The source of the question bank: the safety production simulation exam one-touch public account applet
The hydrogenation process operation simulation test test questions are prepared by the public number safety production simulation test in one pass combined with the national examination outline and the national examination question bank. The hydrogenation process operation simulation test test questions random test simulation test training needs to be completed within the specified time. Answering questions for the simulation test system of hydrogenation process. The hydrogenation process operation simulation test questions are clicked on the public number safety production simulation test pass to click the hydrogenation process operation mobile phone synchronous practice. The hydrogenation process homework test questions have been updated to the latest question bank! The hydrogenation process homework simulation exam can help you quickly pass the 2020 hydrogenation process homework exam.
1. [Judgment question] When the pipeline and the connected system have a certain pressure, the blind plate can be plugged. (×)
2. [Judgment] The ways of personal poisoning are respiratory tract, digestive tract and skin. (√)
3. [Judgment] Chemical protective clothing is to prevent chemicals from entering the body through the skin. (√)
4. [Judgment question] The pressure drop of a fixed feedstock oil filter caused by a coking diesel in a hydrogenation device rises too fast and it is too late to switch. Once, the liquid level of the feedstock oil buffer tank after filtration drops to the interlock value, and the device lowers the device. Only the throughput can prevent the device from interrupting raw oil. The main reason for this attempted accident was the management personnel's incomplete analysis of the risk factors of the processing technology changes. (√)
5. [Judgment] Nickel carbonyl is a low-toxic, non-volatile liquid. (×)
6. [Judgment question] After the pressure of the low-pressure separator is normal, the blind plate on the top nitrogen line can still be placed in the open position to facilitate the handling in the event of an accident. (×)
7. [Judgment question] When the packing tower opens the manhole, the operator generally has rich work experience, and is familiar with and masters the order of opening the manhole, so there is no need to explain the safety technology to them. (×)
8. [Judgment] When working in an area contaminated with hydrogen sulfide, an air respirator must be worn, and the protective equipment can be removed after the operation is completed. (×)
9. [Judgment question] Units with automatic firefighting facilities shall conduct comprehensive inspection and testing of their automatic firefighting facilities from time to time, and issue test reports, which shall be filed for future reference. (×)
10. [Judgment] The oxygen content of the furnace hearth of the heating furnace is displayed normally, and the test result shows that the CO content in the flue gas is too high, which may be caused by furnace air leakage. (√)
11. [Judgment question] One of the prerequisites for hydrocracking catalyst to passivate low nitrogen oil is that the maximum temperature of each reactor bed is not more than 150 ℃. (√)
12. [Judgment] When the bearing temperature of the centrifugal pump is too high, it can be eliminated by changing the lubricant. (×)
13. [Judgment question] After the fire is extinguished, the igniting unit shall protect the scene, accept the accident investigation, truthfully provide the information of the fire accident, and assist the public security fire control agency to investigate the cause of the fire. (√)
14. [Judgment] The opening of the steam drum water replenishing control valve has been increasing, and the steam drum liquid level has continued to fall. This may be due to the failure of the valve spool of the control valve. (√)
15. [Judgment] Interruption of medium-pressure steam will shut down the circulating hydrogen compressor. (√)
16. [Judgment] When cleaning, you can use water to rinse live equipment such as motors. (×)
17. [Judgment] The poisoning of the catalyst is caused by the pollution and deactivation of the catalyst. (√)
18. [Judgment question] It is strictly forbidden to pour high-temperature and high-pressure equipment, flanges, pipelines and valves with water. In the event of a leak and fire, you can only use nitrogen to cover and extinguish the fire. (×)
19. [Judgment] The metal shell grounding of all electrical equipment is the protective grounding to avoid personal electric shock. (√)
20. [Judgment] The cavitation and air binding of the centrifugal pump are caused by the same reason. (×)
21. [Judgment question] The purpose of injecting cold hydrogen into the hydrogenation unit is to adjust the temperature of the catalyst bed to make its distribution more reasonable and more efficient use of the catalyst to achieve long-term operation. (√)
22. [Judgment] The portable fire extinguisher should be installed in the fire extinguisher box or on the hook or bracket. (√)
23. [Judgment] Asbestos total dust / fiber belongs to the catalog of highly toxic materials. (√)
24. [Judgment] Accident emergency drills are generally to be checked, as long as the information is complete. (×)
25. [Judgment question] When the heater burns the burner, you can first light the main burner and then the long light. (×)
26. [Judgment question] During a major overhaul of a hydrogenation unit, the workers dredged inside the high-pressure separator. The ferrous sulfide on the pipe wall spontaneously ignited causing some burns to the workers. The cause of the accident was the incomplete passivation of ferrous sulfide during parking. (√)
27. [Judgment] The operating points of the compressor barring machine must be completely exhausted, and it is strictly forbidden to bring the barring machine. (√)
28. [Judgment question] After the overpressure of the reaction system, the root valve of the safety valve in the system should be closed immediately to prevent the safety valve from being damaged. (×)
29. [Judgment question] Sulfur dioxide can combine with some colored substances to form unstable colorless substances, which can be used to bleach some organic substances. (√)
30. [Judgment] The fractionation system of the hydrogenation unit starts the oil collection stage. After a period of oil collection, the liquid level in the tower still has not been displayed, and the reason must be checked on site. (√)
31. [Judgment question] When the oxygen content in the toxic area is less than 18% or the volume of the toxic gas is greater than 2%, any canister does not play a protective role. (√)
32. [Judgment] Personal protection generally does not include hand protection. (×)
33. [Judgment question] The pressure of the heating furnace fuel gas rises gradually when the pressure of the pipe network is stable and the opening of the regulating valve is unchanged. The possible reason is that the burner is blocked. (√)
34. [Judgment] The control of the three wastes should be considered in accordance with the four priority orders of emissions treatment and discharge, emissions recycling, and reduction of pollution sources. (×)
35. [Judgment] The route of ammonia damage is respiratory inhalation. (√)
36. [Judgment] The main function of lubricating oil is to reduce the friction between the bearing bush and the bearing, and take away the heat generated by the bearing bush. (√)
37. [Judgment] The allowable concentration of carbon monoxide in the air is 30mg / m³. (√)
38. [Judgment question] Toxic substances mainly enter the human body through three ways: breathing, skin, and digestive tract. (√)
39. [Multiple Choice Question] When the lubricating oil pump of the reaction feed pump is stopped, it should be (). (B)
A. Turn off the power switch
B. First switch the "manual and automatic gear" to the "manual" position, turn off the power switch, and then close the oil pump inlet and outlet valves
C. First close the pump outlet valve, then turn off the power switch
40. [Multiple Choice Question] The reason for the rise of the top pressure in the fractionation tower controlled by the total condensation tower pressure cannot be (). (B)
A. Air cooling failure at the top of the tower
B. The raw material components become heavier, making the reaction depth smaller
C. The top of the tower is blocked by water cooling pipe
41. [Single-choice question] The passivating agent generally used for catalyst passivation during the start-up of the hydrocracking unit is (). (C)
A, dimethyl disulfide
B. Low nitrogen oil
C, anhydrous ammonia
42. [Multiple Choice Question] The place of mass transfer in the fractionation process is (). (B)
A. Tower
B. Tray
C, Togama
43. [Single-choice question] When the occupational disease hazard factors are detected in the workplace and it is found that the occupational disease hazard factors do not meet the national occupational health standards and hygiene requirements, the employing unit should immediately take corresponding treatment measures, but the national occupational health standards and hygiene requirements are still not met have to( ). (B)
A. Report to the safety production supervision and management department
B. Wear protective equipment that meets protection requirements
C. Stop operations that have occupational hazards
44, [single choice] In the operation of the heating furnace, when the fuel is burned, the amount of air required for general combustion is (). (B)
A, lower than the theoretical air
B, higher than the theoretical air
C. Same as theoretical air
45. [Single-choice question] The function of water injection before high-pressure air cooling is (). (C)
A. Lower the temperature of the reactant flow
B. Washing hydrogen sulfide
C. Amine salt generated by washing reaction
46. [Single-choice question] The reason for the overturning of the tray of the fractionation tower is that the statement in the following analysis is correct (). (C)
A. The liquid level indicator fails
B. Liquid level flooded tray
C. Large heating capacity at the bottom of the tower
47. [Multiple Choice Question] Regarding the description of the mechanism of action of the hydrogenation catalyst, the correct one is (). (C)
A. Ability to change chemical balance
B. The activation energy of the reaction cannot be changed
C, can change the reaction rate
48. [Multiple Choice Question] When the fractionation system has a short cycle, each column of the fractionation system should maintain a gradient of (). (A)
A. Pressure
B. Temperature
C, flow
49. [Multiple Choice Question] In order to control the large amount of reaction heat generated by the reaction, cold hydrogen is injected between each bed to control the temperature of each bed of the reactor, mainly to prevent the catalyst bed (). (C)
A, coking
B. Ditch flow
C, over temperature
50. [Multiple Choice Question] During the switching process of the high temperature pump at the bottom of the tower, a backup pump caused a seal leak due to too fast warm-up speed. The running pump also evacuated during the warm-up of the standby pump. The measures that are incorrect are (). (C)
A. Employee's training on heat oil pump switching should be strengthened
B. The speed of the hot oil pump is slow when it is preheated
C. Cleaning and running pump filter
The above are the types of test questions for hydrogenation process assignments. It supports test questions for precise hydrogenation process operations in various regions of the country, as well as practice test bank exercises such as safety qualification certificates, special operation certificate, and vocational skills identification.
