1. industrial furnaces and kilns to send gas does not fire or fire and then extinguished, you should immediately close the gas valve, investigate the cause of the exhaust gas mixture in the furnace, and then in accordance with the prescribed procedures to re-light.
2. When working with gas or participating in a gas poisoning accident, you should take measures to protect yourself by wearing an air respirator and paying attention to the wind direction to prevent the accident from expanding. Right
3. Converter gas recovery generally use the hood rising. Wrong
4. In order to prevent horizontal rotation of the piston should be set up anti-rotation device. Right
5. Employers must use effective occupational disease protection facilities, and provide workers with personal use of occupational disease protection equipment.
6. Blast furnace is the smelting of pig iron equipment, and blast furnace gas generation equipment.
7. After the accident, the relevant units and personnel should properly protect the accident scene and related evidence, no one shall not damage the accident scene, destroy the evidence. Right
8. isolation device is reliable cut off: plug valve, blind, NK water seal valve.
9. gas in the replacement process, it is strictly prohibited in the gas facilities on the chain, pull welding wire.
10. "Heat stroke prevention and cooling measures management measures" stipulates that: the maximum daily temperature reaches 40 degrees or more, should stop the day of outdoor work.
11. Limited space operators must be equipped with personal anti-poisoning and asphyxiation protective equipment, set up safety warning signs, strictly prohibit the operation of unprotected guardianship measures. Right
12. If the electrocuted person is seriously injured, has lost consciousness, heartbeat exists, should be shaken, cold water stimulation and other means to make it quickly awake. Wrong
13. gas equipment and facilities. On, should be connected to the steam and nitrogen purging pipe. Wrong
14. Hydrogen pipeline equipment blowing wash replacement venting depressurization, must be discharged through the vent pipe. Right
15. Catheter gas mask is a filter and mask directly connected to the protective mask. Wrong
16. Alarm signal can be maintained and can be manually eliminated. After the alarm is temporarily not taken to deal with the measures, can allow manual stop alarm. Wrong
17. In the gas area boundaries and within the boundaries, should be set up in a conspicuous safety signs and warning signs, strict management of fire, free access to personnel. Wrong
18. Gas equipment has been burned red can be cooled with water. Wrong
19.CO content of 1.28% when inhaled that is coma, 1 - 2min to death, so the possibility of coke oven gas poisoning death is also very large. Right
20.Gas equipment maintenance and fire work, as long as the gas protection station personnel verbal or on-site confirmation, can not issue a permit. Wrong
21. The methods of expressing the components of gas include weight method, volume method, molar method and absolute expression method. Factory gas is generally expressed by the molar method. Wrong
22. converter in the steelmaking process from the mouth of the gas is called converter gas, after purification and dust removal for the converter gas. Right
23. When operating gas facilities during a thunderstorm, you should pay extra attention to safety. Wrong
24. During the operation of the gas cabinet, there can be negative pressure inside the cabinet. Wrong
25. In the operation of a - once found that someone suffocated by poisoning, should be quickly lifted away from the poisoned environment to the poisoned environment upwind, fresh air flow and take the position of lying down. Rescue personnel should take protective measures to ensure their own safety. Right
26. The site workers have the right to prohibit people unrelated to production from entering the production site. For the selection of air-supplied respiratory protection, attention should be paid to the distance between the operating site and the air source, the obstruction of the air conduit to other operators on the site, the air supply line is damaged or cut off, and take possible precautions;. To
27. Underground gas pipeline drains, valves and turns, should be on the ground. There is a clear sign on the. Right
28. Personal respiratory protection should be cleaned and disinfected regularly, non-personal respiratory protection should be cleaned and disinfected after each use. Yes
29. Adjustment of gas generation and use of unbalanced capacity is called variable regulation. Right
30. Cylinder filling station should be set up in the real bottle bottle storage and empty bottle storage. Wrong
31. Valves must be installed in such a way as to ensure that their switching position corresponds to the external marking. Right
32. The weight of the substance contained per unit volume is called the weight. Right
33. The bottom of the electric tar trap should be insulated or heated. Right
34. When working with gas, iron tools should be Coated with a thick layer of lubricating grease. Right
35.Production workers should be simple to understand the site first aid knowledge and disposal skills, the correct use of safety equipment. Wrong
36. Coke oven gas pipeline color code is big red. Wrong
37. forced air supply of industrial kilns stop gas, should first close all the burners and then stop the blower. Right
38. Converter gas wet recovery is called LT method. Wrong
39. Blast furnace gas from the blast furnace into the gas pipeline system before the silencer, in order to prevent by the pressure reducing valve group in the control of the top pressure noise. Yes
40. When ventilating to the gas pipeline, the fan should be tested forwards and backwards before connecting the air belt. Right
41.Converter gas cabinet electric dedusting can be first power supply and then turn on the gas. Wrong
42. Furnace after the steel operation room (or operating table) should be located in a safer position, the window facing the steel outlet should be anti-splash facilities. Right
43. Dry gas cabinet gas storage in the lower part of the piston, moving up and down by the piston to change the volume of gas storage.
44. In the fire on the gas pipeline leakage point before welding should be around the leakage point of the steel plate thickness measurement, in order to prevent welding burned through. Right
45. "Self-contained open-circuit compressed air respirator" GB/T16556-2007 applies to oxygen respirator, diving respirator, escape respirator and negative pressure respirator. Wrong
46. into the gas facilities work, should carry carbon monoxide and oxygen monitoring device, and take protective measures, set up a person to monitor. Right
47.New workers should be physically examined before entering the production position, and the regulations on occupational contraindications should be implemented when assigning work. Right
48. Hydrogen is the most easily diffused, allowing the emission of hydrogen indoors. Wrong
49. For the rescue of the injured, to prevent the expansion of the accident and traffic and other reasons, the need to move objects on the scene, should be made to mark the drawing of the scene sketch and make a written record. Right
50. Unqualified converter gas through the three-way valve to the gas cabinet for dispersion. Wrong
51.gas poisoning has stopped breathing, should immediately do artificial respiration and use of life support device. Wrong
52. Enterprises should strengthen the workers' awareness of safety risks and responsibilities, and do not carry out safety warning education to enhance the workers' conscientiousness in complying with the rules of operation. Wrong
53. New gas pipeline gas delivery, the compensator tension should be maintained before the factory. Wrong
54. Roots blower is also a gas pressurization station selected a pressurized equipment, its pressure is generally higher than the single-stage centrifugal blower. Wrong
55. Blast furnace gas pipeline color ring color code, can be used gold. Wrong
56.CO gas detection alarms for 2 years. Wrong
57. Check the gas alarm, hydrogen alarm, oxygen meter, air respirator, walkie-talkie at the time of shift handover to ensure that they are in normal working condition. Right
58. Work in high temperature, high humidity and harsh environments are prone to heat stroke, and other symptoms.
59. The working principle of the blast furnace gas dry dust collector is to utilize the heaviness of the dust particles in the gas to separate from the gas to achieve the purpose of dust removal. Right
60.When the gas pipes, valves and water seals are frozen, the frozen blocked parts can be baked with fire. Right
61. Employers should give job allowance to workers who are exposed to occupational disease hazards. Right
62.The gas in each gas pipe of a mixing station can be strung on each other. Wrong
63.If a worker is diagnosed as suffering from an occupational disease, but the employer does not participate in work-related injury insurance in accordance with the law, the worker and the employer shall bear the responsibility for his or her medical treatment and livelihood **** together. Wrong
64. gas fire should be quickly and gradually reduce the gas pressure, through a large number of steam or nitrogen, in order to dilute the gas concentration and reduce the fire. Right
65. Employees of the enterprise have the right to be informed of the work position, the place of risk factors and risk management points. Right
66.The converter gas recovery process has two kinds of wet and dry methods. Right
67.Gas facilities should be clearly divided into responsible management area. Right
68.Gas cabinet maintenance with air replacement of inert gas qualified, the discharge pipe or manhole should be left open to prevent overpressure due to temperature changes. Wrong
69. Employers should be equipped with full-time safety management personnel responsible for the unit's prevention and control of occupational diseases. Wrong
Two multiple-choice questions
1. Coal vapor poisoning, fire, explosion and massive leakage of gas and other accidents, should be reported immediately (A ).
A) dispatch office and gas protection station
B workshop director
(C) watch commander
2. In the use of gas protection apparatus maintenance, oxygen respirator pressure is lower than (a ) should be instantly to the gas protection station to inflate
A) 10MPa
( B 8MPa
C) 5Mpa
3. When the pipeline in the trench crosses other pipelines, the crossed pipeline should be put into the airtight casing, and the length of the casing sticking out of the two walls of the trench should not be less than ( b) mm.
( A) 100
( B) 200
C) 300
4. The high-pressure blast furnace from the residual gas discharge pipe or pressure-reducing valve group counting The effective height of the water seal of the drain of the net gas main of the plant within 300m should be not less than ( b ) mm.
A 2000
B 3000
C) 4000
5. The service life of the sealing rubber of the cylinder-type diluted-oil dry cabinet is preferred to be more than ( B ) years.
A) 10
(B15
(C) 20
6. In the use of gas protection equipment maintenance, air respirator pressure is lower than (C ) should be instantly inflated to the gas protection station
A) 10Mpa
( B) 15MPa
(C) 20Mpa
7. According to the toxicity of CO gas and the actual situation of the industrial site, should, at least, set (b) alarm
(A first
B second
C third
8. With nitrogen to replace the hydrogen pipeline and equipment, the oxygen content of less than ( B ) for replacement of qualified.
(A) 0.01
(B) 0.005
(C) 0.02
9. Underground gas pipeline flange should (B).
(A) randomly set
B) set in the valve well
C is not allowed to be set
10. The length of the delivery pipe of the long-tube respirator should not be greater than ( ), and if it exceeds it, it should be tested according to the instructions to ensure the safety and comfort of use.
A 50 meters
B) 80 meters
C 60 meters
11.CO gas belongs to the inorganic toxic gases, and its detection principle is preferred ( A)
A) ECD
B PID
(C MOS
12.Fixed blind maximum stress point is: (B)
A ) all the way to the end of the tube.
A) Positive pressure;
B) Moxibustion pressure
C) Positive pressure or moxibustion pressure
14. Where there is a possibility of gas leakage from the gas pressurizer, (C) check it at least once with a leak detector or by applying soapy water.
A) daily
(B weekly
C) monthly
15. Gas pressurizers should be inspected for leaks in all connections and isolation devices after servicing and delivering gas (A ).
A) gas
B nitrogen
(C) air
16. The higher the content of carbon monoxide in the gas, the greater the possibility of poisoning, the following gas, the risk of poisoning from high to low is ( B ).
A. Coke oven gas, converter gas, blast furnace gas
(B) converter gas, blast furnace gas, coke oven gas
(C) blast furnace gas, converter gas, coke oven gas
17. Hydrogen system replacement end, the content of oxygen or hydrogen in the system must be analyzed for a continuous (C) times.
(A) 1
B2
C3
18. coke oven gas pipeline pressure is (B) mmH2O.
A) 800
B )630
C) 1800
19. gas maintenance using gas welding and cutting operations when the oxygen and acetylene bottles away from the ignition operations The location should not be less than (C) meters.
(A8
B9
C10
20. According to the harmful effects of harmful gases on the human body, the following gases are purely asphyxiating gases (A)
(A) nitrogen
(B) carbon monoxide
(C) hydrogen sulfide
21. Gas ( A ) accidents occur more often, in the recovery, purification, transportation and use of various links, may occur,
A poisoning
B fire
C explosion
22. gas pipeline and accessory connections can be used to connect the flange other parts of the connection should be used as far as possible ( A ).
A welding
B valves
(C) bolts
23. gas facilities maintenance, the space CO concentration of 80PPm, maintenance personnel shall not be more than (B) minutes of continuous operation.
A) 20
(B) 30
C) 40
24. The following do not belong to the stator components of the TRT ( D)
(A left and right bearing boxes;
(B regulating cylinders;
C diffuser;
D disk gear
25. The type of gas pressurizer that requires anti-surge measures is ( B).
(A Roots Blower
B Centrifugal or Axial Flow
C Piston Compressor
26. Mann type cabinet into the piston. On the side plate manhole diameter should not be less than (B) mm.:
A) 500mm
( B 600mm
(C) 700mm
27.Gas equipment or pipeline with nitrogen replacement, should be opened first (B).
(A) Discharge pipe gate valve
(B gas brush head valve
C nitrogen valve
28.Breathing gas cylinder is a high-pressure cylinder, the filling pressure should be ( B).
(A) should be lower than the rated pressure of the cylinder, safe.
(B) match the rated pressure of the cylinder.
C summer lower - - some, to prevent danger.
29. Calibration is the use of (A) the standard of the detector for the degree of the process, so as to establish the detector output and input quantities of the corresponding relationship, also known as calibration
A) high precision,
(B low precision
C) the same precision
30. overhead gas pipeline near the high-temperature heat source and pipeline below the frequent presence of When the hot objects loaded vehicles stay under the pipeline, should take ( C ) measures.
A fire
(B) explosion-proof
C) insulation