2021 Shanghai safety officer C certificate examination registration and analysis of Shanghai safety officer C certificate search

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

Pass the safety production simulation exam at one point ： Shanghai Safety Officer C The registration of certificate examination is a set of Shanghai safety officers generated from the general question bank of one point pass of safety production simulation examination C Analysis of evidence finding , Pass the safety production simulation examination to Shanghai safety officer at one o'clock C Certificate operation mobile phone synchronous practice .2021 Shanghai Safety Officer C Certificate examination registration and Shanghai safety officer C Analysis of evidence finding

1、【 Multiple choice 】 The key points of safe power use organization measures include ：（）.（  ABCDE  ）

A、 Establish power consumption organization design system

B、 Establish technical disclosure system

C、 Establish safety self inspection system

D、 Establish electrician installation 、 On-Site Inspection 、 maintenance 、 Demolition system

E、 Establish a safety training system and a safe electricity responsibility system

2、【 Multiple choice 】 When using pre assembled large wall formwork , It is forbidden to lift two formworks at the same time , And should （） Then the hook can be removed .（  ABCE  ）

A、 Side in place

B、 Edge correction

C、 Edge connection

D、 While aligning

E、 Completely fixed

3、【 Multiple choice 】 The basic structure of shield includes （） Other parts .（  ACE  ）

A、 Shield shell

B、 Connect the system

C、 Propulsion system

D、 Transmission system

E、 Assembly system

4、【 Multiple choice 】 according to 《 Safe production method 》 Regulations , The supervisors and inspectors of work safety shall （）.（  ADE  ）

A、 Be devoted to one's duty

B、 Strengthen the learning

C、 Keep track of

D、 Stick to the principle

E、 Enforce the law impartially

5、【 Multiple choice 】 according to 《 Main person in charge of the construction enterprise 、 Regulations on safety production management of project leader and full-time safety production management personnel 》, The full-time safety production management personnel of machinery can be engaged in （） And other work safety management .（  BCD  ）

A、 Construction machinery

B、 Hoisting machinery

C、 Earthwork machinery

D、 Piling machinery

E、 Transport machinery

6、【 Multiple choice 】 Welding is an advanced and high productivity metal processing technology , Welding is done by heating or pressing , Or both , A processing method to combine weldments . have （） Other advantages .（  ABCD  ）

A、 Save materials

B、 Save time

C、 Good weldability

D、 Long service life

E、 Easy to operate

7、【 Multiple choice 】 Foundation pit engineering is made up of （） And other parts of the system engineering .（  BCDE  ）

A、 Slope structure

B、 Retaining structure

C、 Anchor structure

D、 Earth excavation

E、 Foundation pit dewatering

8、【 Multiple choice 】 After the foundation pit is excavated, the soil between the piles of the retaining row piles shall be protected , According to different situations , use （） And other treatment methods for protection , Prevent the earth between piles from collapsing and hurting people .（  ABE  ）

A、 Bricklaying

B、 Plugboard

C、 Cover net

D、 brace

E、 Hang a net and spray ( Or wipe ) Fine aggregate concrete

9、【 Multiple choice 】 The fire extinguishers commonly used in the construction site have （）.（  ABCDE  ）

A、 The pool

B、 Fire bucket

C、 Fire shovel

D、 Fire ditch

E、 Fire extinguisher

10、【 Multiple choice 】 The quality inspection of fasteners shall include （） Equal index .（  ACDE  ）

A、 stiffness

B、 toughness

C、 Skid resistance

D、 tensile

E、 Resistance to damage

11、【 Multiple choice 】 Soft soil according to its sedimentary environment , It can be roughly divided into （） Other types .（  ABCE  ）

A、 Coastal deposits

B、 Lake deposits

C、 Beach deposits

D、 River bottom sedimentation

E、 Swamp deposit

12、【 Multiple choice 】 External scaffold 、 The frame body of formwork support should be set up with non combustible or flame retardant materials , among , External scaffolding for the following works 、 The frame body of formwork support shall be erected with incombustible materials （）.（  AE  ）

A、 Reconstruction of existing buildings

B、 Multi storey buildings

C、 factory building

D、 Steel structure building

E、 High rise building

13、【 Multiple choice 】 In violation of the 《 Special equipment safety law 》 Regulations ,（） Failure to perform post responsibilities , Violation of operating procedures and relevant safety rules and regulations , Causing an accident , Disqualification of relevant personnel .（  ACD  ）

A、 Special equipment safety management personnel

B、 Person in charge of equipment

C、 Testing personnel

D、 Operators

E、 Mechanic

14、【 Multiple choice 】 according to 《 Regulations of Shanghai Municipality on work safety 》 Regulations , In production and operation activities , Employees shall perform ：（）.（  ABCDE  ）

A、 Strictly abide by the safety production rules, regulations and operating procedures of the unit

B、 Correctly use labor protection articles

C、 Receive safety production education and training

D、 Report accident hidden dangers and unsafe factors in time

E、 law 、 Other obligations stipulated by laws and regulations

15、【 Multiple choice 】 The construction unit shall prepare safety technical measures and temporary power consumption scheme on the construction site in the construction organization design , Yes （） Prepare special construction plan , Safety check results are attached , Approved by the technical director of the construction unit 、 It shall be implemented after being signed by the chief supervision engineer , On site supervision shall be carried out by full-time safety production management personnel .（  ABCDE  ）

A、 Foundation pit support and dewatering engineering

B、 Earth excavation works

C、 Formwork works

D、 Hoisting works

E、 Scaffolding works

16、【 Multiple choice 】 according to 《 Safety technical specification for hydraulic lifting integral scaffold 》 Regulations , Hydraulic lifting integral scaffold body and attached support mechanism （） Must meet the technical requirements , Fall arrest devices must be sensitive 、 Reliable braking , The anti overturning device must be stable 、 Safe and reliable .（  ACD  ）

A、 Strength

B、 verticality

C、 stiffness

D、 stability

E、 entirety

17、【 Multiple choice 】 according to 《 Technical code for safety of temporary electricity on construction site 》 Regulations ：（） Or the height of the lamp from the ground is lower than 2.5m Lighting in places such as , The power supply voltage shall not be greater than 36W.（  ABCD  ）

A、 Tunnel

B、 Civil air defense project

C、 The high temperature

D、 Conductive dust

E、 The system of rewards and punishments

18、【 Single topic selection 】 The internal climbing operation shall be carried out during the day . The wind exceeds （） when , The operation should be stopped .（  B  ）

A、4 level

B、5 level

C、6 level

D、7 level

19、【 Single topic selection 】 The construction unit purchases 、 Rental safety protection equipment 、 Machinery and equipment 、 Construction machinery and accessories , Should have the ability to produce ( manufacture ) license 、 Product certificate , And in （） Check .（  B  ）

A、 Before transportation

B、 Before entering the construction site

C、 Before using

D、 In the use

20、【 Single topic selection 】 In the construction electricity inspection scoring table , The working grounding resistance is greater than 4Ω, The repeated grounding resistance is greater than 10Ω, buckle （）.（  D  ）

A、8 branch

B、10 branch

C、15 branch

D、20 branch

21、【 Single topic selection 】 The bulldozer is in the deep ditch 、 When working in foundation pit or steep slope area , There should be a specially assigned person to command , The height of vertical slope shall be less than （）.（  B  ）

A、1m

B、2m

C、3m

D、4m

22、【 Single topic selection 】 Civilized construction inspection scoring table , No dust prevention measures have been taken at the construction site , buckle （）.（  C  ）

A、2 branch

B、3 branch

C、5 branch

D、8 branch

23、【 Single topic selection 】 First excavate the earthwork in the middle of the foundation pit , During excavation, a basin like soil mass is formed in the middle of the foundation pit , Then excavate the soil around the foundation pit , This method of excavation is often called （）.（  D  ）

A、 Section excavation

B、 Island excavation

C、 Excavation in layers

D、 Basin excavation

24、【 Single topic selection 】 The pumps used in general industrial production are mostly （）.（  D  ）

A、 Reciprocating ( Piston type ) Water pump

B、 Rotary water pump

C、 Propeller pump

D、 Centrifugal pump

25、【 Single topic selection 】 Falling height datum （） And above when carrying out edge operation , Protective railings shall be set on the free side , It shall be closed with dense mesh safety vertical net or tool type breast board .（  D  ）

A、1.5m

B、1、6m

C、1、8m

D、2m

26、【 Single topic selection 】 The work at height is under inspection and scoring , The safety belt does not meet the requirements , Deduction per person （）.（  A  ）

A、5 branch

B、10 branch

C、15 branch

D、20 branch

27、【 Single topic selection 】 according to 《 Industrial injury insurance regulations 》 The provisions of the , In working hours and positions , Die of a sudden illness or in （） Died after ineffective rescue within , Treat as a work-related injury .（  C  ）

A、12h

B、24h

C、48h

D、72h

28、【 Single topic selection 】 according to 《 Regulations on management of special operation personnel in construction 》 The examination and issuing authority shall, from the date of completion of the examination （） Announce the assessment results within working days .（  C  ）

A、3 individual

B、5 individual

C、10 individual

D、15 individual

29、【 Single topic selection 】 The lifting inspection score is medium , The specification of steel wire rope does not meet the requirements of crane product manual , buckle （）.（  B  ）

A、5 branch

B、10 branch

C、15 branch

D、20 branch

30、【 Single topic selection 】 The distance from the installation position of the upper limit stop to the lowest part of the roof beam shall not be less than （）.（  D  ）

A、2m

B、2.5m

C、2.8m

D、3m

31、【 Single topic selection 】 Set up the height （） And above floor type steel pipe scaffolds belong to sub divisional and subdivisional works with great danger .（  D  ）

A、15m

B、18m

C、20m

D、24m

32、【 Single topic selection 】 from 2011 year 1 month 1 The date of , according to 《 Industrial injury insurance regulations 》 The provisions of the , Death of employees caused by production safety accidents , The standard of one-time work death subsidy is adjusted to be... Of the per capita disposable income of urban residents in the previous year （） Calculation , Distributed to close relatives of employees who died at work .（  C  ）

A、10 times

B、15 times

C、20 times

D、25 times

33、【 Single topic selection 】 The work at height is under inspection and scoring , Fail to wear safety helmet according to standard , Deduction per person （）.（  B  ）

A、1 branch

B、2 branch

C、3 branch

D、4 branch

34、【 Single topic selection 】（） Without a foothold or a firm foothold , Work at height .（  C  ）

A、 Working on the edge

B、 Work at the entrance of the cave

C、 Working in the air

D、 Climbing homework

35、【 Single topic selection 】（） It's the most commonly used , The most abundant sources , The most convenient extinguishing agent .（  C  ）

A、 Foam extinguishing agent

B、 Carbon dioxide fire extinguishing agent

C、 water

D、 Chemical dry powder

36、【 Single topic selection 】 Electric welding machines can be divided into AC welding machines according to the structural principle , DC welding machine and （） Three types of .（  B  ）

A、 Electroslag pressure welding machine

B、 Inverter welding machine

C、 Butt welding machine

D、 mash welder

37、【 Single topic selection 】 The anti falling safety device can only be used within the valid calibration period , The valid inspection and calibration period shall not exceed （）.（  B  ）

A、 Half a year

B、 A year

C、 Two years

D、 Three years

38、【 Single topic selection 】 according to 《 Regulations on work safety license 》 Regulations , The work safety license needs to be extended upon expiration , The enterprise shall （） Go through the extension formalities with the original work safety license issuing and management authority .（  A  ）

A、3 Months

B、2 Months

C、1 Months

D、 Half a month

39、【 Single topic selection 】 according to 《 Industrial injury insurance regulations 》 The provisions of the , From the date when the appraisal conclusion of labor ability is made （） after , Injured workers or their close relatives 、 The work unit or handling agency considers that the disability situation has changed , You can apply for reexamination and appraisal of labor ability .（  D  ）

A、1 Months

B、3 Months

C、 Half a year

D、 A year

40、【 Single topic selection 】 according to 《 Opinions on further standardizing the reporting, investigation and handling of production safety accidents in housing construction and municipal engineering 》,（） It means causing 30 More than people died , perhaps 100 More than people are seriously injured , perhaps 1 Accidents with direct economic losses of more than 100 million yuan .（  D  ）

A、 General accidents

B、 Major accident

C、 Major accident

D、 Especially serious accident

41、【 Single topic selection 】 according to 《 Regulations on the administration of safe production of construction projects 》 Regulations , For the deep foundation pit involved in the project 、 Underground excavation works 、 Special construction scheme for tall formwork works , The construction unit shall also organize （） Demonstrate 、 review .（  D  ）

A、 The person in charge of the enterprise

B、 Project leader

C、 Head of security

D、 Experts

42、【 Single topic selection 】 according to 《 Regulations on the administration of safe production of construction projects 》 Regulations , The main person in charge of the construction unit shall be responsible for the safety production work of the unit according to law （）.（  B  ）

A、 Take overall responsibility

B、 Take full responsibility

C、 Take leadership responsibility

D、 Responsible for supervision

43、【 Single topic selection 】 according to 《 Regulations on the administration of safe production of construction projects 》 Regulations , Construction projects in urban areas , The construction unit shall be responsible for the construction site （）.（  A  ）

A、 Implement closed enclosure

B、 Demarcation line

C、 Fencing

D、 Set a restricted area

44、【 Single topic selection 】 according to 《 Fire safety technical specification for construction site of construction project 》 Regulations , welding 、 cutting 、 Before hot work such as baking or heating , The combustibles on the operation site shall be cleaned ; Combustibles that cannot be removed from the operation site and its vicinity , Should use （） Cover or isolate it .（  B  ）

A、 Insulation materials

B、 Non combustible materials

C、 Insulation material

D、 Flame retardant dense mesh

45、【 Single topic selection 】 according to 《 Technical code for safety in use of construction machinery 》 Regulations , Before using the construction elevator , A fall test shall be carried out . After the anti falling safety device is tested and in normal operation , Every time an anti falling action occurs , It should be carried out by professionals （）.（  D  ）

A、 debugging

B、 Check

C、 Record

D、 Reset

46、【 Single topic selection 】 according to 《 Regulations on safety supervision and administration of construction hoisting machinery 》, According to the safety technical standards and the performance requirements of building hoisting machinery , Prepare the installation of building hoisting machinery 、 Special construction scheme for demolition works , And by the unit （） Sign .（  D  ）

A、 The person in charge of the enterprise

B、 Project leader

C、 Construction worker

D、 Technical director

47、【 Single topic selection 】 according to 《 Unified code for safety technology of building construction 》 Regulations , The safety technical disclosure shall be recorded in writing , Both parties to the disclosure shall go through the signing procedures , The written record shall be in （） For future reference .（  D  ）

A、 The Discloser 、 The Discloser

B、 The Discloser 、 Safety Manager

C、 The Discloser 、 The discloser and technical administrator

D、 The Discloser 、 The person to be disclosed and the safety manager

48、【 Single topic selection 】 according to 《 Unified code for safety technology of building construction 》 Regulations , Construction unit 、 Construction unit 、 After the completion of the project or the completion of relevant safety technical activities, the supervision unit and other units 30 Days. , The safety technical documents shall be submitted to （） Filing in the archives , The retention period of archives shall not be less than 1 year .（  A  ）

A、 Unit

B、 Construction unit

C、 Construction unit

D、 construction control unit

49、【 Single topic selection 】 according to 《 Safety technical specification for construction work at height 》 Regulations , When the safety protection shed is set up for the passage of non motor vehicles , The height from the shed bottom to the ground shall not be less than （）.（  D  ）

A、2m

B、2.5m

C、2.8m

D、3m

50、【 Single topic selection 】 according to 《 Regulations on the administration of work safety license of construction enterprises 》, The period of validity of the work safety license is （）.（  C  ）

A、1 year

B、2 year

C、3 year

D、4 year

51、【 Single topic selection 】 according to 《 Safety technical code for bowl buckle steel pipe scaffold in building construction 》 Regulations , The scaffold formwork support frame shall be erected first 、 Rear horizontal bar 、 Then the inclined rods are erected in sequence to form the basic frame unit , The basic frame unit shall be arranged one by one 、 Layer by layer expansion and erection to form an integral support frame system , The erection height of each floor should not be greater than （）.（  A  ）

A、3m

B、3.5m

C、4m

D、4.5m

52、【 Single topic selection 】 according to 《 Regulations on safety management of steel pipe fasteners at construction site 》, The wall thickness of steel pipes used for material stacking, separation or protective railings in construction in progress shall not be less than （）.（  C  ）

A、2.25mm

B、2.5mm

C、2.75mm

D、3.5mm

53、【 Single topic selection 】 according to 《 Regulations of Shanghai Municipality on the administration of civilized construction of construction projects 》, Any unit or individual finds that the construction activities violate the provisions , Can be directed to （） complaints .（  D  ）

A、 construction control unit

B、 Construction unit

C、 Business Administration Department

D、 Construction administration department

54、【 Single topic selection 】 according to 《 Special equipment safety law 》 Regulations , The user of special equipment shall comply with the requirements of safety technical specifications , Before the expiration of the validity period of the inspection （） Propose regular inspection requirements to special equipment inspection institutions .（  D  ）

A、5 God

B、10 God

C、15 God

D、1 Months

55、【 Single topic selection 】 Diameter of drum and pulley used with hemp rope , When maneuvering, it shall be greater than... Of the hemp rope diameter 30 times ; When using manpower , It shall be larger than the diameter of hemp rope （）.（  D  ）

A、3 times

B、5 times

C、8 times

D、10 times

56、【 Single topic selection 】 The diameter or width of the sump , It's usually （）, Its depth increases with the deepening of excavation .（  D  ）

A、0.4～0.6m

B、0.4～0.8m

C、0.5～0.8m

D、0.6～0.8m

57、【 Single topic selection 】 The transmission modes of crawler crane are （）.（  C  ）

A、 A kind of

B、 Two kinds of

C、 Three

D、 Four kinds of

58、【 Single topic selection 】 Fire extinguisher 、 Temporary fire water supply system 、 Fire emergency lighting 、 Evacuation indication signs 、 Temporary evacuation routes are collectively referred to as （）.（  D  ）

A、 Fire fighting configuration

B、 Fire fighting elements

C、 Fire fighting facilities

D、 Temporary fire fighting facilities

59、【 Judgment questions 】 according to 《 Regulations on the administration of safe production of construction projects 》 Regulations , The construction unit shall carry out safety production education and training for management personnel and operation personnel at least once a year , The education and training shall be recorded in the personal work file .（）（  √  ）

60、【 Judgment questions 】 according to 《 Technical code for safety of hoisting in building construction 》 Regulations , Before homework , The crane pulley used for lifting shall be checked 、 Sling 、 Snap ring and floor lock, etc , It shall be ensured that it is in good condition , Meet safety requirements .（）（  √  ）

61、【 Judgment questions 】 according to 《 Code for safety management of divisional and subdivisional works with high risk 》 Regulations , All parties involved in the construction project shall, according to their respective responsibilities , Jointly formulate the safety management system for divisional and subdivisional works with high risk and their major hazard sources , Clarify safety management responsibilities and authorities , Specify management processes and requirements .（）（  ×  ）

62、【 Judgment questions 】 according to 《 Technical code for safety in use of construction machinery 》 Regulations , When the hopper is lifted , When cleaning or maintenance is required under the hopper , The hopper shall be lifted to the top dead center , And it must be locked firmly with safety pin or hung firmly with safety chain .（）（  √  ）

63、【 Judgment questions 】 according to 《 Regulations on the administration of safe production of construction projects 》 Regulations , Reach the standard of a certain scale of divisional and subdivisional works with high risk , Formulated by the Ministry of construction .（）（  ×  ）

64、【 Judgment questions 】 according to 《 Personnel allocation guide for key positions of project management organization in construction site of Shanghai Construction Enterprises 》 Regulations , Construction worker 、 Security Officer 、 The materialman is 2 More than one person , It should be equipped reasonably according to the specialty .（）（  ×  ）

65、【 Judgment questions 】 according to 《 Safe production method 》 Regulations , Two or more production and business operation units carry out production and business operation activities in the same operation area , May endanger the production safety of the other party , A work safety management agreement should be signed , Clarify their respective safety production management responsibilities and safety measures that should be taken , And appoint full-time safety production management personnel to conduct safety inspection and coordination .（）（  √  ）

66、【 Judgment questions 】 according to 《 Technical code for safety of temporary electricity on construction site 》 Regulations ,TN The protective zero line in the system can only be repeatedly grounded at the distribution room or general distribution box .（）（  ×  ）

67、【 Judgment questions 】 according to 《 Personnel allocation guide for key positions of project management organization in construction site of Shanghai Construction Enterprises 》 Regulations , Personnel in key positions of the project management organization shall be those who establish direct labor relations with the construction unit .（）（  √  ）

68、【 Judgment questions 】 according to 《 Main person in charge of the construction enterprise 、 Regulations on safety production management of project leader and full-time safety production management personnel 》, Full time safety production management personnel , It refers to the personnel who are full-time engaged in safety production management in the enterprise , Including the personnel of the safety production management organization of the enterprise and the personnel engaged in the safety production management of the project .（）（  √  ）

69、【 Judgment questions 】 During the maintenance and repair of the construction elevator , The lighting fixtures used must be 24V Below the safe voltage , And check the running light lead 、 protection cover 、 Ensure the safety of lighting fixtures .（）（  ×  ）

70、【 Judgment questions 】 according to 《 Opinions on the implementation of the assessment of special construction operators 》 Regulations , Assessment of safe operation skills of special construction operations 70 Classified as qualified .（  √  ）

71、【 Judgment questions 】 according to 《 Regulations on the administration of safe production of construction projects 》 Regulations , The construction unit shall be responsible for the adjacent buildings that may be damaged due to the construction of the construction project 、 Structures and underground pipelines, etc , Special protective measures should be taken .（  ×  ）

72、【 Judgment questions 】 according to 《 Regulations on the administration of safe production of construction projects 》 Regulations , The construction unit shall provide safety protective equipment and safety protective clothing to the operators , And inform the operating procedures of dangerous posts and the hazards of illegal operation in writing .（  √  ）

73、【 Judgment questions 】 according to 《 Fire safety technical specification for construction site of construction project 》 Regulations , The special fire distribution line shall be connected from the lower end of the main circuit breaker of the main distribution box on the construction site , And shall maintain uninterrupted power supply .（  ×  ）

74、【 Judgment questions 】 according to 《 Construction law 》 Regulations , Contracting units are prohibited from subcontracting all construction projects contracted by them to others , Contracting units are prohibited from dismembering all construction projects they have contracted and then subcontracting them to others in the name of subcontracting .（  √  ）

75、【 Judgment questions 】 according to 《 Technical code for safety in use of construction machinery 》 Regulations , The lifting weight reaches the rated lifting capacity 90％ When above , Do not lower the boom , It is forbidden to perform two or more operations at the same time .（  √  ）

76、【 Judgment questions 】 according to 《 Technical specification for building foundation pit support 》 Regulations , Supporting structure with anchor bolt or support , When the demolition conditions specified in the design are not met , It is forbidden to remove the anchor rod or support .（  √  ）

77、【 Judgment questions 】 according to 《 Technical code for safety of hoisting in building construction 》 Regulations , Luffing indicator of crane 、 Safety protection devices such as torque limiter and limit switch , Must be complete 、 Flexible and reliable , The limit device can be used instead of the operating mechanism .（  ×  ）

78、【 Judgment questions 】 according to 《 Safety technical specification for construction work at height 》 Regulations , Do not use seat plate single person spreader for high-altitude operation , You can use a homemade hanging basket .（  ×  ）

79、【 Judgment questions 】 according to 《 Regulations of Shanghai Municipality on work safety 》 Regulations , The work safety supervision department shall strengthen the construction of law enforcement team , Carry out administrative law enforcement according to law . The special supervision department shall allocate law enforcement forces commensurate with its supervision and management .（  √  ）

80、【 Judgment questions 】 according to 《 Regulations of Shanghai Municipality on the administration of civilized construction of construction projects 》, The civilized construction of construction sites in key areas of the city is required , The enclosure should be simple in design 、 Beautiful and harmonious with the surrounding environment , The height shall not be less than 2.5 rice .（  √  ）

81、【 Judgment questions 】 according to 《 Measures of Shanghai Municipality on the prevention and control of dust pollution 》, In central city 、 New town 、 Central town 、 Tourist area （ spot ） Units and individuals that transport materials that are prone to dust pollution within the scope , Sealed vehicles shall be used for transportation .（  √  ）

82、【 Judgment questions 】 according to 《 Technical code for safety of temporary electricity on construction site 》 Regulations , For concrete mixer 、 Reinforcement processing machinery 、 Woodworking machinery 、 Shield machinery and other equipment shall be cleaned 、 Check 、 During maintenance , The switch box must be switched off first , Render visible power breakpoints , And close the door and lock it .（  √  ）

83、【 Judgment questions 】 Welding operation and cooperation personnel must wear labor protection articles as required .（  √  ）

84、【 Judgment questions 】 The excavation depth of foundation pit is greater than 12m Or when the foundation pit adopts the combination of supporting structure and main body , It belongs to class I safety level foundation pit engineering .（  ×  ）

85、【 Judgment questions 】 The building height is greater than 24m Or the monomer volume exceeds 30000m³ Construction in progress , Temporary outdoor fire water supply system shall be set .（  ×  ）

86、【 Judgment questions 】 The AC welding machine is actually an AC transformer , It is the simplest and most commonly used arc welding machine .（  √  ）

87、【 Judgment questions 】 Excavation of side slope earthwork , Do not cut the slope toe , Prevent slope instability ; When the slope is steeper than 1／3, Or in soft soil areas , Do not pile soil on the upper side of the excavation .（  ×  ）

88、【 Judgment questions 】 Combustible material storage yard and its processing yard 、 The warehouse of inflammable and explosive dangerous goods can be arranged under the overhead power line .（  ×  ）

89、【 Judgment questions 】 The fastener scaffold must be provided with longitudinal support 、 Horizontal and vertical bars , The intersection of the three rods is connected with each other by rotating fasteners 、 And should be as close as possible to , The buckle joint close to the three rods is called the main node of the fastener scaffold .（  ×  ）

90、【 Judgment questions 】 The butt fasteners of the vertical pole shall be staggered , The joints of two adjacent vertical poles shall be set within the same step .（  ×  ）

91、【 Judgment questions 】 Ladders are not allowed for temporary evacuation routes .（  ×  ）

92、【 Judgment questions 】 When the temporary evacuation passage is set on the scaffold , The scaffold shall be erected with incombustible materials .（  √  ）

93、【 Judgment questions 】 Temporary fire-fighting facilities shall be set up simultaneously with the construction of projects under construction .（  √  ）

94、【 Judgment questions 】 The net width of evacuation stairs in temporary rooms shall be less than that of evacuation walkways .（  ×  ）

95、【 Judgment questions 】 Category of power incoming line of leakage protector ( Phase line or zero line ) It must correspond to its incoming end mark one by one , Cross mixing is not allowed , It is not allowed to PE Line as N The line is connected to the leakage protector .（  √  ）

96、【 Judgment questions 】 The low-voltage overhead line in the construction site can be directly tied to the pole 、 tree 、 On the scaffold , Do not drag on the ground .（  ×  ）

97、【 Judgment questions 】 Electric equipment on construction site 5 One or more or the total capacity of the equipment is 50kW And above , Power consumption organization design shall be prepared , And shall be prepared by electrical engineering technicians , It shall be implemented after being reviewed by relevant departments and approved by the technical director of the enterprise with legal personality .（  √  ）

98、【 Judgment questions 】 Although bulldozers are widely used , However, due to the limitation of blade capacity , The distance of pushing and transporting soil should not be too long , Therefore, it is a short haul earthwork construction machinery .（  √  ）

99、【 Judgment questions 】 When bulldozers work in hard soil or rocky soil , Blasting or scarifying with scarifier shall be carried out first .（  √  ）

100、【 Judgment questions 】 Temporary fire water supply system on site in severe cold and cold areas , Anti freezing measures shall be taken .（  √  ）

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