2022 safety officer-b certificate work certificate title and online simulation examination

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

2022 Security Officer -B The certificate training question is safety officer -B Selected question bank of card review questions ！2022 Annual safety officer -B The title of work license and online simulation examination are based on the safety officer -B The examination question bank of the new version of the certificate . Security Officer -B The certificate examination materials can be used to practice all the question banks at any time according to the safety production simulation examination .

1、【 Multiple choice 】《 Safe production method 》 Article 67 : The Department responsible for the supervision and administration of production safety shall make a decision on the production and business operation entities with major potential accidents according to law ( ) Decision , The production and business operation entities shall carry out according to law , Eliminate potential accidents in time .（  ABC  ）

A、 Stop production or business

B、 Stop construction

C、 Stop using facilities or related equipment

D、 Stop the water supply

2、【 Multiple choice 】 The following safety technical requirements for hoisting of reinforced concrete structures , It's true that ( ).（  ABD  ）

A、 Before component lifting , Its strength must meet the design requirements

B、 floor 、 After the roof panel is hoisted , There are gaps and holes between or on each other , Cover plate and enclosure shall be provided

C、 For multi span single storey plant, the main span should be hoisted first , Rear crane auxiliary span ; Lift the low span first , Rear crane high span

D、 The middle of the workshop should be hoisted first , Hang back on both sides , Then hang the corner , And must be carried out symmetrically

3、【 Multiple choice 】 Which of the following are potential safety hazards rectification “ armed ” The content of the principle ？（  BCD  ）

A、 make a plan

B、 Fixed personnel

C、 Set the time

D、 Specific measures

4、【 Multiple choice 】 The safety expenses of construction projects shall be used for ( ), It shall not be used for other purposes .（  ABC  ）

A、 Procurement and updating of construction safety protection appliances and facilities

B、 Implementation of safety construction measures

C、 Improvement of safety production conditions

D、 Salary and welfare of safety management personnel

5、【 Multiple choice 】 Production and business operation entities shall have the capital investment necessary for production safety , from ( ) Guarantee .（  DE  ）

A、 Local people's governments at or above the county level

B、 The competent department responsible for the supervision of work safety

C、 Financial department of production and business operation unit

D、 The decision-making body of the production and operation unit 、 Principal Responsible Person

E、 Individual investors

6、【 Single topic selection 】《 Circular of the State Council on Further Strengthening the work of production safety in enterprises 》（ Guo fa （2010）23 Number ） It is stipulated that major production safety responsibility accidents occur in enterprises , Investigate the responsibility of the main person in charge of the accident enterprise ; Breaking the law , Investigate the main person in charge of the accident enterprise or ( ) And the legal responsibility of the person in charge of the superior enterprise .（  B  ）

A、 Enterprise contractor

B、 The actual controller of the enterprise

C、 Business partners

D、 Enterprise shareholder

7、【 Single topic selection 】《 Safe production method 》 Regulations , Special operation personnel must receive special safety operation training . Obtain special operation ( ) certificate , Before starting work .（  A  ）

A、 Operation qualification

B、 The license

C、 Security

D、 Position

8、【 Single topic selection 】《 Technical specification for building foundation pit support 》（JGJ120-2012） Regulations : The excavation of soft soil foundation pit shall be carried out according to ( )、 symmetry 、 equilibrium 、 The principle of timely excavation .（  A  ）

A、 layered 、 piecewise

B、 layered

C、 piecewise

D、 All

9、【 Single topic selection 】 The following are the main materials on the construction site 、 Description of stacking of semi-finished products , What's not right is ( ).（  D  ）

A、 Large tools , We should meet at one end .

B、 The sand shall be stacked in square , Stones shall be stacked into squares according to different particle size specifications .

C、 The concrete component stacking yard shall be solid 、 smooth , By specification 、 Model stacking .

D、 Various formworks shall be stacked neatly according to specifications , The ground shall be flat and solid , Generally, the stacking height should not be too high 2.6m, Large formwork shall be stored on specially designed storage rack .

10、【 Single topic selection 】 Employees in the process of operation , The safety production rules, regulations and operating procedures of the project shall be strictly observed , Obey management , Wear and use correctly ( ).（  B  ）

A、 Labor production supplies

B、 Labor protection articles

C、 Labor identification

D、 Tools of labor

11、【 Single topic selection 】 Following conditions , What should be scrapped is ( ).（  A  ）

A、 Crack or broken rim

B、 The wear amount of pulley rope groove wall thickness reaches... Of the original wall thickness 10%

C、 The wear of the pulley groove bottom exceeds... Of the corresponding wire rope diameter 20%

D、 The wear amount of pulley rope groove wall thickness reaches... Of the original wall thickness 15%

12、【 Single topic selection 】 The insulation of air conditioning connecting pipe is for ().（  B  ）

A、 To prevent scalding

B、 Energy saving

C、 Binding is convenient

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

A、 High carbon steel

B、 Medium carbon steel

C、 Mild steel

14、【 Single topic selection 】 The subcontractor ( ) Have corresponding qualifications , And undertake obligations within the scope permitted by its qualification level .（  A  ）

A、 Should be

B、 must

C、 Sure

D、 Unwanted

15、【 Single topic selection 】 Explain the emergency policy of the accident in general 、 policy , Emergency organization and relevant emergency responsibilities , Emergency action 、 Basic requirements and procedures such as measures and guarantees , The comprehensive document to deal with all kinds of accidents is ().（  A  ）

A、 Comprehensive emergency plan

B、 Special emergency plan

C、 Site disposal plan

16、【 Single topic selection 】 In the rain 、 frost 、 Fog 、 When working at height in snowy weather , Anti skid measures should be taken 、 Antifreeze measures , And it shall be removed in time ( ) Of water 、 ice 、 snow 、 frost .（  B  ）

A、 The basement

B、 On the working surface

C、 On the facade

D、 On the scaffold

17、【 Single topic selection 】 Operators of vertical transportation machinery 、 Installation and disassembly workers 、 Blasting operators 、 Crane signalman 、 Special operators such as climbing and erection operators , It must be approved in accordance with the relevant provisions of the state ( ) train , After obtaining the qualification certificate for special operation , Before starting work .（  A  ）

A、 Special safe operation

B、 Tertiary education

C、 Safety education

D、 Safety skills

18、【 Single topic selection 】 It is necessary to provide users with emergency consultation telephone numbers for dangerous goods accidents ( ).（  A  ）

A、 Production unit

B、 Sales unit

C、 Safety supervision organization

19、【 Single topic selection 】 Demolition method of foundation pit support structure 、 The removal sequence shall comply with ( ) requirement .（  A  ）

A、 Special construction scheme

B、 working procedure

C、 Construction site environment

D、 Construction progress

20、【 Single topic selection 】 The installation unit of tower crane shall comply with the specified requirements ( ) Construction is required , When the specified requirements cannot be met , Basic design should be carried out .（  A  ）

A、 Installation and operation instructions

B、 Construction organization design

C、 Product certificate

D、 Manufacturing supervision and inspection certificate

21、【 Single topic selection 】 Learn advanced concepts and technologies of construction safety management at home and abroad , The focus is on safety management ( ) Transformation .（  C  ）

A、 style of work

B、 Working methods

C、 Work philosophy

D、 working hours

22、【 Single topic selection 】 When the anchor bolt above the excavation surface of the foundation pit 、 Soil nails 、 When the support does not meet the design requirements ,( ) Overbreak down .（  D  ）

A、 Not suitable

B、 prohibit

C、 Sure

D、 strictly prohibit

23、【 Single topic selection 】 As the continuous 5 The daily average temperature is lower than ( ), Generally speaking, it enters the winter construction stage .（  A  ）

A、5 Centigrade

B、-5 Centigrade

C、-8 Centigrade

D、0 Centigrade

24、【 Single topic selection 】 One year 4 month 27 Day and night shift , When the construction unit of underground roadway excavation fired the second shot on duty , The operator thought it was more quiet at night 、 No one will enter the working face , Blaster Zhang and worker Sun left a connection to shoot , The rest of the staff went to push the harvester . Grandchildren 、 Zhang and Zhang were ready to shoot without standing guard , At this time, the tile Inspector Chen entered the head-on from the liaison Lane , Just walked to the front 17m It's about , Grandchildren 、 Zhang two people then electrify and shoot , The fried coal flew up and hit Chen in the face , Cause minor injury . Based on the above facts , Among the options below , Not the requirements of blasting operation, but ().（  B  ）

A、 During blasting operation , Blasting safety operation regulations must be observed

B、 The blasting operation must be commanded by the safety management personnel

C、 After blasting , The site must be inspected , After confirming the safety, send out the warning release signal

25、【 Single topic selection 】 according to 《 Rules for investigation and analysis of casualty accidents of enterprise employees 》（GB6442－86） The provisions of the , The direct cause of the accident refers to machinery 、 Unsafe state of substance or environment and ( ).（  B  ）

A、 No safe operation procedures or incomplete

B、 Human unsafe behavior

C、 Unreasonable Labor Organization

D、 Lack of inspection or wrong guidance for on-site work

26、【 Single topic selection 】 Poor meteorological conditions are a kind of physical occupational hazard factors in the workplace . Among the following occupational diseases, the occupational diseases caused by abnormal meteorological conditions are ().（  C  ）

A、 pneumoconiosis

B、 Noise deafness

C、 Altitude sickness

27、【 Single topic selection 】 Not belonging to the belt conveyor protection device are ().（  A  ）

A、 Spray device

B、 Anti deviation device

C、 Overspeed protection device

28、【 Single topic selection 】 In accordance with the relevant provisions , The depth of excavation exceeds （） The foundation pit , A special construction scheme shall be prepared for the earthwork excavation of the trench .（  C  ）

A、3 rice （ contain 3 rice ）

B、5 rice

C、5 rice （ contain 5 rice ）

D、8 rice

29、【 Single topic selection 】 The height of the operating platform shall not exceed 5m, Stability checking calculation shall also be carried out , And take measures to reduce the of columns ( )（  B  ）

A、 Aspect ratio

B、 Slenderness ratio

C、 Area of operating platform

D、 Pole spacing

30、【 Single topic selection 】 Education and training are graded 、 The level and nature of work shall be carried out separately , The focus of managers is ( ).（  B  ）

A、 Abide by rules and discipline

B、 Safety production awareness and safety management level

C、 Self protection

D、 Improve the ability to prevent accidents

31、【 Single topic selection 】《 Fire classification 》（GB4968-2008） The standard divides fires into （）.（  B  ）

A、Ⅰ Class fire 、Ⅱ Class fire 、Ⅲ Class fire and Ⅳ Class fire

B、A Class fire 、B Class fire 、C Class fire 、D Class fire 、E Class fire 、F Class fire

C、 Solid fire 、 Liquid fire 、 Gas fires and mixture fires

32、【 Single topic selection 】 In the composition structure of the construction elevator , There are mainly guide rail frames 、 Hanging cage 、 Protective fence 、 The attached wall frame and floor door are composed of ( ).（  A  ）

A、 Steel structure

B、 Transmission mechanism

C、 Safety device

D、 Control system

33、【 Single topic selection 】 The person in charge of the project of the construction unit shall obtain the corresponding approval ( ) The person who is responsible for .（  C  ）

A、 Technical title

B、 Years of service

C、 Practice qualification

D、 Administrative position

34、【 Single topic selection 】 Diesel pile hammer at ( ) The use of pile foundation in construction is limited （  A  ）

A、 city proper

B、 Suburb

C、 rural

D、 The county

35、【 Single topic selection 】 Fixing of railing post and its connection with cross bar , Its overall structure shall make the protective railing anywhere on the upper pole , Can withstand ( ) The direction of the 1000N external force .（  D  ）

A、 vertical

B、 level

C、 Slant down 45% Direction

D、 whatever

36、【 Single topic selection 】 according to 《 Regulations on the qualification management of construction enterprises 》（ Order of the Ministry of Construction No 87 Number ） and 《 Qualification grade standard for construction enterprises 》 The provisions of the , Engaged in the installation of construction hoisting machinery 、 Demolition construction unit , You should have ( ).（  B  ）

A、 License for installation, transformation and maintenance of special equipment

B、 Professional contracting qualification for hoisting equipment installation engineering

C、 Tower crane disassembly license

D、 Hoisting machinery installation license

37、【 Single topic selection 】 According to the relevant provisions of the Ministry of construction , Construction unit ( ) The workers , Must receive three-level safety training and Education , After passing the examination , Before you can take up your post .（  B  ）

A、 transfer to a new post

B、 New admission

C、 Change the type of work

D、 Engaged in special operations

38、【 Single topic selection 】 For most fusion welding equipment , The decisive factor for the suitability of power transformer is ().（  A  ）

A、 Allowable voltage drop

B、 Allowable current value

C、 Allowable heat level

39、【 Single topic selection 】 Low voltage power equipment , Using the same grounding device, the equipment capacity is 100kVA following , The grounding resistance shall meet the requirements of ().（  B  ）

A、. No more than 20Ω

B、. No more than 10Ω

C、. No more than 15Ω

40、【 Single topic selection 】 The production and business operation entities shall organize and carry out their own business activities ( ), Make relevant personnel understand the contents of the emergency plan , Familiar with emergency responsibilities 、 Emergency procedures and post emergency disposal plan .（  A  ）

A、 Emergency plan training activities

B、 Emergency plan preparation

C、 Emergency plan drill

41、【 Single topic selection 】 Except for all large and medium-sized hazardous chemical enterprises , Other hazardous chemical enterprises that do not have the conditions to establish a full-time rescue team , Must be established ().（  A  ）

A、 Part time rescue team

B、 Professional emergency rescue team

C、 Volunteer rescue team

42、【 Single topic selection 】 When the scaffold board is overlapped and laid , The joint length shall be ()mm.（  A  ）

A、200

B、150

C、100

43、【 Single topic selection 】 The sign that must be locked is ().（  B  ）

A、

B、

C、

44、【 Single topic selection 】 Each electric equipment must have its own special switch box , It is forbidden to use the same switch box to directly control ( ) Taiwan and ( ) More than one electric equipment （ Including socket ）.（  D  ）

A、1,3

B、1,2

C、1,1

D、2,2

45、【 Single topic selection 】 Gas cylinders （ Acetylene cylinder 、 Oxygen bottle ） The distance from the welding torch shall not be less than ( )m.（  B  ）

A、5

B、10

C、15

D、20

46、【 Single topic selection 】 Toxic to those who may have acute occupational injury 、 Hazardous workplace , The employer shall set up alarm devices , Provide on-site first aid supplies 、 Flushing equipment 、 Emergency evacuation routes and necessary ( ).（  A  ）

A、 Danger area

B、 ambulance

C、 clinic

47、【 Single topic selection 】() It is the most basic guarantee of safe production .（  B  ）

A、 Safety laws

B、 Safety input

C、 Security system

48、【 Single topic selection 】 Upper and lower fixing of pulley block 、 The movable sheaves shall be , Ann whole Pass the production simulation exam at one point , keep ( )m The minimum distance .（  C  ）

A、0.5m

B、1m

C、1.5m

D、2m

49、【 Single topic selection 】 Material hoist cage （ hanging basket ） The two sides of the shall be set at not less than ( ) High safety baffle or screen .（  C  ）

A、80cm

B、90cm

C、100cm

D、110cm

50、【 Single topic selection 】 Around the foundation of material elevator ( )m No drainage ditch shall be dug within the scope .（  D  ）

A、2m

B、3m

C、4m

D、5m

51、【 Single topic selection 】 Rammed earth protective wall of fireworks and firecracker factory , The slope degree should be ____.（  A  ）

A、1:0.2 to 1:0.25

B、1:0.3 to 1:0.4

C、1:0.4 to 1:0.5

52、【 Single topic selection 】 If the rope of the safety belt is found to be deteriorated , It should be done immediately () Use .（  C  ）

A、 maintenance

B、 Replace

C、 stop it

53、【 Single topic selection 】 The production and business operation unit makes business decisions involving production safety , We should listen to ( ) And opinions of safety production management personnel .（  A  ）

A、 Safety production management organization

B、 Project management organization

C、 Quality and technical management organization

D、 Engineering management organization

54、【 Single topic selection 】 Projects under construction ( Including scaffold ) Around 1KV The minimum safe distance between overhead lines is ()m.（  A  ）

A、4

B、3

C、5

55、【 Single topic selection 】 The cover of electric welding machine shall be rainproof 、( )、 Moisture-proof .（  B  ）

A、 Windbreak

B、 dustproof

C、 waterproof

D、 Anti impact

56、【 Single topic selection 】 In industrial cryogenic devices , Most centrifugal refrigerators use ( ) compressor .（  C  ）

A、 Single stage

B、 second level

C、 multistage

57、【 Single topic selection 】 A hazardous chemicals business unit or a business enterprise with storage facilities changes its storage place , Should ( ) Apply for business license .（  B  ）

A、 No need

B、 Reapply

C、 Reapply afterwards

58、【 Single topic selection 】 The front wheel of the loader shall be kept at least... From the edge of the groove ( ) A safe distance from , And put a stop wood to cover . Security Production simulation test 1 Diantong ..（  D  ）

A、5m

B、4m

C、3m

D、2m

59、【 Single topic selection 】 The grounding resistance of lightning protection shall not be greater than ( )Ω.（  C  ）

A、4

B、5

C、10

D、20

60、【 Single topic selection 】 Various non grounded asymmetrical faults of the motor include ( )、 Phase failure 、 Reverse phase sequence connection and large imbalance of power supply voltage .（  A  ）

A、 Motor turn to turn short circuit

B、 Overload

C、 Overcurrent

61、【 Single topic selection 】 When lifting with two cranes , Cranes of the same type or similar performance should be selected , Load distribution shall be reasonable , The single machine load shall not exceed the rated lifting capacity ( )%.（  C  ）

A、60

B、70

C、80

D、90

62、【 Single topic selection 】 When multiple jacks are used for joint jacking , Jack of the same model shall be selected , The rated lifting capacity of each unit shall not be less than... Of the shared component weight ( ) times .（  B  ）

A、1.0

B、1.2

C、1.5

D、2.0

63、【 Single topic selection 】 It is forbidden for blasting operators who process blasting materials to wear ().（  C  ）

A、 Non work clothes

B、 Cotton clothes

C、 Chemical fiber clothes

64、【 Single topic selection 】 When working at heights in rainy and snowy days , Reliable anti-skid measures must be taken 、 Cold proof and ( ) measures .（  D  ）

A、 Frost prevention

B、 waterproof

C、 Antifogging

D、 Antifreeze

65、【 Single topic selection 】 The voltage levels in China are :()kV.（  A  ）

A、1000

B、100

C、50

66、【 Single topic selection 】 Need temporary ( ) Safety protection facilities , Reliable measures that can replace the original protective facilities shall be taken , It should be restored immediately after operation .（  A  ）

A、 Dismantle or change

B、 strengthening

C、 Rust removal

D、 Set up

67、【 Judgment questions 】 When the occupational disease diagnosis institution makes the occupational disease diagnosis , The diagnosis physician has different opinions on the diagnosis conclusion , The diagnosis conclusion should be formed according to the consensus of more than half of the diagnostic doctors , Different opinions should be truthfully recorded . The occupational disease diagnosis physician participating in the diagnosis shall not abstain .（  √  ）

68、【 Judgment questions 】 Large personnel mobility is one of the characteristics of building construction .（  √  ）

69、【 Judgment questions 】 When the working environment is good , If personal protection is ignored , The human body is still in danger of injury , When working in a closed container, the hazard is small .（  ×  ）

70、【 Judgment questions 】 Non coal mine ( oil 、 Except for natural gas exploitation ) The mine rescue team shall be qualified . After obtaining the qualification certificate , Before signing the rescue agreement with the mining enterprise or engaging in relevant activities in the society ‘ Safety student The production simulation test is a little through ‘ Rescue technical services .（  √  ）

71、【 Judgment questions 】 Employees engaged in hazardous operations , Because it is required to receive ’ Security raw production The mock exam is a little through ’ The working time occupied by occupational health examination , It should be treated as normal attendance .（  √  ）

72、【 Judgment questions 】 Fireworks and firecrackers according to relevant national standards , Be classified 9 Categories: .（  √  ）

73、【 Judgment questions 】 The method of salt slag high-voltage starting is to use a voltage higher than the working voltage of the transformer to break down the electrode with salt slag , Start by melting .（  √  ）

74、【 Judgment questions 】 The height of scaffold is greater than 6m when , Should use “ One ” Font track .（  ×  ）

75、【 Judgment questions 】 The short shaft fan with powerful power is the main device of the bell type furnace with forced convection of furnace gas .（  √  ）

76、【 Judgment questions 】 The inspection of quarry equipment is generally divided into daily inspection and irregular inspection .（  ×  ）

77、【 Judgment questions 】 When the riser is concealed , The riser of each floor and each trip shall be hung from top to bottom to install clamps , Highly consistent ; Arrange the prefabricated riser in layers according to the number , Sequential installation , The mark when the sign is straightened . Check the height of reserved opening 、 Is the right direction .（  ×  ）

78、【 Judgment questions 】 The overlapping area between the time limited current quick break protection of this line and the instantaneous current quick break protection range of subordinate lines fails , If instantaneous current quick break protection refuses to operate , Then the above protection will not operate .（  ×  ）

79、【 Judgment questions 】 The emergency plan shall include the contact information of the emergency organization and personnel 、 Emergency material reserve list and other Annex information . The attached information should be updated frequently , Ensure that the information is accurate and effective .（  √  ）

80、【 Judgment questions 】 Industrial poisons are mainly absorbed by entering the human body through respiratory tract and skin , It enters the human body through the digestive tract and is absorbed more .（  ×  ）

81、【 Judgment questions 】 Gas cutting cannot cut complex parts on steel plate .（  ×  ）

82、【 Judgment questions 】 Before the accident , Seize the moment , Eliminate unsafe factors in time , Many major casualty accidents can not be avoided .（  ×  ）

83、【 Judgment questions 】 The construction unit may contract out the demolition project to individuals or construction units that do not meet the above requirements .（  ×  ）

84、【 Judgment questions 】 The leads of the combined fireworks must meet the following requirements : The surface is clean and dry , No damage 、 No leakage 、 No mildew .（  √  ）

85、【 Judgment questions 】 Arc brazing is the use of tungsten electrodes or bonding materials with melting points lower than the base metal ( Solder ) The arc burning with the base metal is used as the heat source , The heat generated will melt the solder and the base metal will not melt , Through the flow of solder 、 fill “ Safety production mold quasi The test A little “ seam 、 It interacts with the base metal and condenses to form a weld , Welding process to obtain a firm joint .（  √  ）

86、【 Judgment questions 】 The excavator whistle or alarm shall be intact . The lighting must be good when working at night .（  √  ）

87、【 Judgment questions 】 At an earthquake intensity higher than 4 Waste dump in Dudu area , Corresponding emergency plans for earthquake prevention and earthquake resistance shall be formulated .（  ×  ）

88、【 Judgment questions 】 It is difficult to measure ultrasonic power in practical application , Therefore, the amplitude is often used to express the power .（  √  ）

89、【 Judgment questions 】 Anti skid measures shall be formulated before winter construction 、 Antifreeze 、 Explosion proof 、 Prevent poisoning 、 Fire prevention and other measures .（  √  ）

90、【 Judgment questions 】 The difficulty in the construction of air conditioner relocation is the demolition of outdoor unit .（  √  ）

91、【 Judgment questions 】 Repair old shafts and alleys , We should first understand the stability of the roadway itself and the surrounding structures 、 Shafts and alleys 、 Distribution of goaf , Make sure it's safe .（  √  ）

92、【 Judgment questions 】 Firecracker means that the main body explodes but does not lift off and can produce a explosive sound 、 Flash and other effects , Products that focus on auditory effects .（  √  ）

93、【 Judgment questions 】 The factor that causes the unbalanced current of transformer differential protection is the saturation of current transformer core 、 The transformation ratio of voltage transformer affects .（  ×  ）

94、【 Judgment questions 】 In the chemical safety technical specification “ Fire fighting measures ” A major identification of the physical and chemical hazards of chemicals , Suitable extinguishing medium . Unsuitable extinguishing media need not be explained .（  ×  ）

95、【 Judgment questions 】 Mining all kinds of water proof coal pillars without authorization , It belongs to the hidden danger of major accidents in coal mines .（  √  ）

96、【 Judgment questions 】 The body of the tower crane has been grounded , The exposed conductive part of its electrical equipment can no longer be connected with PE Wire connection .（  √  ）

97、【 Judgment questions 】 The order of formwork removal shall be in accordance with the provisions of the plate design , If there is no design provision , The principle of supporting first and then dismantling shall be followed , Remove the rear support first , First remove the non load bearing formwork , Then remove the formwork of the bearing part , From top to bottom , Remove the lateral support first , Remove the vertical support .（  √  ）

98、【 Judgment questions 】 The role of retaining wall is mainly used to maintain the stability of soil slope , Prevent the sliding of slope body and the collapse of soil slope .（  √  ）

99、【 Judgment questions 】 according to 《 Regulations on the administration of safe production of construction projects 》, In case of general contracting, the general contracting unit shall uniformly prepare the emergency rescue plan for production safety accidents of construction projects . The subcontractor does not need to be equipped with emergency rescue personnel .（  ×  ）

100、【 Judgment questions 】 Fire fighting products must comply with national standards ; There is no national standard , Must meet industry standards . No production 、 Sell or use unqualified fire-fighting products and fire-fighting products officially eliminated by the state .（  √  ）

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