2022 operation of simulated examination platform for examination question bank of welder (elementary) special operation certificate

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

2022 Annual welder （ primary ） The simulated examination question bank of the examination questions is （ primary ） Various practice modes of examination questions ！2022 Welder （ primary ） The simulated examination platform of the examination question bank of the special operation certificate shall be operated according to the requirements of the welder （ primary ） The new exam Syllabus . Welder （ primary ） Pass the safety production simulation test and get familiar with the test environment in advance .

1、【 Single topic selection 】() It is represented by weld size symbol .（  A  ）

A、 Characteristic dimensions of groove and weld

B、 Root gap dimension

C、 Blunt edge

D、 Welding method

2、【 Single topic selection 】 The following () It is not a physical harmful factor produced in the welding process .（  C  ）

A、 Welding arc

B、 Thermal radiation

C、 Welding fume

D、 Radiation

3、【 Single topic selection 】 The following statement is correct ：（  C  ）

A、 The weld appearance quality reflects the welder's implementation of the process specification to a great extent

B、 The weld appearance quality reflects the welder's professional ethics to a great extent

C、 The weld appearance quality reflects the welder's operation skill level to a great extent

D、 The weld appearance quality reflects the welder's theoretical level to a great extent

4、【 Single topic selection 】 The following statement is correct ：（  D  ）

A、 Welders can install their own power supply , Repair the electric welding machine

B、 When the welder leaves the welding site temporarily , You don't have to cut off the power

C、 Due to the low output voltage of welding power supply , When the humidity of the welding site is high , There is no need for isolation protection

D、 Tools and other articles shall not be placed on the power supply shell of the electric welding machine

5、【 Single topic selection 】 AC through It can be converted to DC .（  A  ）

A、 rectification

B、 resistance

C、 inductance

D、 capacitance

6、【 Single topic selection 】 stay X In radiographic inspection , Tungsten is sandwiched on the film to present ().（  B  ）

A、 Oval black spots

B、 Irregular white bright blocks

C、 Dot or strip

D、 Regular black linear

7、【 Single topic selection 】 In the arrangement of electrons outside the nucleus , Usually use () To show the difference between the distance of moving electrons from the nucleus .（  D  ）

A、 Electronic cloud

B、 Speed of motion

C、 The amount of energy

D、 Electronic layer

8、【 Single topic selection 】 A blunt edge is left in the groove to prevent burn through , The size of the blunt edge shall ensure the first layer of weld ().（  B  ）

A、 Incomplete penetration

B、 Can weld through

C、 Not burned through

D、 Can burn through

9、【 Single topic selection 】 Install single gang switch control () When the circuit is , The phase line incoming switch must be realized .（  A  ）

A、 Incandescent lamp

B、 diode

C、 Flashlight

D、 Lathe lamp

10、【 Single topic selection 】 The root clearance is to ensure that the root ().（  C  ）

A、 Can't burn through

B、 Can burn through

C、 Able to weld through

D、 No penetration

11、【 Single topic selection 】 oxygen - When cutting acetylene , The thickness of the cutting workpiece is greater than 30 When bandits , Stop cutting , Backward inclination angle between cutting nozzle and workpiece （  B  ）

A、25°〜45°

B、5°〜10°

C、20°〜30°

D、10°〜15°

12、【 Single topic selection 】 The following are not the management methods of reusable materials ( ).（  C  ）

A、 Lease management

B、 Cost contracting management

C、 Quantity management

D、 Physical quantity contracting management

13、【 Single topic selection 】 Five fingers stretched straight , A hand signal indicating where the load should fall （）.（  C  ）

A、 The hook is lowered

B、 get set

C、 Indicate landing position

14、【 Single topic selection 】 The width of vehicle passage in the welding work area shall not be less than 3m, The pedestrian passage shall not be less than ().（  B  ）

A、1m

B、1.5m

C、2m

D、2.5m

15、【 Single topic selection 】 The key problem in the construction organization design scheme of shield structure is （）.（  D  ）

A、 Organize construction force

B、 Use the best facilities

C、 Ensure reliable quality

D、 Special safety plans and measures

16、【 Single topic selection 】 Welding procedure specification generally includes cover 、()、 Summary sheet of welding materials and joint welding process card .（  D  ）

A、 Welder code

B、 Welding time

C、 Welding location

D、 Connector number

17、【 Single topic selection 】 Factors affecting infant urine （）（  A  ）

A、 The temperature 、 Water consumption

B、 food

C、 mood

D、 sleep

18、【 Single topic selection 】 Respect for babies 、 The main ways of caring and caring do not include （） etc. .（  D  ）

A、 Nod 、 smile 、 Stroke 、 Hug

B、 smile 、 Stroke 、 Hug 、 Squat down and talk to the baby

C、 Listen carefully 、 Smile and communicate

D、 Finger exercises 、 Cross training with both hands

19、【 Single topic selection 】 Calculate the thermal efficiency of the boiler with the counter balance method n=q1=100%-q2-q3-q4-q5-q6,q1 representative ____（  A  ）

A、 The percentage of effectively utilized heat in the total heat delivered to the boiler

B、 The percentage of heat loss of exhaust gas in the heat sent to the boiler

C、 The heat loss of mechanical incomplete combustion accounts for the percentage of total heat sent into the boiler

20、【 Single topic selection 】 Hammer mill is suitable for grinding （）.（  A  ）

A、 Brown coal

B、 Anthracite

C、 Bituminous coal

21、【 Single topic selection 】 Socialist professional ethics should be embodied in （） This is the core .（  D  ）

A、 Collectivism

B、 communism

C、 Social responsibility

D、 Serve the people

22、【 Single topic selection 】 Special operation certificate , Every time （） Review once .（  C  ）

A、1 year

B、1 And a half years

C、2 year

D、3 year

23、【 Single topic selection 】 Temporary fire lane , Its width shall not be less than （）.（  A  ）

A、4m

B、6m

C、8m

D、10m

24、【 Single topic selection 】 Welding procedure qualification refers to the evaluation conducted to verify the correctness of the proposed welding procedure () And result evaluation .（  A  ）

A、 The test process

B、 A comprehensive discussion

C、 Computer simulation

D、 Comprehensive assessment

25、【 Single topic selection 】 The braking distance of a motor vehicle refers to when the motor vehicle suddenly steps on the brake pedal at the specified initial speed ,（）.（  C  ）

A、 The drag mark length of the tire on the road

B、 The sum of the drag mark length of the front wheel tire on the road and the drag mark length of the rearmost wheel tire on the road

C、 Touch the brake pedal from the foot ( Or touch the brake handle by hand ) The distance from when the vehicle starts to when the vehicle stops

26、【 Single topic selection 】 Welding is a widely used method () Connection method .（  C  ）

A、 Non permanent

B、 Fix

C、 Permanence

D、 solid

27、【 Single topic selection 】 cement 、 Galvanized steel pipes are suitable for storage in ( ).（  A  ）

A、 Warehouse

B、 Shed

C、 Stockyard

D、 Open-air

28、【 Single topic selection 】 According to the requirements of elevator installation process , For the adjustable guide rail support connected by bolts , After the adjustment is in place, the fastening nut shall be connected with the support （）.（  A  ）

A、 spot welding

B、 Fillet welding

C、 Continuous welding on both sides

D、 Single side continuous welding

29、【 Single topic selection 】 Secondary beam of mobile operation platform , The spacing should not be greater than （）：（  B  ）

A、35cm

B、40cm

C、45cm

D、50cm

30、【 Single topic selection 】 The welding arc voltage is ().（  A  ）

A、 As the arc length increases

B、 It decreases as the arc length increases

C、 As the arc static characteristic curve moves upward

D、 As the no-load voltage of the power supply increases

31、【 Single topic selection 】 The letters in the category name of the welding power supply model () Indicates arc welding rectifier .（  D  ）

A、A

B、X

C、B

D、Z

32、【 Single topic selection 】 The following is a comprehensive description of the construction project management department , The wrong is ( ).（  D  ）

A、 The construction project management department is the economic organization of the enterprise , The main responsibility is to manage various economic activities of the construction project

B、 The management function of the construction project management department is comprehensive , Include plans 、 organization 、 control 、 Coordinate 、 Command and other aspects

C、 The management business of the construction project management department is comprehensive , Horizontally, including people 、 goods 、 matter 、 Production and business activities , Vertically, it includes the main process of the life cycle of the construction project

D、 The construction project management department is under the leadership of multiple functional departments of the enterprise

33、【 Single topic selection 】 The shield excavated belt conveyor shall be equipped with （）.（  A  ）

A、 Protection and special personnel shall be responsible for

B、 Safety net

C、 Isolation belt

D、 The scaffold

34、【 Single topic selection 】 The lighting circuit consists of a watt hour meter 、 Main switch 、 Fuse 、()、 It is composed of bulbs and wires .（  A  ）

A、 switch

B、 Socket

C、 motor

D、 Contactor

35、【 Single topic selection 】 Gas metal arc welding , The defects not caused by craters are ().（  D  ）

A、 Blowholes

B、 Cold crack

C、 Hot crack

D、 Incomplete fusion

36、【 Single topic selection 】 Gas metal arc welding , Coarse drop transition is suitable for () The welding of .（  D  ）

A、 Position of horizontal rotation of thick wall large diameter pipe

B、 Horizontal fixed position of thick wall large diameter pipe

C、 Flat welding position of medium plate

D、 Flat welding position of thin plate

37、【 Single topic selection 】 The assessment and evaluation of the dynamic management behavior of safe production and civilized construction of construction enterprises should meet which of the following options （）.（  A  ）

A、 Enterprise qualification is due to safe production 、 Civilized construction is degraded , Then this item shall not be scored

B、 No safety inspection instrument has been established 、 Of instrument and tool allocation system , Then this item shall not be scored

C、 The annual excellent rate of safety and quality standardization is lower than the national or local regulations , The reduction score shall be evaluated on a case by case basis

D、 Subcontracting , The general contractor fails to formulate and supervise the implementation of the management system for the qualification of subcontractors and personnel , Then this item shall not be scored

38、【 Single topic selection 】 Gas metal arc welding , Wire feeding methods include push-pull wire feeding 、 Push wire and ().（  D  ）

A、 One piece

B、 Separate type

C、 Gooseneck

D、 Wire drawing

39、【 Single topic selection 】 The reasonable haul distance of the tire loader when transporting materials is （）.（  C  ）

A、30-80m

B、30-120m

C、50-100 m

D、70-150 m

40、【 Single topic selection 】 Arc stud welding is to ignite the arc between the stud to be welded and the workpiece , When the stud and workpiece are heated to the appropriate temperature , stay () Under action , The stud is fed into the welding pool on the workpiece to form a welded joint .（  D  ）

A、 temperature

B、 electric current

C、 voltage

D、 pressure

41、【 Single topic selection 】 Coal element , Ann whole Pass the production simulation exam at one point , The base carbon received in the elemental analysis component is （）.（  D  ）

A、 Fixed carbon

B、 Coke

C、 Carbon in carbide

D、 It consists of fixed carbon and carbon in carbide

42、【 Single topic selection 】 Technical standards for electric welding machines , Design of electrode arc welding power source () by 60%.（  C  ）

A、 The work efficiency

B、 Deposition rate

C、 Rated load duration

D、 Usage rate

43、【 Single topic selection 】 According to the movement form of electrode, resistance spot welding machine can be divided into vertical stroke spot welding machine and ().（  C  ）

A、 Fixed spot welder

B、 Variable frequency spot welder

C、 Arc lead spot welder

D、 Electric cam spot welder

44、【 Single topic selection 】 When carbon arc gouging , The arc length is too short to cause arc extinction .（  C  ）

A、 The groove is too narrow

B、 The groove is too wide

C、 Carbon inclusion

D、 Arc instability ）

45、【 Single topic selection 】 Before turning , The power supply of the elevator （）.（  B  ）

A、 Don't cut off

B、 Must be cut off

C、 Don't confirm

D、 Direct turning

46、【 Single topic selection 】 The microstructure obtained after high temperature tempering is ().（  C  ）

A、 Tempered martensite

B、 Tempered troostite

C、 Tempered sorbite

D、 Martensite

47、【 Multiple choice 】 The capacity of boiler is the basic characteristic parameter of boiler , General is to use ____ To express .（  AD  ）

A、 Evaporation capacity

B、 Water supply

C、 volume

D、 Thermal power

48、【 Single topic selection 】《 Management rules for the use of special equipment 》 Regulations , The maintenance of special equipment shall comply with （） requirement .（  D  ）

A、 Use

B、 Security

C、 regulatory

D、 Relevant safety technical specifications and instructions for use and maintenance

49、【 Single topic selection 】 When the wire rope end of electric hoist is fixed with pressing plate , The pressing plate shall not be less than （） individual .（  C  ）

A、1

B、2

C、3

D、4

50、【 Multiple choice 】 Fire extinguishing methods include ：（）.（  ABCD  ）

A、 Segregation

B、 Cooling

C、 Suffocation

D、 Chemical interruption method

51、【 Multiple choice 】 The main components involved in the safety of sightseeing vehicles are （）.（  ABD  ）

A、 Brakes

B、 tire

C、 sound

D、 Steering gear

52、【 Single topic selection 】 according to 《 Implementation rules of Guangdong Provincial Department of housing and urban rural development on standardized assessment of construction safety production 》 Regulations , Which of the following situations does a construction enterprise have （）, Reviewed and confirmed by the enterprise evaluation subject , And there is no objection to the publicity , The safety production standardization assessment conclusion is unqualified .（  D  ）

A、 The administrative department in charge of housing and urban rural construction or the safety supervision organization of construction project issues partial notice on the violation of laws and regulations on safe production of the project （ temporary ） Notice of shutdown or comprehensive shutdown rectification ; The construction enterprise fails to implement the rectification within the time limit without justified reasons

B、 The engineering projects undertaken by the enterprise in recent three years have a large or more or 2 One or more general production safety accidents

C、 The person in charge of the enterprise did not carry out shift inspection on the contracted project

D、 Due to the chaotic management of the construction site ; It is found that there are major potential safety hazards by the work safety supervision of the competent administrative department of housing and urban rural construction at or above the provincial level ; Ordered to stop work for rectification

53、【 Multiple choice 】 When the quality problems caused by construction have occurred ,( ).（  DE  ）

A、 Stop in time

B、 The construction unit is required to replace the unqualified materials immediately 、 equipment 、 Incompetent people

C、 Immediately change incorrect construction methods and operation processes

D、 Report to the project supervision organization

E、 The construction unit shall remedy the quality problems

54、【 Multiple choice 】 Pay attention to when using the rope clamp （）.（  ABC  ）

A、 The number and spacing are directly proportional to the diameter of the steel wire rope

B、 Generally, the minimum spacing of rope clamps is... Of the diameter of steel wire rope 6 times

C、 The number of rope clamps shall not be less than 3 individual

D、 After the wire rope is stressed, the rope clamp can move

E、 After the steel wire rope is stressed and deformed , To prevent further deformation , Do not tighten the rope clamp

55、【 Multiple choice 】 Mandatory standards for engineering construction are directly related to ( ) Mandatory provisions of engineering construction standards, etc .（  ABCD  ）

A、 Project quality

B、 Security

C、 health

D、 Environmental protection

E、 Manufacturing cost

56、【 Multiple choice 】 For construction enterprises , All links of project construction 、 Technical standards shall be formulated for all work contents , Include （  ABCDE  ）

A、 etc. .

B、 Construction procedures

C、 Quality acceptance criteria

D、 Material standards

E、 Test standard

F、 Inspection criteria

57、【 Single topic selection 】 Improve the safety production management system , Establish and improve the safety management system 、 The safety management organization and the safety production responsibility system are the organizations to realize the safety production objective management . Safety production mold I plan to pass the exam at one point .（）.（  B  ）

A、 effect

B、 Guarantee

C、 basis

D、 measures

58、【 Multiple choice 】 Among the following parameter units, the units used for thermal power are as follows ____.（  BE  ）

A、 Megajoule (MJ)

B、 mw (MW)

C、 MPa (MPa)

D、 Kilojoules (KJ)

E、 kw (KW)

59、【 Multiple choice 】 The common hydraulic torque converter consists of （） Other components .（  ABC  ）

A、 Pump wheel

B、 turbine

C、 Guide wheel

D、 Freewheel

60、【 Multiple choice 】 The maximum weighing value of the weighing instrument used for filling liquefied gas cylinders shall not be greater than the actual weight of the filled cylinders （ Including the self weight of gas cylinder and liquid filling weight ） Of （）, And not less than （）.（  AD  ）

A、1.5 times

B、2 times

C、2.5 times

D、3 times

61、【 Judgment questions 】()HS311 It's copper alloy welding wire .（  ×  ）

62、【 Judgment questions 】() Three phase squirrel cage asynchronous motor can be started by Y/△ The way .（  ×  ）

63、【 Judgment questions 】() Whether it's a working day or a rest day , Wearing work clothes is an encouraged good dress habit .（  ×  ）

64、【 Judgment questions 】 Although the car is slow , But the road conditions 、 The variability and uncertainty of the surrounding pedestrians and environment , This determines that there is a great danger in the parking lot .（）（  √  ）

65、【 Judgment questions 】() Double line drawing is a projection drawing showing only the outer contour of pipes and fittings .（  √  ）

66、【 Judgment questions 】 When employees find an emergency that directly endangers personal safety , Have the right to stop work or evacuate the workplace after taking possible emergency measures .（）（  √  ）

67、【 Judgment questions 】() Tempering can improve the toughness of steel while maintaining a certain hardness .（  √  ）

68、【 Judgment questions 】() In case of explosion hazard ' Latest analysis ' place , If there is good ventilation , Can reduce the concentration of explosive mixture , The hazard level of the site can be reduced .（  √  ）

69、【 Judgment questions 】 Personnel engaged in vehicle operation , Safety education shall be conducted once a quarter , The training examination is conducted every two years , The operation can be continued only after passing the examination .（）（  ×  ）

70、【 Judgment questions 】 Rented mechanical equipment, construction machines and tools and accessories , Must hold production license （ manufacture ） license 、 Product certificate .（）（  √  ）

71、【 Judgment questions 】() In the iron carbon equilibrium diagram ,PSK The line is eutectic reaction line , It indicates the temperature line of pearlite precipitation from austenite when iron carbon alloy cools slowly .（  ×  ）

72、【 Judgment questions 】（） After a special equipment accident , The accident unit and its personnel shall properly protect the scene of the accident and relevant evidence , Collect in time 、 Sort out relevant materials , Prepare for accident investigation .（  √  ）

73、【 Judgment questions 】 The on-site vehicles must be subject to regular inspection within the time limit specified by the Department in charge of special equipment , Failing to inspect as required or failing to pass the inspection , No driving .（）（  √  ）

74、【 Judgment questions 】 Activated carbon can not only adsorb free chlorine in water 、 organic compound , It can also effectively adsorb and filter suspended solids and colloids .（）（  √  ）

75、【 Judgment questions 】() Contactor is an automatic electromagnetic switch .（  √  ）

76、【 Judgment questions 】 Walking of cargo elevator door , Rumbling 、 Safety production simulation test 1 Diantong 、 Irrespective .（  ×  ）

77、【 Judgment questions 】《 Boiler safety technical supervision regulations 》 Regulations : Boiler water quality management system , The items and qualification standards for regular water and steam detection shall be specified ;（  √  ）

78、【 Judgment questions 】() Standard spot welding electrodes are used for single point projection welding . In order to reduce the indentation on the workpiece surface , The diameter of electrode contact surface shall not be less than twice the diameter of bump .（  √  ）

79、【 Judgment questions 】《 Special equipment operator certificate 》 Qualified after reexamination , The issuing department shall sign and seal the original certificate .（  √  ）

80、【 Judgment questions 】() Welding personnel shall pay special attention to the smooth ventilation system when working in a closed environment .（  √  ）

81、【 Judgment questions 】 There is... In the human body 20% Left and right lead is discharged from the body through hair and nail shedding .（）（  ×  ）

82、【 Judgment questions 】() Gas metal arc welding , The welding equipment does not need to ensure that , Stable flow of shielding gas .（  ×  ）

83、【 Judgment questions 】 The hydrostatic test pressure of the integrated valve body is 2.2MPa No leakage in case of .（  ×  ）

84、【 Judgment questions 】() Before welding electronic components, the lead wires of components should be bent into a certain shape in advance , Improve the shockproof and reliability of electronic equipment .（  √  ）

85、【 Judgment questions 】() Resistance butt welding machines can be divided into general butt welding machines and special butt welding machines according to their purposes .（  √  ）

86、【 Judgment questions 】 Each waterproof layer shall be constructed continuously , It is allowed that the construction of the plain ash layer and the mortar layer shall not be completed on the same day .（  ×  ）

87、【 Judgment questions 】 The implementation of standards refers to the organization 、 Planned 、 A campaign to implement standards in a measured way , It is standard management 、 The standard preparation and application parties implement the contents of the standard to the production 、 management 、 The process of service , Is one of the purposes of standardization , Of great significance .（  √  ）

88、【 Judgment questions 】() When DC voltmeter is used , The voltmeter is connected in series with the circuit under test , The range of voltmeter is determined by the voltage doubling resistance in series .（  ×  ）

89、【 Judgment questions 】() The overall dimensions in the assembly drawing represent the machine （ Or parts ） The total length of 、 Overall width and overall height dimensions .（  √  ）

90、【 Judgment questions 】() horn ’ Safety student The production simulation test is a little through ’ The allowable range of undercut defects on the weld surface is ： depth ≤1mm.（  ×  ）

91、【 Judgment questions 】 The radiant heat absorption of the furnace can not meet the requirements of evaporation heat absorption , Other evaporation heating surfaces must be supplemented , Convection evaporation tube bundle is often used .（）（  √  ）

92、【 Judgment questions 】 After the accident , Relevant units and personnel shall properly protect the accident scene and relevant evidence .（）（  √  ）

93、【 Judgment questions 】 The protection of the opening of the construction site refers to the passage opening 、 Door window 、 The stairway 、 Protection of elevator entrance .（）（  ×  ）

94、【 Judgment questions 】() Brazing uses some metals whose melting point is higher than the base metal as brazing filler metal , Heat the weldment and solder to a temperature higher than the melting point of solder , But the temperature below the melting point of the base metal , Wet the base metal with liquid solder , Method of filling joint gap and mutual diffusion with base metal to realize connecting weldment .（  ×  ）

95、【 Judgment questions 】02 Is the elemental symbol of the oxygen atom ,HO It's the molecular formula of water .（  ×  ）

96、【 Judgment questions 】P Is the elemental symbol of sulfur ,S It's the elemental symbol for phosphorus .（  ×  ）

97、【 Judgment questions 】 Element refers to the general name of the same kind of atoms with different nuclear charge numbers .（  ×  ）

98、【 Judgment questions 】 Workers through labor , While improving your life , It also works for the construction of the country .（  √  ）

99、【 Judgment questions 】 The working principle of DC contactor and AC contactor is the same .()（  √  ）

100、【 Judgment questions 】 Magnetic bias blowing is directly related to the current , In order to reduce magnetic bias blowing , The welding current can be appropriately reduced .（  √  ）

Support accurate welding in all regions of the country （ primary ） Examination questions , Support safety certificate , Special operation certificate , Exercises on the question bank of vocational skill appraisal and other types of work .