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1、安全生产技术综合模拟题一（Comprehensive simulation of safety production technology 1）Safety engineers safety technical simulation test item 1 2007-9-7 9:50:46 the safety engineer signed up for the first chapter of mechanical electrical safety technology1. Single choice1. The distance between belt shield and belt
2、 should not be less than _mm.A. 2030 B.40 C.D. 502. Table and floor type grinder, the maximum opening Angle should _.A. 180 degrees or lessB. 150 degrees or lessC. 125 degrees or lessD. 100 degrees or less3. Emergency lighting for evacuation shall not be less than _.A. 0.51 xB.l lxC. 1.51 xD. 2.51 x
3、The color of the ammonia cylinder is _A. greenB. whiteC. light blueD. yellow5. The working wire rope should be preferred by the mechanism of the pulley and the roller.A. point contact wire ropeB. Wire contact wire ropeC. Contact wire ropeD. The wire rope6. The parameter of the heavy lifting mechanic
4、al work is _.A. Type of workB. Agency load rateC. intermittent characteristicsD. the weight7. From the stress situation, the shape of the cross section of the hook is the most reasonable.A. the circularB. trapezoidalC. T glyphD. the rectangular8. The cylinder of corrosive gas, each year tested 1 tim
5、es, the gas cylinders of the general gas, inspected once every _ years; Gas cylinders with inert gas, inspected one time per year.A. 3, 4, 5B. 1, 3, 5C. 2, 3, 4D. 2, 3, 59. For the digital display, the following description is incorrect.A. dynamic rangeB. accurate readingC. Qualitative displayD. qua
6、ntitative display10. When an electric current is flowing underground from the site, the current generates a voltage drop in the soil around the site. The voltage between the two feet is called _ when the person is around the place.A. step voltageB. Step potentialC. Critical voltageD. failure voltage
7、11. Insulation, screen protection and spacing are the safety measures to prevent electrical shocks.A. electromagnetic field damageB. indirect contact with electric shockC. electrostatic shockD. Direct contact with electric shock12. Connect the uncharged metal part of the electrical equipment to the
8、protection of the power grid in normal conditions, and call it _.A. protective earthingB. Protection zeroC. Work groundingD. job zero13. The leakage current of the leakage protective device is highly sensitive.A. 30 mA 1 AB. 30 mA and belowC. 1 and aboveD. 1 below A14. Screen protection should be ad
9、opted when electrical equipment is not conductive to insulation or insulation to ensure safety. The variable distribution equipment should have perfect screen protector, and the height of the blocking should not be lower than that of _m.A. 1. 4B. 1.7C. 2.0D. 2.415. In order to prevent the leakage of
10、 protected areas, the light-type safety devices assembled on the pressure plane must adopt _ in the shape of the light screenA. triangleB. trapezoidalC. rectangularD. the circular16. The safe working life of the crane mainly depends on the number of years of working without damage.A. Work organizati
11、onB. Vulnerable parts of the institutionC. metal structureD. electrical equipment17. There shall be no open fire within the _m range around the carbide library.5 A.10 B.15 C.D. 2018. During lifting operations near overhead lines,The minimum distance between lifting machine and 10 kV line conductor i
12、s moA. 1.52 B.C. 2.53 D.19. In the 380 V ungrounded low voltage system, the protection grounding resistance is not greater than _ ohm.1 A.2 B.4 C.10 D.20. In the TN system, the following is not correct.A. Protection of zero line and working zero line can be SharedB. Equipment is adopted to protect z
13、erosC. In the same zero system, partial equipment is not allowed to be grounded and zeroD. The fuse should be installed on the zero line21. In accordance with the relevant standards, flammable liquid has a fire hazard environment.A. 01 B.10 C.21 D.22. The main measures are to install lightning rods,
14、 lightning rods, lightning protection nets and lightning protection zones.A. lightning infringedB. direct lightningC. counterattackD. secondary discharge23. When operating grinding wheel, not _.A. Use the front grinding of the grinding wheelB. Check whether the wheel has broken and damaged before us
15、eC. Stand on the front of the grinding wheelD. Use of a grinder shield24. The following information about the use of a leakage protector is correct.A leakage protector can be used to protect the safety of the person. It can also be used to supervise the insulation of the low-pressure system or equip
16、mentB. The circuit of the leakage protector shall not be insulated after installationC. The leakage protection device must not be used in the daily operation to check whether it is sensitive and reliableD. In TN distribution system, electrical equipment can be installed without any leakage protectio
17、n25. The damage to human eyes by arc welding is mainly _ radiation.A. infraredUv B.C. X rayD. the laser26. When the wire is grounded, the closer the human body is to the site, the higher the leap voltage is, and generally the distance between the earth and the earth is almost zero.Within 10 mB. othe
18、r than 20 mC. 30 m awayD. beyond 40 m27. When using portable electric appliances or lamps in a wet working place or in a metal container, the safety voltage of _V shall be adopted.12 A.B. 2436 C.42 D.28. The width of the main channel of the vehicles out of the warehouse shall not be less than _m.2 A
19、.B. 2.53 C.4 D.29. When operating the polishing tool, you must use _.A. apronB. moistureproof suitC. eye protectionD. anti-static clothing30. Buildings with dangerous explosive environment should take measures to prevent lightning.A. lightning inductionB. direct lightningC. ray is attractiveD. a lig
20、htning strike31. In an explosive hazardous environment, when the gas is lighter than the air, the electrical circuit shall be laid or _ at a lower level.A. grounding protectionB. Wear aluminum tube protectionC. wear zinc tube protectionD. Cable trench laying32. In stamping machinery, the most injure
21、d parts are _.Hands and fingersB. the feetC. eyesD. back33. The speed of the electric car in the factory must not exceed _km per hour.10 A.15 B.20 C.D. 3034. For the third type of lightning protection buildings, the rolling radius shall be _m when the rolling ball method is used to determine the sco
22、pe of protection.A. 2030 B.45 C.D. 6035. The woodworking pressure plane and planing to replace the cutter,Operator _ wearing gloves; Metal cutting lathes are used to wear gloves when they are working.A. no, noB. should, should notC. No, shouldD. should be, should be36. Compared with the corrosive en
23、vironment, the substation and distribution are located in _.A. the wind direction of the minimum frequency wind direction of the yearB. The lower wind side of the lowest frequency wind direction of the yearC. The downwind side of the wind direction of the yearD. Arbitrary location37. When the power
24、failure mode is used for inspection, maintenance and repair of electrical installations, it shall be mounted on a knife or switch that controls the electricity of the electrical apparatus.A. stop, high pressure danger warning signsB. Staff listC. Operating rulesD. no closing, no work warning signs38
25、. Water spray system for oil - immersed power transformer and other electrical equipment should be used.A. the centrifugal typeB. the impact typeC. the typeD. medium speed type39. The following operating rules for the shearing machine, the error is _.A. before operation, take A flight testB. When op
26、erating, to ensure accuracy, the application hand directly helps the feedingC. motor is not allowed to start with load, and the clutch should be off before drivingD. The belt, flywheel and shaft of the shears should be installed with protective cover40. When operating machinery, the shield is in a c
27、losed position, and once the shield is in an open position, it will stop the mechanical operation, referring to the operation mode of the following _.A. fixed protective coverB. Interlock shieldC. Adjustable protective coverD. Movable protective cover41. At the end of the machine work, the safety wo
28、rk that should be important and highest priority is _.A. cleaning machineB. turn off the electrical system and power off the machineC. lubricating machineD. organize the toolsThe following casting operation is incorrect _.A. keep the premises dryB. Preheat the tool before operationC. head to watch t
29、he riser operationD. Scum work should be thorough in case of explosion43. _ electrical equipment is able to withstand the internal explosion of explosive mixture without damage, but also through the shell holes or any combination of surface structure, not make the internal explosion external explosi
30、on of explosive mixture of electrical equipment.A. increased safety typeB. Intrinsically safeC. flameproofD. oil-filled type44. The emergency working time of fire emergency lamps should be no less than _min and not less than the emergency working time of the lamp itself.15 A.30 B.C. 6090 D.45. The s
31、torage time of grinding machinery using organic binding agents (such as resin and rubber) should not exceed the time of year. The grinding wheel that has been stored for a long time must be qualified before it can be used.1 A.2 B.3 C.4 D.46. The number of scrapped broken wires used for hoisting hot
32、metal or dangerous goods in steel wire rope is taken, and the number of broken wires is taken from the steel wire rope of general cranes, including the reduction of the steel wire surface abrasion.A. 90%B. 80%60% C.D. 50%47. Explosion-proof marks are is IIAT5 explosion-proof electrical equipment its
33、 mark represents the significance of _.A. II type isolation gradeClass A T5 explosion-proof electrical equipmentB. 11 types of intrinsically safe classesClass A T5 explosion-proof electrical equipmentC. II type isolation typeClass A class T5 explosion-proof electrical equipmentD. Class II type of in
34、creaseClass A T5 explosion-proof electrical equipment48. The height of the protective railings in the production area of industrial enterprises shall be _mm, and the horizontal bar with spacing of _mm shall be provided, and the base of the railings shall be set with a height not less than _mm.A. 100
35、0, 300, 50B. 1000,350,70C. 1050, 300, 50D. 1050, 350,7049. The planer of woodworking planer knife shaft is more secure with _ tool shaft.A. six prismB. four prismC. how prismD. cylindrical50. The response time of the detection type safety device of the pressure machine shall not exceed _soA. 0.01B.
36、0.02C. 0.05D. 0.151. Incorrect description of the storage and use of calcium carbide is _.A. The floor of the calcium carbide warehouse should be 0.251. 6m above the outdoor groundB. the calcium carbide storehouse should be fireproof constructionC. The application of an alloy tool with a copper cont
37、ent of more than 70% is used when opening the caskD. The barrel should be protected against collision or rolling52. In order to ensure the safe operation of mechanical equipment, the first safety measures taken are _.A. Direct security technical measuresB. indirect safety technical measuresC. Guidin
38、g safety technical measuresD. safety protection device53. The electric current of _mA can cause a fatal electric shock, and the nervous system is stimulated by a strong current, causing respiratory paralysis.5 A.B. 50100 C.200 D.54. The following lifting mechanical operation is incorrect _.A. check
39、the clearance area before homework, and determine the routeB. Before you start your work, you must ring or alarmC. Use the main and auxiliary hooks to carry on the liftingD. The driver shall not be allowed to increase the operating range during normal operation55. The key to the rescue of an electri
40、c shock is _.A. The way of electric shockB. The size of human resistanceC. The voltage of electric shockD. Can you get out of power and emergency rescue as soon as possible56. The organization that implements the horizontal moving material by the operation of a crane or crane trolley is called _.A.
41、Lifting mechanismB. Operation mechanismC. variation mechanismD. rotating mechanism57. In accordance with the hazardous environment subdivision, the intermediate connector of the electrical circuit in area 1 must be used in an explosion-proof junction box or junction box that is compatible with the h
42、azardous environment.A. increased safety typeB. flameproofC. oil-filled typeD. filling sand mold58. The power line of mobile power tools and their switch boards (boxes) are adopted _.A. Double-layer plastic copper core insulated conductorB. double copper core plastic cordC. Copper core rubber insula
43、ting sheath or copper core polyvinyl chloride insulated sheath cordD. ordinary wire59. The lifting and amplitude of the crane must be at least _.A. A set of drop limit position limitersB. An elevated limit position limiterC. two sets of limit position limitersD. two sets of elevated limit position l
44、imiters60. The bottom surface of the power distribution cabinet installed on the ground shall be higher than the ground _mm.10 to 20 A.B. 20 5050 a 100 C.D. 80 a 150The electrical index of insulation is mainly insulation resistance, and the insulation resistance in any case shall not be lower than t
45、he working voltage of every volt.100 A.500 B.1000 C.1500 D.62. The power cable length of the mobile power tool should not exceed the length of _m,2 A.3 B.4 C.5 D.63.The general requirement for mechanical safety protection is _.A. The structure is simple and the layout is reasonableB. It has certain strength, rigidity and durabilityC. there can be sharp edgesD. Linkage with equipment operation mechanism64. In designing the machine control system, the safety pri