When the linoleum is paved parallel to the ridge, the lap joint of the short side should not be less than 100mm, The lap of the long side shall not be less than: () (2 points; answer: C) a:50mmb:60mmc:70mmd:100mm24.
According to the regulations, for beams with a span of more than 8 meters, the formwork can be removed only after the strength of the test block cured under the same conditions as the structure reaches (a) the standard value of the design strength (2 points; answer: a) a:100% b:50% c:75% d:30% 27.
The main quality control indicators of friction pile type precast piles during pile sinking are (2 points; answer: b) a: final penetration b: design elevation c: verticality d: plane position 17.
The length of inclined tenon should not be less than (2 points) of its height; answer: C) a:1/2b:1/3c:2/3d:1.5 times 20.
Mortar shall be used with it.
Pour underwater concrete with conduit.
10.
In earthwork, for large-area site leveling For excavation of large foundation pit, filling of embankment and subgrade, the earth moving machinery that should be selected first is a: single bucket excavator b: bulldozer c: scraper d: multi bucket excavator 11.
there is no noise and vibration during construction, and there is little interference to the surrounding environment, Suitable for urban construction is () (2 points; answer: D) a: Hammer Sinking Pile b: vibration sinking pile c: water jetting sinking pile d: static pile pressing 15.
During prestressed concrete construction, There is no need for pedestal equipment, and there is no need to reserve holes and grout.
(2 points; answer: b) a: project overview b: construction scheme c: construction plan d: construction schedule 2.
Civil engineering construction I.
mixing low flow concrete, Select (2 points; answer: C) a: manual mixing b: self dropping mixer c: forced mixer 3.
the improper position of the column construction joint is () (2 points; answer: b) a: the top of the foundation b: the place flush with the crane beam c: the upper part of the crane beam d: the lower part of the beam 4.
Masonry brick walls should have a certain way of building, Because (2 points; answer: C) a: reduce the number of brick cutting b: ensure the beauty of the wall c: ensure the overall stability of the wall d: convenient construction 8.
B: the higher the steel reinforcement grade, the longer the lap length should be.
The following items, () are the core of the construction organization design of unit projects.
The correction of the elevation of the reinforced concrete column of the single-layer industrial plant is completed at (2 points; answer: a) a: cup bottom leveling b: cup top line c: column body installation alignment d: base leveling 28.
When the precast pile is hoisted, the concrete strength should reach () (2 points) of the design strength grade; answer: C) a:50% b:60% c:70% d: 100% 12.
C: the higher the reinforcement grade, the shorter the lap length can be.
A: 2b:3c:4d:526.
The waterproof concrete shall be naturally cured, and its curing time shall not be less than: () (2 points; answer: C) a:7db:10dc:14dd:21d25.
At normal temperature, the cement mixed mortar must be used within () hours after mixing.
The plumpness of the horizontal mortar joint of the brick masonry should not be less than (2 points; answer: C) a:75% b:90% c:80% d:100% 13.
When the brick masonry is left with a straight tenon, it must be made into (2 points; answer: C) a: male tenon b: female tenon c: convex tenon d: concave tenon 22.
waterproof concrete should be naturally cured, and its curing time should not be less than: () (2 points; answer: C) a:7db:10dc:14dd:21d19.
The vertical deviation of the precast pile should be controlled within () (2 points; answer: a) a: within 1%, B: within 3%, C: within 2%, D: within 1.5% 5.
The method is () a: unbonded post tensioning method b: post tensioning method c: pre tensioning method d: electric heating method 18.
In the field construction, the connection of the vertical reinforcement of the column should be preferred (2 points; answer: C) a: flash butt welding b: binding connection c: electroslag pressure welding d: electric arc welding 23.
When the flow rhythm is 2, 4 and 8 days respectively, If the flow construction period is required to be the shortest, it should be organized into (2 points; answer: C) a: fixed tempo flow b: separate flow c: multiple tempo flow d: linear flow 14.
D: it has nothing to do with the reinforcement diameter.
the establishment and transmission of post tensioned prestress depends on anchors (2 points; answer: a) a: anchors b: tensioning machinery c: clamps d: jacks 16.
In a certain flow construction process, the construction section m=4, the construction process n=6, If the construction layer r=3, the number of running water steps is () a:6b:5c:4d:329.
When pouring concrete for wall columns, the height of free fall is required (2 points; answer: b) a: not more than 4MB Not more than 3mb: not more than 2Md, not more than 60cm21.
When tensioning the prestressed reinforcement, The stress of the pre reinforcement should be made (2 points; answer: a) a: less than the yield strength b: equal to the yield strength of the pre reinforcement before tensioning c: greater than the yield strength of the pre reinforcement before tensioning d: close to the tensile strength 6.
single choice question 1.
The lap length of the binding joint of tensile reinforcement (2 points; answer: b) a: it has nothing to do with the reinforcement grade.
The works that are not suitable for winter construction are (2 points; answer: b) a: earthwork b: decoration and waterproof works c: concrete structure works d: masonry works 7.
The earthwork volume of a foundation pit excavation is V1, the volume of the foundation in the pit is V2, and the initial and final loosening coefficients of the soil are KS and K’s respectively.
Then the outward transportation volume of the excess earthwork after the backfilling soil is left in the foundation pit is (2 points; answer: D) a: (V1-V2) ksb: (V1-V2) KS / K ‘SC: v1ks v2ks / K’ sd:[v1- (V1-V2) /k ‘s]ks9.
In order to prevent its diffusion and segregation, water and mud, and easy to self flow and compact, add (a) admixture..
