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1、安全员 C 证考试试题(Safety officer C test question)Jiangsu construction safety officer C certificate testSingle topic selection:1. If the wetland area is excavated, it can be excavated for artificial precipitation when it is lowered to the bottom of the pit (0. 5 to 1. 0 meters).When digging in the expansiv
2、e soil area, do a good job (drainage) before excavation.3. When the reinforced concrete filling pile is used, the excavation standard is the pile body concrete (after the design strength).4. When the earthwork is excavated manually, the operation spacing of the two should be kept (1 m).5. The shield
3、 structure should test the concentration of combustible gas every day, to predict the prevention and control work, and to do well (to record the account).6. The drainage ditch and the collecting well should be set in (beyond the base range).7. The rectifying jack in the tool tube should be insulated
4、 well, and the operation of electric high pressure oil pump should be (wear insulating gloves).8. The excavated vehicles should be guided, strictlyprohibited.9. The top of the top tube shall exceed (50 m) to prevent hypoxia and suffocation.10. Construction of the top tube. The oxygen and the acetyle
5、ne cylinder (must not enter the pit).11. The 1ighting telecommunication system in the pipeline is generally used (low voltage).The supporting installation must be carried out in the order of the (slotting support).13. The removal of support shall be constructed in the order of (after being replaced)
6、.The base point should not be less than (2).The template and its stents must be set in the installation process (the temporary fixtures that can effectively prevent capsizing).16. The minimum height of the operating platform for the template installation must be (2. 0 m).17. Set horizontal scissor s
7、upport when the bracket is higher than (4. 0 meters).18. During the operation of the suspended part, the operator should (fasten the seat belt).The minimum distance of a template in the foundation pit is outside (2. 0 m).20. The inclined support and side form Angle should not be less than 45 )(21. T
8、he number of rope clamps shall not be less than (3) at the end of the wire rope.22. It is easy to check and prevent accidents before the wire rope has the foreboding, such as broken wire and broken stock, before breaking.23. Bending fatigue is one of the main reasons for the failure of wire rope.24.
9、 The diameter of lifting chain of hand-pulled calabash is more than (10%).The lifting mast is a pillar, and the rope is taut to the ground. Tighten one end to the top of the lifting mast and the other end to the ground anchor. The lasso is generally not less than (4) roots.26. When lifting equipment
10、, the coiled coil should be no less than (3) ring on the winding drum of electric hoist.In the lifting operation, the anchor shall be fixed in addition to the pulley.28. Anchor dragging rope and horizontal Angle is below (3029. The diameter of the pulley is usually not less than the diameter of the
11、wire rope (16).More than 70 percent of car crane accidents are caused by overloading or falling of a leg, so special attention should be given to the use of a crane.31. The legs of the car crane must be solid. Before lifting heavy weights, the legs should be strengthened to see if there is any subsi
12、dence, and sometimes to ensure safe use, the timber will be added.Its purpose (increase the pressure area).In the lifting operation, the incline is buried or set on the ground.33. In signing construction contracts, the construction unit and construction unit of the demolition project shall sign the
13、agreement (safety production management) to define the responsibilities of the two parties.34. The scaffold and safety net for the removal of the construction shall be set up by the (professional) and shall be used only after the acceptance of the relevant personnel.35. Construction is strictly proh
14、ibited in the construction of three-dimensional (cross) operation. When horizontal operation, there is a certain safe distance between each workspecies.36. After the excavator operation is over, it shall be parked in (firm, flat ground).37. The excavator is in a dragline or backhoe operation. The di
15、stance from the working face should be greater than (1 m).38. When two or more excavators work in the same area, the distance should be greater than 8 meters and the left and right distance should be greater than (1. 5 m).39. No bulldozer (lime) is allowed.40. When parallel operation of two shovels,
16、 the spacing shall not be less than (2m).41. The driver of the installation site should smooth and solid, when the compressive stress of foundation bearing capacity can not meet the prescribed, shall be under the track laying foundations box or 30 mm thick steel plate the spacing shall not be greate
17、r than nim (100).42. When the pile driver is working, the non-staff should leave the machine (10 meters) away from the crane.43. During the test of the hammer, the operator must be monitored outside the hammer center (5m).44. The plug-in vibrator should (cut off the power) during handling.45. When m
18、oving the welder, it should be cut off (power supply).The following statement about the main function of the lifting torque limiter is correct, (prevent the tower from being overloaded.)47. The dismantling of the tower crane must be carried out during the day.48. (torque limiter) can prevent the tow
19、er from overloading, avoid the collapse of the tower or the broken arm and other malignant accidents due to severe overload.49. When the tower crane works, the wind speed should be lower than (6).50. Which of the following safety devices is a safety device designed to prevent the operation of a car
20、from exceeding the maximum or minimum range? (amplitude 1imiter)51. The anemometer should be installed at the top of the crane to the hoisting device (the highest position is not in the wind)52. (steel wire rope anti-stripping device) can prevent the wire rope from being removed from the pulley groo
21、ve during the transmission, causing the wire rope card to die or damage.53. (hook insurance) is a safety device to prevent the hoisting of wire rope from lifting wire rope due to excessive Angle or hook.54. When the wind force is above (level 4), it is not allowed to carry out the top lift of the to
22、wer.55. The top lift operation of the tower must be in balance with the balance arm.56. The fixed spacing of the inner climbing tower should not be less than (3) floors.57. The net height of the hoisting cage shall not be less than (2 meters).58. Connection of the construction lift (chassis) with th
23、e foundation.The material lifting machine is attached to the frame and the construction connection.60. The following statement on the use of the material elevator is correct (only for the delivery of materials, not manned).61. The foundation of material lifting machine is concreting c20 concrete.Thi
24、ckness should not be less than (300 mm).62. After the maximum working length of the hoisting rope is released, the wire rope on the drum is retained at least (3 laps).63. During the multi-tower operation, the vertical distance of the high tower (lifting hook to the highest point) and the low tower c
25、an not be less than (1. 5 meters) in any case.64. Drainage ditches are not allowed within the base of the material elevator (5 meters).65. In any of the fol lowing situations, the hook should be scrapped (the hanging rope is more than 10 percent of the original height).66. The scaffolding main node
26、must be set another one (small bar), horizontal level with a right-angle fastener clasp, and it is forbidden to dismantle, just because (lateral horizontal rod is one of the important force component under vertical load, and ensure the overal1 stiffness of scaffold indispensable bar).67. The scaffol
27、d of scaffold board laid for homework layer (should be covered, stability, from the metope is not more than 120-150 mm).68. The lower part of the scaffold shall not be greater than (2 m).69. The structure of a double row scaffold with a height of 24 meters or more is required to be constructed (rigi
28、d connecting walls must be connected to buildings).70. The width of the shears (should not be less than 4 span and should not be less than 6 m).71. The bracing diagonal Angle with the ground appropriate for (between 45 to 60 ).72. The provision of the route, the width and slope of the ramp is (shoul
29、d not be less than 1. 5 meters and suitable for use 1:6).73. The double row scaffolding lateral horizontal pole side against the wall to wall decoration distance should not be below (greater than 100 画).74. When the scaffolding is based on the equipment, the trench, if no measures are taken, should
30、not be excavated.75. If the scaffold is set up, it shall comply: (once the height should not exceed two adjacent walls).76. When the scaffold is removed, it must be (must be carried on the upper and lower layers, strictly forbidden to work at the same time).77. When the scaffold is taken to be disma
31、ntled in piecewise separation, the scaffolding that is not removed shall be set at both ends of the wall and the transverse bracing device.78. The number and quality of the sampling inspection should be taken as follows: (the fastening of the horizontal horizontal bar and the vertical horizontal bar
32、, each 51-91 samples should be sampled at 5, which will not be allowed to be unqualified).79. Construction engineering scaffold outside the outside the closed set net, its mesh density should not be less than 2000/100 cm (2).80. After the removal of the steel plate parts, the distance between the te
33、mporary storage and the edge of the floor shall not be less than (1 meter).81. Cross operations at a height above (24 meters) at a level that should be placed in a double-layer safe shelter for all personnel entering.82. Safety protection facilities should be carried out (item by item) before constr
34、uction is carried aloft.83. The shelf and upper pull of the suspended steel platform must be located on the (building).84. Acceptance of safety protection facilities shall be equipped with construction organization and design and relevant inspection data, safety protection facilities acceptance reco
35、rd. Safety protection facilities (change record and visa) and other information.85. On rainy days and snowy days, reliable anti-skid, cold and (anti-freeze) measures must be taken.86. The roof of the slope is greater than 1:2. 2. The protective railings should be set (1. 5 meters) high.87. The fixat
36、ion of the railings and the connection of thecrossbar,The whole structure should make the guard rail any place on the upper pole, which can withstand any external force (lOOON).88. The protective railing must be top-down set net closed with the security, or set up under the rail tightly fixed height
37、 of not less than (18 cm) its cover 40 cm foot or feet.89. The elevator wellhead must be installed with protective railings or fixed gate; A safety net is set up every two or more floors (10 meters) in the elevator shaft.90. The side length (more than 90 cm) of the mouth of the cave, surrounded by a
38、 protective railings, the hole under the net AnQuanPing.91. The vertical hole in the place such as metope and every hole should be equipped with fixed landing door, door lattice spacing should not be greater than (15 cm).92. The edge to the floor or bottom below 80 cm vertical hole and so on windows
39、ill, such as side drops more than 2 meters, should be added a temporary fence (1. 2 meters) high.93. Located at the entrance of the vehicle, deep ditch and pipe pit, the tank should be able to withstand loads that are not inferior to local rated truck rear wheels (2 times).94. The bottom of the foot
40、 of the staircase should be firm and not high. Vertical ladder work Angle (5 to 75 +) asappropriate.95. In the suspension of concrete pouring, if the safety equipment is not available, a safety belt must be fastened, or a safety net is added.96. The rigging of the suspension work, the footpad, the h
41、anging basket, the hanging cage, the platform and other equipment need to be used by (technical appraisal) or verification.97. The installed pipe must have a structure or operating platform as a foothold, and no piping in the installation (standing or walking) is strictly prohibited.98. All kinds of
42、 vertical transport receiving platforms should be set (security doors) or movable protective railings, except for the protective railings on both sides.99. Temporary guardrails must be installed in the staircases of the floors and the staircases. The top floor should be installed with the structure
43、of the project.The life of a seat belt is (3-5 years).101. The minimum safe operating distance between the perimeter of the construction project (including the scaffold) and the 10KV external overhead line line shall be (6 m).102. The minimum vertical distance of the vehicle road at the construction
44、 site to the 220/380v overhead line shall be (6 m).103. In the tunnel construction, the lighting power supply voltage shall not be greater than (36V). In the wet site construction, the lighting supply voltage shall not be greater than (24V).104. It is strictly forbidden to use metal pipes, metal sca
45、ffolds, structural steel bars and other metal objects for use in welding.105. Upon welding of arc welding, once personnel and mechanical accidents occur, immediately (cut off the power supply).106. When a calcium carbide is on fire, a dry sand or (carbon dioxide) fire extinguisher must be used. No o
46、ther fire extinguisher or water is prohibited.107. In order to prevent the arc of electric welding from harming the eye, the protective method should be used (filter).108. The safe voltage is (12V) in the environment with high humidity and electric shock hazard.109. According to the noise standards
47、of Chinas industrial enterprises, the noise level of the newly built and rebuilt enterprises is (85) db.110. The woodworking area of the construction site belongs to (the area of fire and fire).111. The construction site fire certificate shall be approved by the department (project leader).112.No ac
48、cess to flammable and explosive goods warehouse or loading and unloading operations.113. The door of the flammable and explosive goods warehouse should be opened.114. Acetylene cylinders used for gas welding should be placed outside the open fire (10 meters).115. During the construction of the winte
49、r period, oxygen cylinder bottlenecks are frozen and the measures should be taken to defrost.116. The safe distance between the acetylene cylinder of the welder and the oxygen cylinder is (5) meters.117. In the following items, (3) are flammable. 1. Asbestos tile 2. Glass 3. Glass steel 4. Concrete118. During the winter construction,