2022 melting welding and thermal cutting recurrent training question bank simulated examination platform operation

Source of question bank ： Safety production simulation test, a little public official account.

2022 The title of the work license for fusion welding and thermal cutting in is a variety of practice modes of the national question bank for fusion welding and thermal cutting ！2022 The operation of the simulated test platform of the recurrent training question bank of fusion welding and thermal cutting is based on the new test outline of fusion welding and thermal cutting . Melting welding and thermal cutting examination 100 Pass the safety production simulation test and pass the simulation test at one point .

1、【 Single topic selection 】 Gas of the same mass , The smaller the volume , Then the pressure ().（  C  ）

A、 unchanged

B、 The smaller it is

C、 The bigger it is

2、【 Single topic selection 】 The code name of superhard aluminum alloy is ().（  B  ）

A、LF

B、LC

C、LY

3、【 Single topic selection 】 ISO14000 The standard was established in () year .（  B  ）

A、1992

B、1993

C、1990

4、【 Single topic selection 】 The following can be used as the conductor of the electric welding machine circuit is ().（  B  ）

A、 The tubing

B、 Special conductor

C、 Sea water

5、【 Single topic selection 】 The following statements about safety production knowledge , The wrong is ().（  C  ）

A、 Operate carefully , Strictly implement the brazing process discipline , Keep all records

B、 Analyze correctly 、 Judge and deal with various potential accidents , Nip the accident in the bud

C、 There is no need to hand over the safety situation during shift handover

6、【 Single topic selection 】 The measures that do not belong to the prevention of falling accidents are ().（  A  ）

A、 Electric mechanical equipment shall be grounded and connected to neutral according to regulations

B、 Dangerous section or pit side 、 Add warning at the scarp 、 Alarm lamp 、 Maintain railings , Increase the brightness of construction lighting at night

C、 The lifting machines and tools shall be maintained frequently 、 Check , Overload and illegal operation are prohibited

7、【 Single topic selection 】 In the following welding methods , What does not belong to fusion welding is ().（  B  ）

A、 Submerged arc welding

B、 Diffusion welding

C、 Argon arc welding

8、【 Single topic selection 】 The safe voltage selected for atomic hydrogen welding shall not exceed ()V.（  C  ）

A、26

B、25

C、24

9、【 Single topic selection 】 In argon and carbon dioxide mixed gas shielded welding, the amount of carbon dioxide is usually ().（  B  ）

A、1% to 5%

B、5% to 30%

C、15% to 30%

10、【 Single topic selection 】 The basic types of welding methods for submerged arc butt straight welds are () Kind of .（  B  ）

A、1

B、2

C、3

11、【 Single topic selection 】 When submerged arc welding ordinary structural steel , The flux used is ().（  C  ）

A、LJ301

B、HJ301

C、SJ301

12、【 Single topic selection 】 Which of the following is not the form of tube panel ？（）（  B  ）

A、 The two rings of pipes in the outer ring are shortened

B、 The inner and outer tubes are parallel

C、 The outer ring pipe is short circuited

D、 The outer ring pipe is short circuited , The inner and outer tube panels cross

13、【 Single topic selection 】 The current of automatic submerged arc surfacing is higher than that of manual arc welding ().（  A  ）

A、3 to 5 times

B、2 to 3 times

C、5 to 8 times

14、【 Single topic selection 】 When other welding parameters remain unchanged , The diameter of welding wire increases , Width of surfacing weld ().（  C  ）

A、 unchanged

B、 Reduce

C、 increase

15、【 Single topic selection 】 The reasons that are easy to cause cylinder explosion are ().（  C  ）

A、 The bleeding speed is too slow

B、 The gas cylinder is not fully filled

C、 Combustible gas cylinders ( Acetylene 、 hydrogen 、 Gas cylinders ) Air leakage occurs

16、【 Single topic selection 】 During the regular inspection of the hook of the tower crane , Which of the following situations does not need to be scrapped ( ).（  D  ）

A、 use 20 There are cracks on the surface observed with a magnifying glass

B、 The wear of the spindle exceeds... Of its diameter 5%

C、 The wear of the section at the hanging rope exceeds... Of the original height 10%

D、 The opening is larger than the original size 5%

17、【 Single topic selection 】 The safety production management of construction projects must adhere to safety first 、 The policy of putting prevention first . Prevention first is embodied in the whole process of safety production management of construction engineering , Specific refers to ( )、 Post event summary .（  A  ）

A、 Plan ahead 、 In process control

B、 Pre control 、 Guard against

C、 Take precautions 、 Supervise and plan

D、 Plan ahead 、 Automatic control of the whole process

18、【 Single topic selection 】《 Safety Law of the people's Republic of China on special equipment 》 since 2014 year （） Come into effect .（  A  ）

A、1 month 1 Japan

B、7 month 1 Japan

C、9 month 16 Japan

D、10 month 1 Japan

19、【 Single topic selection 】 Argon can effectively isolate the surrounding air , It itself , Insoluble in metal , but ().（  A  ）

A、 Does not react with metals

B、 React with metals

C、 Both are possible

20、【 Single topic selection 】 The standard number is GBJ130-1990 yes ( ).（  D  ）

A、 Technical specification for sliding formwork engineering

B、 Technical code for application of concrete admixtures

C、 Concrete quality control standard

D、 Technical code for reinforced concrete rising slab structure

21、【 Single topic selection 】 The implementation of the construction schedule is ( ) Material assurance of .（  A  ）

A、 Implementation of construction schedule

B、 Prepare production resource supply plan

C、 Implementation of resource supply plan

D、 Prepare resource management plan

22、【 Single topic selection 】 The method of sampling usually uses mathematical statistics ( ) Random sampling .（  C  ）

A、 The total number

B、 Number of samples

C、 The basic principle

D、 statistic

23、【 Single topic selection 】 When pouring concrete , The height of pouring column concrete shall not exceed ( )m, Otherwise, the tumbling barrel shall be set for blanking .（  B  ）

A、1

B、2

C、3

D、4

24、【 Single topic selection 】 There is a layer of cold air film on the inner wall surface of the water-cooled nozzle , It can shrink the effective section of plasma arc column , This contraction is called ().（  C  ）

A、 Cold shrinkage

B、 Magnetic contraction

C、 Thermal shrinkage

25、【 Single topic selection 】 Deep penetration laser welding , The role of shielding gas does not include ().（  B  ）

A、 Protect the welded part from oxidation

B、 cooling

C、 Suppress the negative effects of plasma clouds

26、【 Single topic selection 】 The steel with good weldability is ().（  C  ）

A、 High carbon steel

B、 Medium carbon steel

C、 Mild steel

27、【 Single topic selection 】 The working place of fusion welding shall have good natural lighting or local lighting , And ensure that the illumination of the working face reaches ().（  A  ）

A、50x to 100lx

B、40x to 100lx

C、40x to 90lx

28、【 Single topic selection 】 The external characteristics of the power supply used for electroslag welding are ().（  B  ）

A、 Steep drop characteristics

B、 Flat characteristics

C、 Double stepped characteristics

29、【 Single topic selection 】 The following statements about the construction of waterproof mortar waterproof layer , The right is ( ).（  A  ）

A、 Mortar waterproof engineering is to use cement slurry and cement mortar with a certain mix proportion （ Called waterproof mortar ） Construction in layers and times , A closed waterproof whole with alternating plastering and compaction

B、 The back surface of the waterproof mortar waterproof layer and the waterproof layer of the base course adopt the method of five layers , The waterproof layer of the base course on the upstream surface adopts the method of four layers

C、 Each waterproof layer shall be constructed continuously , The construction of plain ash layer and mortar layer can not be completed on the same day

D、 Kneading is to make the cement mortar and plain mortar penetrate and combine firmly with each other , It not only protects the plain ash layer, but also plays a waterproof role , When kneading is difficult , Allow to dilute with water

30、【 Single topic selection 】 Which of the following is the efficiency of the boiler ？（）（  A  ）

A、Q1/Qr×100

B、Q2/Qr×100

C、Q3/Qr×100

31、【 Single topic selection 】 Pulse width generally refers to the duration of a pulsed laser , Increasing the pulse width can increase the laser ().（  C  ）

A、 Directional

B、 Monochromaticity

C、 energy

32、【 Single topic selection 】 Rainy and snowy days ,() Work at height .（  B  ）

A、 Absolutely.

B、 Take the necessary measures to

C、 Can not be

33、【 Single topic selection 】 The volume of martensite is larger than that of austenite with the same weight ().（  B  ）

A、 identical

B、 Big

C、 Small

34、【 Single topic selection 】 When submerged arc welding , Suspended welding is generally used for butt welding without groove and gap , To ensure full penetration , The thickness of the workpiece shall be fully welded during front welding ().（  B  ）

A、60% to 70%

B、40% to 50%

C、50% to 60%

35、【 Single topic selection 】 Which of the following is not a working feature of superheater and reheater ？（）（  A  ）

A、 Good cooling conditions

B、 The wall temperature is very high

C、 Reliable safety protection measures are required

D、 Steam pressure drop should be minimized

36、【 Single topic selection 】 The single hook of the crane shall be set on one side of the main beam （）.（  A  ）

A、 Anti tipping safety hook

B、 Deflection display device

C、 Stop

37、【 Single topic selection 】 The explosion after overpressure of steam boiler, compressed gas, steel cylinder, oil barrel, etc. belongs to :（  B  ）

A、 Chemical explosion

B、 Physical explosion

38、【 Multiple choice 】 Form of quality disclosure ( ).（  ABCD  ）

A、 Convene the personnel meeting of the operation team

B、 Exchange opinions, dispel doubts and get the approval of the disclosure content

C、 Written document notification method

D、 Have a verbal conversation

E、 Let me know by phone

39、【 Multiple choice 】 The auxiliary equipment of the boiler includes （） Other components .（  ABCD  ）

A、 Coal handling equipment

B、 Water supply equipment

C、 Ventilation equipment

D、 Dust removal equipment

40、【 Single topic selection 】 According to the number of times the steel wire rope is twisted, it can be divided into , It is not suitable to be used as a lifting rope （）.（  A  ）

A、 Single winding rope

B、 Double winding rope

C、 Three winding ropes

41、【 Multiple choice 】 The following is about the case when the compression surface is a vertical plane , The right thing to say is ( ).（  ACD  ）

A、 The total hydrostatic pressure on a vertical rectangular plane is equal to the product of the pressure at the centroid of the plane and the area of the plane

B、 The total hydrostatic pressure on the vertical rectangular plane is equal to the product of the pressure at the center of gravity of the plane and the plane area

C、 Total static pressure P The direction of is perpendicular to the action surface , Its action point is on the balance axis of the action surface

D、 Total static pressure P The direction of is perpendicular to the action surface , The distance between the action point and the liquid level is 2/3h,h Is the height of the liquid level

E、 Total static pressure P The direction of is parallel to the action surface

42、【 Multiple choice 】 Outlet of organic heat carrier phase furnace , Should be equipped with ____ and ____ device .（  AD  ）

A、 Overtemperature alarm

B、 Overpressure alarm

C、 High and low liquid level alarm

D、 Differential pressure alarm

43、【 Single topic selection 】 The soil is divided into eight categories according to the difficulty of construction excavation , use ( ) It can be identified as soft stone .（  C  ）

A、 Dig with a hoe

B、 Dig with a pick

C、 With an air pick 、 Sledgehammer, etc

D、 By blasting

44、【 Multiple choice 】 The following are the main basis for the bidder to calculate the bid price ( ).（  ABCD  ）

A、 Bidding documents

B、 Construction drawings and bill of quantities

C、 Construction organization design

D、 Material budget price

E、 The overall price of the project

45、【 Multiple choice 】 The use steps of the theodolite include ( ).（  ADE  ）

A、 Placement of instruments

B、 Alignment

C、 Rough leveling

D、 Aim at the target

E、 reading

46、【 Single topic selection 】 In the following options , Tasks that do not belong to machinery and equipment management are ( ).（  D  ）

A、 In time 、 Provide excellent services to the construction team in a complete manner 、 Applicable tools , Actively promote and adopt advanced tools , Ensure construction and production , Improve labor efficiency

B、 Take effective management measures , Accelerate the turnover of tools , Extend tool life , Maximize tool effectiveness

C、 Do a good job in the collection of tools 、 Hair 、 Keep and maintain 、 Maintenance work

D、 According to the characteristics of different tools, establish corresponding management systems and methods to accelerate turnover , Give full play to as much efficiency as possible with less investment

47、【 Multiple choice 】 below （） It's a windproof and anti-skid device .（  ABCD  ）

A、: Rail clamp

B、 Rail jacking device

C、 Rail press

D、 Don't track the device

48、【 Single topic selection 】 According to the relevant regulations of our country , Security raw The production simulation test is a little through , The laws and regulations of , Don't execute ( ) standard , Enterprises should bear corresponding legal responsibilities .（  B  ）

A、 Recommendatory

B、 mandatory

C、 Country

D、 Enterprises

49、【 Multiple choice 】 The main contents of standardization work are ( ).（  ABD  ）

A、 standard-setting

B、 Implementation of standards

C、 The feasibility of the standard

D、 Supervise the implementation of standards

E、 Evaluate the standard

50、【 Single topic selection 】 The highest wall temperature is （）.（  A  ）

A、 Superheater

B、 Reheater

C、 Condenser

D、 Economizer

51、【 Multiple choice 】 The purpose of the construction regulations is to adjust . Safety student production The mock exam is a little through . Whole social relations ( ) All kinds of social relations occurring in construction activities or construction administration activities .（  ABCD  ）

A、 The state and its relevant institutions

B、 enterprises and institutions

C、 Social groups

D、 citizens

E、 The government

52、【 Single topic selection 】“ Emergency stop ” The gesture signal is ：（）（  D  ）

A、 Reach your arms to the side and lower them forward , Angle with body 30o, Five fingers separate naturally , Rotate around the wrist ;

B、 Straighten your forearm up to the side , Five fingers together, palm facing outward ;

C、 Place your forearms horizontally in front of your chest , Spread your fingers , Palm down , Swing horizontally to one side ;

D、 Place your forearms horizontally in front of your chest , Spread your fingers , Palm down , At the same time, swing horizontally to both sides .

53、【 Single topic selection 】《 Special equipment safety law 》 Regulations , The safety management personnel of special equipment shall regularly inspect the use of special equipment , Problems found should be dealt with immediately ; In case of emergency , Sure ____ Stop using special equipment and report to the relevant person in charge of the unit in time .（  C  ）

A、 Put forward

B、 apply

C、 decision

54、【 Single topic selection 】《 Boiler safety technical supervision regulations 》 Regulations ： During boiler maintenance , In the pot ( shell ) And wet flue when using electric light for lighting , The lighting voltage shall not exceed （  B  ）

A、12V

B、24V

C、36V

55、【 Multiple choice 】 Accident hidden danger search

（  CD  ）

A、 The command signal is unknown

B、 The included angle of hoisting is too large

C、 Inclined crane 、 Cable tension is dangerous

D、 The commander did not wear safety helmet

56、【 Judgment questions 】 1999 year 10 In June, the State Economic and Trade Commission promulgated 《 Occupational safety and health management system specification and use guide 》, And issued a notice to carry out the pilot work of occupational safety and health management system in China .（  ×  ）

57、【 Judgment questions 】 ISO14000 It's the international organization for standardization (ISO) The first 207 Technical Committee (TC207) from 1993 A series of international standards for environmental management began to be formulated in .（  √  ）

58、【 Judgment questions 】 In general , The harm of high-frequency current to human body is the most serious , The harm of power frequency current to human body is the second , Direct current does less harm to human body .（  ×  ）

59、【 Judgment questions 】 In a broad sense , Major hazard sources refer to those that may lead to major accidents .（  √  ）

60、【 Judgment questions 】 Force is the action of one object on another .（  √  ）

61、【 Judgment questions 】 According to the different mixing methods of combustible gas and oxygen, cutting torch can be divided into two types: jet suction cutting torch and isobaric cutting torch , Among them, isobaric cutting torch is widely used .（  ×  ）

62、【 Judgment questions 】 The pile foundation has the advantages of fast construction speed 、 The earthwork volume is small 、 The advantage of strong adaptability .（  √  ）

63、【 Judgment questions 】 A large amount of acid-base leakage only needs sand , It can be mixed with substances neutralized by acid and alkali , It can also be washed with a lot of water , Dilute the water and put it into the wastewater system .（  ×  ）

64、【 Judgment questions 】 The danger of rotary motion refers to the injury caused by the human body or clothing rolling into the rotating part of the machine .（  √  ）

65、【 Judgment questions 】（） Loss of voltage protection means that if the crane stops running due to fault or loss of voltage during operation , When the power supply is restored , The controller is not in the zero position , It will not run automatically because the power supply is restored .（  ×  ）

66、【 Judgment questions 】 Gasoline is divided into aviation gasoline and vehicle gasoline according to its purpose .（  √  ）

67、【 Judgment questions 】 The steam water mixture flows upward in the slag condensation pipe , The flue gas washes longitudinally outside the pipe .' Safety production simulation Exam one Diantong '（）（  ×  ）

68、【 Judgment questions 】 The double bottom rotary drill bit is developed on the basis of the original single bottom drill bit .（  √  ）

69、【 Judgment questions 】 Whatever gas is in the bottle , Can be transported in the same vehicle .（  ×  ）

70、【 Judgment questions 】 The gas cylinder is in use , Severe corrosion was found 、 Damage or doubt its safety and reliability , Inspection shall be carried out in advance .（  √  ）

71、【 Judgment questions 】 The post knowledge requires that the standard staff should master the standards and management regulations related to the post .（  √  ）

72、【 Judgment questions 】 Argon arc welding can weld copper 、 aluminum 、 Alloy steel and other non-ferrous metals .（  √  ）

73、【 Judgment questions 】 The welding process can only be used for the connection of metal materials .（  ×  ）

74、【 Judgment questions 】 There is no arc radiation during electroslag welding .（  √  ）

75、【 Judgment questions 】 The driver shall not operate the crane with invalid safety device .（  √  ）

76、【 Judgment questions 】 The outlet medium of hot water boiler is hot water , Therefore, the outlet water temperature cannot exceed 100℃.（  ×  ）

77、【 Judgment questions 】 The fuse is mainly used to prevent short circuit .（  ×  ）

78、【 Judgment questions 】 Silicon is a non-metallic , But it has some properties of metal .（  √  ）

79、【 Judgment questions 】 The user unit shall establish and effectively implement the safety management system of special equipment and the energy-saving management system of high energy consuming special equipment , And operating procedures .（  √  ）

80、【 Judgment questions 】 Special equipment with excessive energy consumption can continue to be used （）· Latest solution Analysis ·（  ×  ）

81、【 Judgment questions 】 Carbon arc gouging cannot clean the rough edges of castings 、 Flash 、 Defects in casting risers and castings .（  ×  ）

82、【 Judgment questions 】 The water in the pot should be kept proper PH value ,PH If the value is too high or too low, the protective film will be damaged and the corrosion will be accelerated .（  √  ）

83、【 Judgment questions 】 Hydraulic cementitious materials can only condense in water 、 Sclerosis 、 Maintain and develop strength .（  ×  ）

84、【 Judgment questions 】 Gas cylinders filled with gas are a source of danger .（  √  ）

85、【 Judgment questions 】 The safety valve shall be equipped with a discharge pipe , It is not allowed to install valves on the discharge pipe . The drain pipe shall lead directly to a safe place , And have sufficient cross-sectional area and anti freezing measures , Ensure smooth exhaust .（  √  ）

86、【 Judgment questions 】 The types of declaration and registration of major hazard installations are divided into : Flammable 、 Explosive 、 Tank farm for hazardous substances ( Storage tank ), Flammable 、 Explosive 、 Reservoir area of toxic substances ( library ), With fire 、 The explosion 、 Places with poisoning risk , Penstock , Boiler , Pressure vessel , Enterprise dangerous construction ( structure ) Architecture .（  √  ）

87、【 Judgment questions 】 The positioning of buildings is the basis for foundation setting out and detail setting out .（  √  ）

88、【 Judgment questions 】 Inspection of concrete strength , It shall be based on the strength of the test piece prepared at the place of concrete pouring and cured under the same conditions as the structural entity .（  √  ）

89、【 Judgment questions 】 Under high temperature, martensite with coarse grains is cooled at a certain temperature 、 Safe production Mock exam A little 、 Queshi , It is easy to form widmanstatten structure .（  ×  ）

90、【 Judgment questions 】 Lime soil can be used for the base and subbase of high-grade pavement .（  ×  ）

91、【 Judgment questions 】 Add silicon to brass , It can improve the mechanical properties 、 Corrosion resistance and abrasion resistance , Used for manufacturing marine ship parts and chemical machinery parts .（  √  ）

92、【 Judgment questions 】MIG Welding is applicable to the welding of medium and thick plates of aluminum and aluminum alloy, stainless steel and other materials .（  √  ）

93、【 Judgment questions 】 The content of enterprise standardization includes combining the actual situation of the enterprise , Develop enterprise standards , Supervise and inspect the standards .（  √  ）

94、【 Judgment questions 】 The competent administrative department of construction under the State Council shall exercise comprehensive supervision and administration over the safety production of construction projects throughout the country .（  √  ）

95、【 Judgment questions 】 Ordinary plywood is divided into three grades according to the number and range of visible material defects and processing defects on the finished board . That is, superior products 、 First class and qualified products .（  √  ）

96、【 Judgment questions 】 The gas cylinder is in use , When serious corrosion damage is found or there is doubt about its safety and reliability , Inspection shall be carried out in advance .（  √  ）

97、【 Judgment questions 】 Oxygen cylinders can be transported with acetylene cylinders in the same vehicle .（  ×  ）

98、【 Judgment questions 】 For oil fires, foam carbon dioxide or dry powder extinguishers can be used. .（  √  ）

99、【 Judgment questions 】 When welders operate in summer , The work clothes are wet after sweating , Therefore, the body must not rest on the weldment .（  √  ）

100、【 Judgment questions 】 Electron beam as welding heat source , With high energy density , And accurate control and rapid response .（  √  ）

Support the examination questions of precision melting welding and thermal cutting in all regions of the country , Support safety certificate , Special operation certificate , Exercises on the question bank of vocational skill appraisal and other types of work .