. 1.00 B. 1.25 C. 1.50 D. 2.00 A full score: 4 The height is 5m, the horizontal projection width is 3m, and the slope coefficient of the slope is (). A. 0.6 B. 1.67 C. 0.8 D. 1.25 A full score: 4 The concrete shall be cast before (before) from the stirring site to the pouring site. A. the false setting B. initial setting C. final set D. hardening 4 points: 4 In the classification of soil engineering, the solidity coefficient is 0.5 ~ 0.6, which is also called (). A. the soft soil B. common soil C. hard soil D. the gravel A full score: 4 The ratio of concrete to the quality of various materials, or the proportion of materials used in concrete. A. per liter B. a tonne Per cubic meter D. can 4 points: 4 The following statement on the pile foundation is wrong (). A. load capacity The aseismic performance is good Small settlement D. Is a shallow foundation 4 points: 4 In the following network plan, it is () that the time expression of the network plan is divided into (). A. unit engineering network plan B. the control