Question bank source: Safety production mock test, one-stop public account applet
2024 [G3 Boiler Water Treatment] Review Exam and G3 Boiler Water Treatment Mock Exam, including G3 Boiler Water Treatment Review Exam Answers and Analysis and G3 Boiler Water Treatment Mock Exam Exercises. Combined with the latest syllabus of the national G3 boiler water treatment exam and the summary of the real questions of the G3 boiler water treatment exam, the safety production mock test is helpful for the pre-exam practice of the G3 boiler water treatment exam questions.
1. [Multiple choice question] Among the following reagents, () cannot be used in the basic burette. （ BD ）
A. Sodium hydroxide solution;
B. Silver nitrate solution;
C. EDTA solution;
D. Potassium permanganate solution
2. [Multiple choice question] The "Regulations on the Safety Supervision of Special Equipment" stipulates that special equipment includes its attached (), safety protection devices and facilities related to safety protection devices. （ B ）
A. Soda pipeline
B. Safety Attachments
C. Auxiliary equipment
3. [Multiple Choice] In the primary desalination system, if it is found that the PH value of the water in the yin bed suddenly decreases, the silicon content increases, and the conductivity first decreases and then rises sharply, it means (). （ B ）
A. Both the yin and yang beds have failed
B. The yin bed fails and the yang bed does not fail
C. Both the yin and yang beds have not failed
D. The yang bed is invalid, and the yin bed is not invalid
4. [Multiple choice question] The names or common names of the following groups of substances are consistent with their chemical formulas. （ A ）
A、氢氯酸、盐酸、HCl；
B、纯碱、烧碱、NaOH；
C、胆矾、蓝矾、CuSO4
D、生石灰、熟石灰、CaO
5. [Multiple Choice] Which of the following methods is NOT a representation of corrosion velocity () ( C )
A. Corrosion depth;
B. Corrosion quality;
C. Thickness of protective film;
D. Corrosion current
6. [Multiple Choice] In the following experimental operations, the correct one is (). （ A ）
A. Use the outer flame of the alcohol lamp to heat the test tube;
B. Put the remaining drugs back to the original trial bottle immediately;
C. Prepare a certain percentage concentration of solution in a graduated cylinder;
D. Put the weighing object on the right plate of the tray balance and weigh it
7. [Multiple Choice] Which of the following measures to prevent superheated steam pollution is wrong () ( D )
A. For the hybrid desuperheater, the desuperheater water quality must be guaranteed
B. For surface desuperheaters, prevent desuperheater leakage
C. Prevent impurities remaining in the superheater during installation and maintenance
D. Reduce the amount of dissolution carried by superheated steam engine
8. [Multiple choice question] Which of the following operations does not belong to the scope of boiler blowdown? （）（ D ）
A. Reduce the salt content of pot water;
B. Drain the sediment formed in the pot;
C. Drain the grease and foam formed on the surface of the pot water;
D. Drain hydrogen ions from water
9. [Multiple choice question] The Special Equipment Safety Law of the People's Republic of China stipulates that the state shall implement safety supervision and management of the whole process of production, operation and use of special equipment. （ A ）
A. Categorical
B. Comprehensive
C. Partial
10. [Multiple Choice] In order to ensure that the water sample is fully representative, the water sample sampling pipeline should be separated at least () h after flushing before sampling. （ B ）
A、0.5；
B、1～2；
C、0.5～1；
D、2～3
11. [Multiple choice question] From the selection order of ion exchange resin, it can be seen that the following () is the most easily absorbed by strong acidic cation exchange resin and not easy to be removed by regeneration. （ B ）
A. Sodium ion;
B, iron ions;
C. Calcium ions;
D. Hydrogen ions
12. [Multiple choice question] The following () is elemental. （ A ）
A、氯;
B. Carbon monoxide;
C. Carbon dioxide;
D、水
13. [Multiple choice question] The worker's work clothes should not be the part that may be twisted by the machine of (), and the scarf should not be worn. （ D ）
A、． spare
B、． Deactivated
C, .stationary
D、． turn
14. [Multiple choice] The thickness of the insulation layer should be determined according to (). （ C ）
A. The thinner, the better
B. The thicker the better
C. Economic thickness
15. [Multiple choice question] If the furnace is stopped within one week, () maintenance should be adopted. （ D ）
A. Drying method;
B. Lye method;
C. Ammonia filling method;
D. Maintain steam pressure method
16. [Multiple choice question] After the concentration of regenerant and regeneration solution is determined, in order to improve the degree of resin regeneration, the control condition of the flow rate of regenerated solution is (). （ C ）
A. In order to discharge the regenerated counterions in time, the faster the flow rate of the regenerated liquid, the better
B. For countercurrent regeneration, in order to prevent the regeneration from being chaotic, the slower the flow rate of the regenerated solution, the better
C. The control of the flow rate of the regenerated liquid should not only ensure a certain regeneration time, but also discharge the regenerated counterions in time
D. In order to prolong the contact time between the regenerated solution and the resin, the slower the flow rate of the regenerated solution, the better
17. [Multiple choice question] The main reason for the unqualified condensate hardness (). （ B ）
A. The make-up water is unqualified
B. Condenser tube leakage
C. The concentration rate of circulating water is too large
18. [Multiple choice] Condensate filtration is mainly to remove () in water. （ C ）
A、.NH4+
B、． Salt ions
C、． Fe3+ in the suspended state
D、.Na+
19. [Multiple Choice] Under the same flow rate, the working exchange capacity of resin in the raw water () will decrease. （ D ）
A. Temperature increases
B. The content of the substances to be removed is reduced
C. Salt content is reduced
D. The content of the substances to be removed increases
20. [Multiple choice question] Which of the following statements is false when absorbing acidic, alkaline, toxic, volatile or irritating liquids (). （ D ）
A. Use a pipette;
B. Suction ball;
C. Use a sucker;
D. Suction with a glass tube in the mouth
21. [Multiple choice question] When inspecting in the steam drum, condenser and deaerator, the voltage of the running lamp used for lighting shall not exceed () volts. （ B ）
A、6
B、12
C、24
D、36
22. [Multiple Choice] Which of the following operations is wrong in the process of spectrophotometric measurement? （）（ B ）
A、． Hand knead the raw surface of the cuvette
B、． Hand pinch the glossy side of the cuvette
C、． Inject the solution to be tested into 2/3 of the height of the cuvette
D、． Wipe off the water from the outer wall of the cuvette with filter paper
23. [Multiple Choice] In the working process of the filter, due to the continuous interception of suspended solids, the head loss will continue (), which will lead to the () of the filtered water volume. （ C ）
A、． Decrease, increase
B、． Decrease, decrease
C、． Increase, decrease
D、． Enlarge, enlarge
24. [Multiple choice] After lime precipitation is added to the raw water with high alkalinity and high hardness, the () of water is reduced. （ D ）
A. Alkalinity
B. Hardness
C. pH value
D. Carbonate hardness and alkalinity
25. [Multiple choice question] The size of the conductivity of the sample condensed into water by passing the hydrogen ion exchange column can characterize the salt content of the steam, and the determination of the conductivity after hydrogen ion exchange is used to avoid the interference of () in the steam. （ B ）
A. Sodium ions
B. Silicic acid
C. Potassium ions
D. Ammonia
26. [Multiple Choice] The main heat loss of small low-pressure boilers is (). （ A ）
A. Mechanical incomplete combustion heat loss
B. Loss of heat from chemically incomplete combustion
C. Exhaust heat loss
D. Heat loss of heat dissipation of furnace wall
27. [Multiple Choice] The rated working pressure of industrial boilers generally does not exceed (). （ B ）
A、.2.5Mpa
B、.3.8Mpa
C、.1.25MPa
28. [Multiple Choice] The PH value standard for wastewater discharge is (). （ C ）
A、.9~11
B、．5～7
C、．6～9
29. [Multiple Choice] When concentrated acid splashes on the eyes or skin, a large amount of () should be used quickly. After the above-mentioned emergency treatment, you should immediately send to the infirmary for first aid. （ B ）
A. Rinse with clean water and then wash with 0.5% sodium hydroxide solution
B. Rinse with clean water and then wash with 0.5% sodium bicarbonate solution
C. Rinse with clean water and then wash with 5% sodium hydroxide solution
D. Rinse with clean water and then wash with 5% sodium bicarbonate solution
30. [Multiple Choice] When the foam layer in the boiler drum is very high, the steam can even (). （ B ）
A、倒流
B. Take the foam away directly
C. Stay in the pot water
D. Short circuit in the separator
31. [Multiple choice question] In accordance with the provisions of the "Rules for the Supervision and Administration of Boiler Water (Medium) Treatment", the steam boiler with rated evaporation capacity D () and the hot water boiler with rated thermal power D () shall be analyzed at least once every 8 hours. （ A ）
A、．1t/h≤D＜4t/h、0.7MW≤D＜4.2MW
B、．1t/h≤D≤4t/h、0.7MW≤D＜2.8MW
C、．1t/h≤D＜4t/h、0.7MW≤D＜2.8MW
32. [Multiple Choice] If the inner surface of the newly made monitoring pipe section is relatively clean, there is only a thin oxide film, and there is no obvious (), it can be used directly without pickling. （ B ）
A. Corrosion
B. Rust layer
C. Pitting corrosion
D. Oxide film
33. [Multiple choice] The darker the color of the new resin, it means that it () ( C )
A. The worse the physical properties;
B. The amount of crosslinker added is small;
C. The more impurities it contains;
D. The worse the chemical properties
34. [Multiple choice question] After the resin is used, if it is not used for a long time, it should be converted to the factory type for storage, and the strong acid cation exchange resin is generally () type. （ A ）
A、Na;
B、H;
C、OH;
D、Cl
35. [Multiple Choice] When the water quality of the water source is not stable, the general filter should determine whether it needs to be backwashed according to ().
A. Pressure drop of the filter layer of water flow;
B. Running time;
C. Salt content of effluent;
D. Effluent turbidity
36. [Multiple choice question] When the activated carbon is affected by suspended solids or colloidal contamination and affects the adsorption filtration, the method of () can be used to clean. （ A ）
A. Backwashing;
B. Organic solvent extraction;
C. High temperature roasting;
D. Steam purging
37. [Multiple choice question] The most important role of activated carbon filter in treatment equipment is (). （ C ）
A、． Removal of colloidal substances
B、． Removal of suspended solids
C、． Dechlorination and removal of organics
38. [Multiple choice question] When determining the hardness in water, the effect of adding buffer solution is (). （ A ）
A、控制溶液的pH=10±0.1
B. Eliminate interfering impurities in analytical reagents
C. It is convenient for color observation of the end point of the titration
D. Indicate the titration endpoint
39. [Multiple Choice] When measuring sodium ions in water samples, the pH value of water samples is controlled at (). （ D ）
A, .7 and below
B、．6～9
C、．1～14
D, .10 or above
40. [Multiple choice question] The standard solution used to determine hardness is (). （ C ）
A、．H2SO4
B、.AgNO3
C、.EDTA
41. [Multiple choice question] The intermediate water distribution device of the mixed bed is located in (). （ D ）
A、． The middle of the mixed bed tank
B、． Cation exchange resin side after layering
C、． Anion-exchange resin side after layering
D、． The junction of anion and cation exchange resins after layering
42. [Multiple choice] If the mixer is set up within the operation range of the tower crane, a safety protection shed must be erected. （ B ）
A. Single-layer
B. Double-layered
C, three floors
D. Metal
43. [Multiple Choice] The unit of quantity and concentration of a substance is (). （ A ）
A、.mol/L
B、.kg/m3
C、.kg/mol
44. [Multiple choice question] If a special equipment operator discovers a potential accident or other unsafe factors during the operation, he or she shall immediately (). （ C ）
A. Stop the operation of the equipment;
B. Leave the scene;
C. Report to the on-site safety management personnel and the relevant person in charge of the unit;
D. Activate the emergency plan
45. [Multiple choice question] The special equipment user shall carry out special equipment safety education and training for special equipment operators to ensure that special equipment operators have the necessary (). （ B ）
A. Operation certificate;
B. Knowledge of safe operation;
C. Cultural knowledge;
D. Work permit
46. [Multiple Choice] The minimum requirements for reagents used to prepare standard solutions are (). （ B ）
A、． Superior Pure
B、． Analytical pure
C、． Chemically pure
47. [Multiple choice] When heating a liquid with a beaker, the height of the liquid is not allowed to exceed the () of the beaker. （ C ）
A, three-quarters
B, one-third
C. Two-thirds
D, one-half
48. [Multiple choice question] At present, the anti-corrosion of the inner wall of the chemical yin-yang exchanger used in power plants is (). （ C ）
A、． Rubber-lined fiberglass
B、． Anticorrosive coatings
C、． Adhesive lining
D、． epoxy resin
49. [Multiple Choice] The () of ion exchange resin is the basis for ion exchange resin to be used repeatedly. （ A ）
A、． reversibility
B. Renewability
C、． Acidity and alkalinity
D、． selectivity
50. [Multiple Choice] The supervision of steam quality is to facilitate the inspection of the cause of steam quality deterioration, and at the same time, it can also judge the salt in the saturated steam in the superheater (). （ C ）
A. Corrosion
B. Distribution
C. Deposition volume
D. Deposition velocity
51. [Multiple Choice] The silicic acid compounds carried by vapor dissolution will be deposited on (). , Safe Production Mock Exam, (B)
A、． superheater tube wall
B、． on steam turbine blades
C、． Superheaters and steam turbines
D、． No sedimentation
52. [Multiple choice question] When designing the boiler room, the design unit should choose a reasonable and effective boiler water treatment design scheme according to the provisions of () and the "Rules for the Supervision and Administration of Boiler Water (Medium) Treatment". （ D ）
A. Design specifications
B. Water quality
C. Water supply
D. Water quality standards
53. [Multiple Choice] Superheated steam refers to the steam of (). （ B ）
A、． High temperature and high pressure
B、． The temperature is higher than the saturation temperature at the same pressure
C、． The pressure is greater than 1 atmosphere
54. [Multiple Choice] Countercurrent regeneration sodium ion exchanger, such as using salt solution as a regenerant, its appropriate concentration is (, safety production simulation test is passable, )%. （ B ）
A、2~4;
B、4~6;
C、6~8;
D、8~10
55. [Multiple choice] When preparing dilute sulfuric acid, (), stir continuously to prevent violent heating. （ B ）
A. It is forbidden to pour acid into the water, and a small amount of water should be slowly dripped into the concentrated acid
B. It is forbidden to pour water into the acid, and a small amount of concentrated acid should be poured into the water slowly
C. It is forbidden to pour water into the acid, and a small amount of concentrated acid should be poured into the water quickly
D. Water and acid should be poured into it at the same time
56. [Multiple Choice] The chromium black T indicator shows different colors in different pH values, and the color displayed when the pH value is 8~11 is (). （ B ）
A、． Burgundy
B、． Blue
C、． amaranth
57. [Multiple choice question] The effect of adding medicinal water in the pot is related to the daily sewage discharge method, and the operation method of () is generally used for boiler sewage discharge. （ C ）
A、． Once per shift
B、． Once a day
C、． Less row, frequent row, balanced row
58. [Multiple Choice] The salt content of the pot water increases, the steam bubble film () increases, and after the bubble passes through the evaporation surface, it will break when the water film becomes very thin, and the water droplets formed will be smaller and easier to be carried by the steam. （ C ）
A. Viscosity
B. Size
C. Strength
D. Tension
59. [Multiple Choice] When the boiler is under low load, the water level should be adjusted to (). （ B ）
A. Highest water level
B. Slightly higher than the normal water level
C. Slightly lower than the normal water level
D. Minimum water level
60. [Multiple Choice] The part of the heating surface of the boiler that is most prone to hard scale is (). （ C ）
A. Economizer;
B. Steam drum;
C. Water wall pipe;
D. a descending tube
61. [Multiple choice question] The items inspected by the chemical supervision cyclone separator during boiler overhaul are: water residue on the inner and outer surfaces, scaling and corrosion of the "safe production simulation test", whether there are () and other defects. （ C ）
A. Corrosion
B. Scaling
C. Falling off
D. Salt accumulation
62. [Multiple Choice] When the boiler is pickled, in order to prevent the corrosion of the metal by the acid, a sufficient amount of () must be added. （ A ）
A、． Corrosion inhibitors
B、． reducer
C、． Rinse agent
63. [Multiple Choice] During desalination treatment, if the water from the yin bed is acidic, it is likely that () has failed. （ A ）
A、． Yin bed
B、． Sun bed
C、． Both yin and yang beds
D、． Alkali regenerator
64. [Multiple choice question] During desalination treatment, if the alkalinity of the yin bed effluent increases, it is likely that () has failed. （ B ）
A、． Yin bed
B、． Sun bed
C、． Both yin and yang beds
D、． Acid regenerator
65. [Multiple choice question] For the drum boiler with a rated working pressure of 3.8~5.8MPa, the pH of the boiler water (25 °C) should be controlled at (). （ B ）
A、8.0~12.0
B、9.0~11.0
C、9.0~10.5
D、9.0~10.0
66. [Multiple choice question] The boiler with rated working pressure () needs to be quantitatively analyzed for scale samples. （ D ）
A、≥2.5MPa
B、>3.8MPa
C、>2.5MPa
D、≥3.8MPa
67. [True or False] The ratio of hydrogen ion concentration in pH=1 and pH=2 is 10:1, and the ratio of hydroxide is 1:10. （ √ ）
68. [True or False] The alkalinity of the pot water with a qualified PH value must also be qualified. （）（ × ）
69. [True or False] The PH value is equal to the logarithm of the concentration of hydrogen ions. （ × ）
70. [True or False] The "Special Equipment Safety Law of the People's Republic of China" stipulates that boiler cleaning shall be carried out in accordance with the requirements of safety technical specifications and shall be subject to the supervision and inspection of special equipment inspection institutions. （ √ ）
71. [True or False] The "Special Equipment Safety Law of the People's Republic of China" stipulates that the special equipment user shall carry out regular maintenance and regular self-inspection of the special equipment it uses, and make records. （）（ √ ）
72. [True or False] The Regulations on the Safety Supervision of Special Equipment stipulate that a special equipment accident that causes more than 40 deaths is a particularly serious accident (×)
73. [True or False] It is not allowed to store oxidants, reducing agents and other chemicals that are easy to react with each other in close proximity. （ √ ）
74. [True or False] The temperature of the water sample should not be too high during the determination of sulfite, so as not to affect the sensitivity of the starch indicator and make the result too high. （ √ ）
75. [True or False] The speed of chemical reaction is proportional to the product of reactant concentration, which is called the law of conservation of mass. （ × ）
76. [True or False] Chemical cleaning is a complex process, and poor control of cleaning process parameters will cause harm to the boiler. （ √ ）
77. [True or False] The purpose of adding hydrazine to the feed water is to eliminate the corrosion of dissolved oxygen. （ √ ）
78. [True or False] Electric welding work can be done in the hydrogen production room. （ × ）
79. [True or False] In the process of titration, the transition point where the color of the indicator changes is called the "titration endpoint". （）（ √ ）
80. [True or False] In electrochemical corrosion, the anode is always corroded by the "safe production simulation test". （ √ ）
81. [True or False] Most corrosion inhibitors should be controlled within a certain temperature range when used, and when the temperature increases, their efficiency decreases. （）（ × ）
82. [True or False] There is a crack on the reel, and it can be continued to be used after repair welding and polishing with a grinding wheel. （）（ × ）
83. [True or False] For boilers with relatively high boiler parameters, the most commonly used dosing agent in the pot is phosphate. （ √ ）
84. [True or False] The basic working parameters of industrial boilers include evaporation, pressure, and temperature. （）（ √ ）
85. [True or False] When the added standard solution and the measured substance happen to react completely according to the stoichiometric relationship expressed by the chemical reaction formula, this end point is called the "stoichiometric point" of the reaction. （）（ √ ）
86. [True or False] Personnel holding the "Special Equipment Operator Certificate" must be hired (hired) by the legal representative (person in charge) of the employer or their authorized person before they can do the "latest analysis" within the scope of the permitted project. （）（ √ ）
87. [True or False] There should be two locks for explosive materials and highly toxic drugs, and the keys should be kept by two people. There should be a strict management system for the use and disposal of drugs. （ √ ）
88. [True or False] The sampling location of steam and water should have good lighting. Gloves should be worn when sampling. （ √ ）
89. [True or False] The higher the temperature, the faster the chemical reaction. （ √ ）
90. [True or False] The conductivity of the solution decreases with the increase of temperature. （）（ × ）
91. [True or False] The solubility of a substance is mainly determined by the properties of the substance, so it is not affected by other factors. （ × ）
92. [True or False] Mass percentage concentration refers to the number of grams of solute contained in 100g of solution. （）（ √ ）
93. [True or False] Compared with downstream regeneration, countercurrent regeneration has the advantages of good effluent quality, low salt consumption and large working exchange capacity. （）（ √ ）
94. [True or False] After all or most of the suspended solids and inorganic cations and anions and other impurities in the water are removed through ion exchange treatment, the finished water obtained is collectively referred to as demineralized water. （ × ）
95. [True or False] The chemical corrosion of metals is generated by electric current, and this kind of corrosion is particularly prone to occur when the metal is wet or encounters water. （ × ）
96. [True or False] The larger the boiler blowdown rate, the lower the thermal efficiency of the boiler. （ × ）
97. [True or False] The purpose of boiler cleaning is to remove the deposited scale and corrosion products. （ √ ）
98. [True or False] In the boiler water supply system, the most prone corrosion is oxygen corrosion. （ √ ）
99. [True or False] The detailed test of thermal efficiency under boiler operating conditions is a thermal efficiency test for evaluating the energy efficiency of industrial boilers under actual operating parameters or for energy-saving diagnosis. （ √ ）
100. [True or False] The sampling device for deoxygenated water, feed water, pot water and water trap must be equipped with a cooler, and the sampling cooler should have sufficient cooling area and be connected to a water source that can continuously supply sufficient cooling water. ()（ √ ）
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