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1、西交路基路面工程在线作业（West to pay subgrade and pavement engineering online homework）West to pay subgrade and pavement engineering online homeworkTotal score: 100 test time: -Radio examinationA multiple-choice questionJudgment questionRadio examination questions (25 questions, 50 points)1., the classification
2、 of asphalt mixture stone belongs to coarse grained asphalt mixture index is ()A. composition structureB. mineral aggregate gradationMaximum particle size of C. oreD. mineral aggregate minimum particle sizeFull marks: 22. CBR is an indicator of subgrade and pavement materialsA. stiffnessB. durabilit
3、yC. carrying capacityD. roughnessFull marks: 23. belong to the pavement structure performance requirements is ()A. strengthB. stiffnessC. durabilityD. flatnessFull marks: 24. about the static effect of vehicle on road surface, the following statement is incorrectA. vertical static depends on wheel w
4、eight, wheel pressure, and tire propertiesB. contact pressure distribution is evenThe contact area of C. is approximately ellipseD. design is considered as single or double circle drawing, called equivalent circleFull marks: 25., the following statement is not true about the dynamic effects of vehic
5、le on road surfaceA. vehicle; dynamic load; size; Cheng Zhengtai distributionThe coefficient of variation of B. dynamic load is related to vehicle speed, flatness and vehicle damping performanceThe loading time of C. pavement is shortThe dynamic load factor is not considered in the design of D. flex
6、ible pavementFull marks: 26. the maximum slab length of cement concrete pavement shall be no more than (m) metersA. 4.5B. 5C. 6D. 8Full marks: 27. cement stabilized base, the main technical requirements of cement is ()A. has a longer final setting timeB. has higher strength levelsC. has higher compr
7、essive strengthD. has higher flexural strengthFull marks: 28. fill height is less than how many meters, be called low embankment ()A. 1 to 1.5 metersB. 23 metersC. 45 metersD. 58 metersFull marks: 29., the following content does not belong to the concept of SubgradeThe A. is dug into the ground acco
8、rding to line shape to form a certain section shapeB. bears vehicle loads against environmental factorsC. provides good driving conditionsD. earth rock structureFull marks: 210. the standard axle load model considered in the code of highway pavement design is () and the axle load is () KNA. single a
9、xle single wheel, 100B. single axle double wheel, 100C. single axle single wheel, 80D. single axle double wheel, 80Full marks: 211. when calculating the load stress of cement concrete pavement, the comprehensive influence coefficient is consideredA. dynamic loadB. overloadC. bias loadingD. fatigueFu
10、ll marks: 212. the larger the water content is, the more suitable compacting machine isA. vibratory rollerB. small vibratory rammerC. convex block vibratory rollerD. tire rollerFull marks: 213., the asphalt mixture composed of continuously graded mineral aggregate is ()A. dense suspension structureB
11、. skeleton void structureC. compact skeleton structureD. continuous grading structureFull marks: 214., the specific method of Highway Natural Zoning in our country is divided into (first) District, (two) district and (sub) district.A. 7, 19, 33B. 7, 33, 19C. 7, 19, 52D. 7, 33, 52Full marks: 215. it
12、is not necessary to consider the value of the accumulated equivalent shaft during the service life of Asphalt PavementA. service lifeB. road levelC. traffic growth rateD. Lane factorFull marks: 216. when calculating the stability of immersion subgrade, the change of the stress system is not included
13、A. C, for reducing immersionB. partially flooded subgrade soil is subjected to water buoyancy actionC. produces osmotic water pressureD. load equivalent height increasedFull marks: 217., in order to ensure the good performance of the pavement, the requirements of the road () smooth () smoothA., yes,
14、 againB. should and shouldC. should and should notD. should not, and should notFull marks: 218., accustomed to become the two lime soil grassroots, is ()A. cement ash stabilized classB. stabilized lime mud classC. cement lime stabilized classD. lime industrial waste stabilization classFull marks: 21
15、9. the content of the actual service capacity rating process does not involve the followingA. scoring groupB. uses visual subjective assessmentC. 5 point scoringD. is calculated according to roughness, rutting depth, damage and repair area ratioFull marks: 220. when calculating the force system of a
16、 submerged retaining wall, consider the increase of the three force as ()A. dynamic water pressure, hydrostatic pressure and buoyancyB. dynamic water pressure, hydrostatic pressure and immersion earth pressureC. dynamic water pressure, hydrostatic pressure and additional horizontal forceD. hydrodyna
17、mic pressure, hydrostatic pressure and passive earth pressureFull marks: 221., in order to make the asphalt surface and the non asphalt material base combination is good, the asphalt layer sprinkled on the base is called ()A. coatingB. adhesive layerC. sealD. binding layerFull marks: 222. the subgra
18、de soil bearing capacity index, the Chinese Kerr foundation model describes the subgrade working stateA. resilient modulusCoefficient of reaction of B. SubgradeC. CBR valueD. shear strengthFull marks: 2The 23. () determine the catchment flow in a basin within the scope of the design flow is also cal
19、ledA. hydraulic computationB. hydrological computationC. look-up tableCalculation of optimum hydraulic section method of D.Full marks: 224., the best way to treat the soft soil foundation is 23mA. plastic drainage plateB. powder injection pileC. replacement fillD. light subgrade fillingFull marks: 2
20、25. drainage ditch should have a suitable longitudinal slope to keep the water flowing, but under normal circumstances, the vertical slope should not be greater than ()%A. 0.3B. 1C. 3D. 5Full marks: 2West to pay subgrade and pavement engineering online homeworkTotal score: 100 test time: -Radio exam
21、inationA multiple-choice questionJudgment question, (a total of 20 multiple-choice questions, a total of 40 points.)1., the advantage of paving the cement concrete surface is ()A. equipment investment is lowB. is of high qualityC. construction schedule is fastD. rail template installation, labor int
22、ensityE. can reverse the road again and againFull marks: 22. indirect protection measures for Subgrade Scour are ()A. plant protectionB. riprap protectionC. construction of spur dikes and longitudinal damD. regulation of river courseE. set submerged retaining wallFull marks: 23. to determine whether
23、 the cross section size of subgrade drains is reasonable, and to meet ()A. over water flow is greater than design flowB. over water flow is less than design flowC. water flow velocity is less than the non flow velocityD. over water velocity is less than non silting velocityE. over water velocity is
24、greater than non silting velocityFull marks: 24. the advantages of light retaining walls relative to gravity retaining walls are ()A. construction is simpleB. wall section is smallA small amount of masonry C.D. covers lessFull marks: 25. according to () factors, determine the single lane accumulativ
25、e standard traffic volume (axle times)A. annual growth rate of trafficB. road levelC. service lifeD. traffic volume (axle load) conversion factorE. load; transverse lane; distribution factorFull marks: 26. the requirements for the subgrade generally do not include ()A. enough strengthB. water temper
26、ature stabilitySurface roughness of C.D. dust lessE. overall stabilityFull marks: 27., in the bridge, the river bank by seasonal or long-term immersion roadbed, when () in case of stability is unfavorableA. rising water levelsB. water level dropsC. exists water level differenceD. subgrade packing pe
27、rvious to waterE. subgrade packing is impervious to waterFull marks: 28., the cold mix cold paving method can be used in the construction of the asphalt pavementA. asphalt surface treatmentB. asphalt penetrationC. emulsified asphalt macadam mixtureD. medium grained bituminous concreteE. fine grained
28、 asphalt concreteFull marks: 29. stone retaining walls are usually made up of ()A. wall bodyB. FoundationC. drainage facilitiesD. expansion jointFull marks: 210. the major damage considered in the design criteria for asphalt pavements is ()A. settlementB. ruttingC. fatigue crackingD. lapseE. shrinka
29、ge crackingFull marks: 211., the natural factors that affect the stability of subgrade and pavement areA. geographical factorsB. climate factorsC. load factorD. geological factorsE. construction factorsFull marks: 2There are 12. sewer ()A. stone ditchB. pipe ditchC. type drain holeD. flat ditchFull
30、marks: 213. the ancillary facilities of the subgrade are ()A. bermB. breakerC. soil pit and abandoned pitD. wrong laneFull marks: 214. the following conditions are related to road roughnessA. produces shock and vibrationB. accumulated precipitationC. increases traffic resistanceD. adhesion decreased
31、 with frictionE. causes skiddingFull marks: 215., the road surface is divided into several layers according to the function of the horizon, respectivelyA. surface layerB. baseC. cushionD. drainageFull marks: 216., the design indexes of new asphalt pavement of high-grade highway are as followsA. over
32、all rebound deflectionB. asphalt mixture structure layer bottom tensile stressBottom tensile stress of C. semi-rigid base courseD. surface shear stressBottom tensile stress of E. Macadam Base CourseFull marks: 2SeventeenThe impact coefficient of vehicles is mainly related to those factorsA. running
33、speedB. Pavement EvennessVibration characteristics of C. vehiclesD. truck loadFull marks: 218. the advantages of cement concrete pavement are compared with that of Asphalt PavementA. high strengthB. has good stabilityC. noise is smallD. repair is easyFull marks: 219. classify the road surface from t
34、he mechanical characteristics and design methods of the pavementA. flexible pavementB. rigid pavementC. semi-rigid pavementD. semi flexible pavementFull marks: 220. the main functions of the subgrade include ()Throughout the full range of A., connecting bridgeB. bears the effects of vehicle loading
35、and environmental factorsC. offers all-weather driving conditionsD. forms the main body of the roadE. provides fast, safe, economical and smooth driving qualityFull marks: 2West to pay subgrade and pavement engineering online homeworkTotal score: 100 test time: -Radio examinationA multiple-choice qu
36、estionJudgment questionJudgment questions (a total of 5 questions, a total of 10 points)1., the high temperature stability evaluation index of hot mix asphalt is whether the residual stability of Marshall meets the specification requirementsA. errorB. correctFull marks: 22., the purpose of adding ce
37、ment in the two ash macadam base mixture is to improve the early strength of the two ash macadam mixtureA. errorB. correctFull marks: 23. the design value of asphalt pavement deflection refers to the pavement in the end of the use of adverse season, the road may not exceed the rebound deflection val
38、ueA. errorB. correctFull marks: 24. the mixing effect of asphalt concrete continuous mixing plant is better than that of the continuous mixing plantA. errorB. correctFull marks: 25., according to the line in the ground dug into a certain section shape, does not belong to the concept of roadA. errorB. correctFull marks: 2This article reprinted from the free operating answer Download Network www.Vu80. com more full marks free answer