question bank source: Production Safety Simulation Examination Yitong Official Account Mini Program
2022 Electrician (Advanced) Operation Examination Questions are Electrician (Advanced) Examination Questions New Version Textbook Outline Question Bank! The 2022 Electrician (Advanced) Operation Certificate Examination questions and online mock exams are based on the Electrician (Advanced) Examination textbooks. The Electrician (Advanced) Review Question Bank passes the one-to-one wrong questions in the production safety simulation exam.
1, [Single choice question] After the overhaul of of the 10KV oil-immersed voltage transformer, the AC voltage test voltage standard is (). (A)
A, 22KV
B, 28KV
C, 38KC
D, 50KV
2, [Single choice question] The "National Power Supply and Use Rules" stipulates the voltage deviation of the power supply department to the user's power receiving terminal, and what is the allowable value of 35KV and above ( ). (D)
A, +5%
B, -10%
C, ±7%
D, ±5%
3, [Single choice question] Three-phase bridge semi-controlled rectifier circuit has good balance, high efficiency, and the phase shift range is ( ) degrees. (D)
A, 0-90
B, 0-120
C, 0-150
D, 0-180
4, [Single choice question] The maximum conduction angle of a three-phase bridge semi-controlled rectifier circuit is (). (B)
A, 90°
B, 120°
C, 150°
D, 180°
5, [Single choice question] The following ( ) items violate the safety measures for the shut-off operation. (B)
A. The operation ticket system must be implemented for the reverse switch operation
B. It can be used to pull and close the knife switch
C. It is strictly forbidden to close the ground wire
D. In thunderstorm, the reverse switch is prohibited
6. [Single choice question] The following statements about motor installation are correct. (D)
A. The motor installed horizontally only needs to be vertically horizontally
B. The motor installed horizontally only needs to be vertically and horizontally
C. The motor of axis transmission is as long as the motor is axially in a center line.
D. The motor installation must be vertically and horizontally horizontally corrected and transmission device correction
7. [Single choice question] Which of the following debugging methods for thyristor inverters is correct (). (A)
A. First debug the trigger circuit, then debug the main circuit
B. First debug the main circuit, then debug the trigger circuit
C. The main circuit and trigger circuit are simultaneously debugged
D. First check DC, then check AC
8. [Single choice question] Complementary symmetric OTL power amplifier circuit Each transistor bears the highest reverse voltage is (). (B)
A, 2.5EC
B, 2EC
C, Ee
D, 0.5Ee
9, [Single choice question] To determine the size of induced electromotive force , you need to use ( ). (A)
A, Faraday law
B, Lenz's law
C, Ampere rule
D, Ohm's law
10, [Single choice question] When making cable terminal , the oil-resistant rubber tube should be placed at the distance of ( ) at the offline root. (C)
A, 10mm
B, 15mm
C, 20mm
D, 25mm
11, [Single choice question] The signal input method of the input end of the adder is the following ( ). (B)
A, in-phase input
B, in-phase input
C, dual-term input
D, none of them are
12. [Single choice question] When the water sample is too dark in the determination of chloride, the following measures should be taken ().(B)
A, add calcium hypochlorite;
B, add 1g sodium carbonate to 100ml water sample and evaporate dryness, and then dissolve the dry matter in distilled water and then measure it;
C, filter;
D, add alum for precipitation
13, [Single choice question] Before the demolition project is constructed, the construction worker must be briefed in writing (). (D)
A, production
B, mass
C, construction
D, security technology
14, [Single choice question] The two stable states of a bistable circuit are (). (A)
A. One tube is at reliable cutoff, one tube is at reliable saturation
B. Both tubes must be at cutoff
C. Both tubes must be at saturation
D. Both tubes are at stable
15. [Single choice question] It is found that the oil-eoscopic high-pressure oil switch in operation is seriously exposed to oil, and the oil level drops below the oil level line. How should we deal with it (). (C)
A, manually cut the oil switch
B, refuel immediately
C, cut the load
D through the upper circuit breaker, cut the oil switch
16 through the remote device
16, [Single choice question] When the synchronous motor is started asynchronously using full pressure, when the rotor speed reaches ( ) times the synchronous speed, DC excitation is passed through, and the starting resistor is cut off. (B)
A, 0.9
B, 0.95
C, 0.85
D, 0.8
17, [Single choice question] As shown in the figure, what does this icon represent?
(B)
A, fulcrum too far
B, fulcrum slipping
C, uneven force
D, spudger too thin
18, [Single choice question] If working on the secondary circuit of the substation, if all high-voltage equipment is out of power or partial power outage, you should fill in the work ticket ( ) (A)
A, the first
B, the second
C, the third
D, there is no need to fill in
19, [Single choice question] For the grounding current 56-10KV water generator set, the stator winding single-phase grounding adopts ( ) protection method. (C)
A, use an open triangle voltage transformer to send out the voltage signal
B, install current relay
C on the secondary neutral line of the three-phase current transformer, use zero-sequence current transformer
D, no requirements
20, [Single choice question] The settings of occupational disease protection facilities in the workplace should (). (B)
A, set
B according to national standards, adapt to occupational disease hazard protection
C, set
D according to production scale, adapt to safety standards
21, [Single choice question] The voltage amplification ratio of the emitter output ( ). (D)
A, greater than 1
B, less than 1
C, equal to 1
D, approximately equal to 1
22, [Single choice question] The stroke of the oil-less switch spring buffer is generally determined by how much is at the closing position ( ). (C)
A, 10±1mm
B, 12±1mm
C, 14±1mm
D, 15±1mm
23, [Single choice question] The opening time of the circuit breaker is generally (). (C)
A, 0.01～0.03s
B, 0.03～0.06s
C, 0.06～0.12s
D, 0.15～0.3s
24, [Single choice question] When crystal transistor is in ( ), the current IC flowing through the collector is ≈0, which is equivalent to the switch being turned off. (B)
A, saturated
B, cut off
C, amplified
D, over-loss
25, [Single choice question] Hydraulic generators are generally made ().(D)
A, two-pole stable pole
B, two-pole convex pole
C, four-pole stable pole
D, multi-pole convex pole
26, [Single choice question] Eddy current is a type (). (C)
A, induced voltage
B, induced electromotive force
C, induced current
D, self-induced electromotive force
27, [Single choice question] The bearing grease of Rolling bearing should be replaced when the bearing grease lasts ( ) hours. (D)
A, 1000~1500
B, 1500~2000
C, 2000~2500
D, 2500~3000
28, [Single choice question] What are the causes of power cable failure (). (D)
A, mechanical damage, insulation moisture, insulation aging
B, insulation moisture, insulation aging, protective layer corrosion
C, overvoltage, overheating
D, mechanical damage, insulation moisture, insulation aging, protective layer corrosion, overvoltage, overheating
29, [Single choice question] The contacts of vacuum circuit breaker are often taken (). (D)
A, bridge contact
B, finger contact
C, braided contact
D, docking contact
30, [Single choice question] The magnetic field is (). (A)
A, the area where magnetic force is affected by magnets
B, magnetic flux per unit area
C, electromagnetic induction effect
D, the magnetic permeability coefficient of free space
31, [Single choice question] The possible reason why the economizer in the imported water is higher than the dissolved oxygen content in the outlet water of deaerator is () (D )
A, chemical deoxygenation effect is not good
B, deoxygenation effect is not good
C, deoxygenation effect is not good
C, deoxygenation water distribution is not uniform
D, water supply pump is not tightly sealed
32, [Single choice question] The scaffolding board laying of the scaffolding operation layer is (). (C)
A, you can not spend
B, you should fill it. Stable
C, should be covered and laid, and should not exceed 120-150mm
D, should be covered and laid, and there should be no protection at 200-300mm away from the wall, and
33, [Single choice question] In the engine, in order to ensure the sealing of the piston ring and prevent gas from leaking from the end gap of the piston ring, when installing the piston ring, be sure to press the cut end gap of each piston ring (). (B)
A, sequential alignment
B, simultaneous alignment
C, simultaneous alignment.
34, [Single choice question] bridge crane , gantry crane , door seat crane regular inspection cycle: () once a year. (C)
A, half a year
B, one
C, two
35, [Single choice question] () is the main evaporation heating surface of the boiler. (C)
A, superheater
B, preheater
C, water-cooled wall
D, reheater
36, [Single choice question] Rigging, scaffolding, hanging basket, hanging cage, platform and other equipment used in hanging operations must be () or verified before it can be used. (D)
A, safety officer checks
B, construction personnel accepts
C, first try
D, technical identification
37, [Single choice question] The air temperature of the cooling gas outlet of the air-cooled generator in operation should not exceed (). (B)
A, 100℃
B, 75℃
C, 85℃
D, 90℃
38, [Single choice question] After the power-on coil is inserted into the core , the magnetic flux in the coil will ( ).(A)
A, increase
B, reduce
C, unchanged
D, and may reduce
39. [Single choice question] The bending degree of the steel ring connecting the concrete pole shall not exceed the electric pole ( ). (A)
A, 2/1000
B, 3/1000
C, 5/1000
D, 6/1000
40, [Single choice question] The resistance-capacitance-shift phase bridge trigger circuit is suitable for circuits of ( ). (D)
A, high power
B, high power and control accuracy are not high
C, high power and control accuracy are high
D, low power and control accuracy are not high
41, [Single choice question] Article 86 of the " Special Equipment Safety Law of the People's Republic of China " stipulates that special equipment production, operation and use units use personnel who have not obtained the corresponding qualifications to engage in special equipment safety management, testing and operations. Order to correct the problem within a time limit; if the correction is not corrected within the time limit, (). (B)
A, revoked business license
B, ordered to stop using relevant special equipment or suspend production and business rectification, and impose a fine of not less than RMB 10,000 and not more than RMB 50,000
42, [Single choice question] The resistance-capacitance-shifting phase trigger circuit is suitable for single-phase controllable rectifier devices of ( ). (D)
A, high power
B, high control accuracy requirements
C, low power, high control accuracy requirements
D, low power, low control accuracy requirements
43, [Single choice question] The cause of tripping failure of high voltage circuit breaker , from an electrical analysis, which of the following reasons may be (). (B)
A, is the opening connection plate position too low
B, is the operating power supply voltage too low
C, the impact force of the opening core is insufficient
D, the opening core stroke is too small
44, [Single choice question] The oil level in the high-pressure oil switch cannot be too high, and it is generally required that the buffer space in the oil tank be the switch volume ( ). (D)
A, 0.01
B, 0.03
C, 0.05
D, 0.07
45, [Single choice question] When high-voltage motor is equipped with undervoltage protection device, it is important to use the 'safe production simulation test' ' motor ' to set the tuning time limit ( ). (D)
A, 0.5S
B, 0.6～1.0S
C, 5S
D, 6～10S
46, [Multiple choice question] Water-cooled walls are divided into (). (ABC)
A, light pipe water-cooled wall
B, membrane water-cooled wall
C, pin pipe water-cooled wall
47, [Multiple choice question] The erection and dismantling of protective shed should comply with () regulations. (ACD)
A. It is strictly forbidden to remove
B up and down at the same time. Set up guardrails
C. Set up warning areas
D. Send special personnel to monitor
E. Set up signs
48. [Multiple choice question] Which of the following components are the driving system of a yard car that uses full hydraulic transmission? () ( AB )
A, hydraulic oil pump
B, hydraulic motor
C, clutch
D, torque converter
49, [Single choice question] According to statistics, most of the causes of safety accidents in lifting machinery are caused by (). (A)
A, illegal operations
B, equipment failure
C, negligence
50, [Single choice question] According to the " Construction Project Safety Management Regulations ", the installation and dismantling of construction cranes and overall lifting scaffolding, formwork and other self-lifting installation facilities shall be prepared, and () shall be formulated, and shall be supervised by professional and technical personnel on-site.(C)
A, safety precautions
B, safety supervision measures
C, safety construction measures
D, safety protection measures
51, [Multiple choice question] The following safety responsibilities of the construction unit are correct (). (ABCDE )
A. The construction unit shall engage in new construction, expansion, reconstruction and demolition of construction projects. It shall meet the conditions stipulated by the state, such as registered capital, professional and technical personnel, technical equipment and production safety, obtain the corresponding level of qualification certificate in accordance with the law, and undertake the project within the scope of its qualification level license. The person in charge of the construction unit shall be fully responsible for the production safety of the unit in accordance with the law. The construction unit shall establish and improve the production safety responsibility system and production safety education. Training system, formulate safety production rules and operating procedures, ensure the investment of funds required for the safety production conditions of the unit, conduct regular and special safety inspections on the construction projects undertaken, and make safety inspection records. The construction unit shall establish a safety production management agency and equip full-time safety production management personnel. If the construction project is subject to general contracting, the general contractor shall be responsible for the safety production at the construction site.
52. [Multiple choice question] "Safety production" Production simulation test "In the furnace thermal power calculation method, () is used to describe the characteristics of radiation heat exchange between the furnace heating surface and the flame. (ABC)
A, angle coefficient
B, thermal effective coefficient
C, pollution coefficient
53, [Single choice question] Yuanguang Construction Group is a large construction company. According to the relevant provisions of the "Production Safety Law of the People's Republic of China" and the "Regulations on Safety Licenses of the People's Republic of China", please determine whether the following statement is correct:
(1) The production safety license is stipulated by the unified style of the production safety supervision and management department of the State Council. () ( A )
A, correct
B, Error
54, [Multiple choice question] Building materials, equipment and equipment, on-site products, semi-finished products, finished products, components, etc. should be stacked strictly in the designated locations of the on-site floor plan and hang signs, and indicate (). (BCD)
A, size
B, name
C, variety
D, specification
E, color
55, [Multiple choice question] The measures that can be taken to burn poor quality coal are (). (ABD)
A, use hot air to deliver powder
B, increase the combustion area temperature
C, use higher primary wind speed
D, use finer coal powder fineness
E, classified air distribution
56, [Single choice question] The "Special Equipment Safety Law" stipulates that during the rental period, the obligations for use management and maintenance of special equipment shall be borne by (), unless otherwise provided by law or agreed by the parties. (B)
A, user unit
B, rental unit
C, property company
D, rental unit
57, [Multiple choice question] In the climbing work, the following () does not have anti-slip measures and cannot climb high. (ABC)
A, scaffolding
B, scaffolding
C, ladder
D, lighting
58, [Single choice question] When braking in the field, the steering wheel must be stabilized to prevent (). (C)
A, braking distance is too long
B, brake self-locking
C, brake "offset"
59, [Multiple choice question] The surface of the steel bar should be clean and without damage. Before use, the ( ) sticking on the surface should be cleaned. Rebars with granular or flaky rust shall not be used; when there are serious pits and spots on the surface of the steel bar after removal and the cross-section has been damaged, it should be downgraded or removed without use.(ABCD)
A, oil stain
B, soil
C, patent skin
D, floating rust
E, paper
60, [Multiple choice question] Requirements in the "Ten No Hanging" system (). (ACD)
A, overloaded without hanging
B, flammable and explosive dangerous goods do not hang
C, sharp angles and blade angles do not hang
D, illegal commands do not hang
61, [Single choice question] The "Special Equipment Safety Law" stipulates: The installation, transformation, and major repair process of elevators must go through (). The procedure is not fulfilled or the qualification standards are not met, and shall not be delivered for use. (C)
A, loan
B, discussion
C, supervision and inspection
D, research
62, [Multiple choice question] There are three ways for poisons to invade the human body: (). (ACD)
A, respiratory system
B, visual system
C, skin absorption
D, digestive system
63, [Multiple choice question] The gearbox of the car cannot be mounted, it may be (). (ABC)
A, clutch separation is not thoroughly
B, gear wear is severe
C, fork severely wear is severe
D, power is insufficient
64, [Judgement Question] Project quality problems are generally divided into project quality defects, common engineering quality problems, and engineering quality accidents. (√)
65. [Multiple choice question] The traction rope compensation device is used to compensate for the imbalance of weight on both sides of the car and counterweight caused by the traction rope during the elevator operation. Generally, elevators with relatively high floors are used. (√)
66. [Judgement Question] Each layer of the waterproof layer should be continuously constructed, and the plain ash layer and the mortar layer are not allowed to be completed on the same day. (×)
67. [Judgement Question] coarse aggregate must be harvested with a production license. Safe production mock exam passes one by one. The stone yard or construction unit processes it by itself. (√)
68. [Judgement Question] The "Hypermanent Supervision Regulations for the Safety Supervision of Crane Machinery " stipulates that the user unit of Crane Machinery shall use a unit with corresponding license qualifications to manufacture and pass the supervision and inspection. (√)
69. [Judgement Question] When the input terminal of the "non-" gate circuit is high, the output is high. (×)
70. [Multiple choice question] The lower the center of gravity height of the forklift synthesis, the more beneficial it is for longitudinal and horizontal stability. () ( √ )
71. [Judgement Question] The ambient temperature of the gas storage cylinder warehouse should be -25~40℃. () ( √ )
72. [Multiple choice question] The visual quality of the project should be inspected by the acceptance personnel on-site and should be confirmed to be consistent. (×)
73. [Multiple choice question] When making the middle head of the cable, the tensile strength is required to be no less than 50% of the cable core. (√)
74. [Judgement Question] hot water boiler should be equipped with an alarm device with an outlet water temperature that is too low. (×)
75. [Multiple choice question] Forging hook can have no mark content. (×)
76. [Multiple choice question] The output pulse width of a monostable circuit depends on the size of the charging capacitor. (√)
77. [Multiple choice question] The single-junction transistor trigger circuit can generate a very wide pulse and has a large phase shift range. (×)
78. [Judgement Question] The "Special Equipment Safety Law of the People's Republic of China" stipulates that if a violation of the provisions of this Law, one shall bear civil compensation liability and pay fines. If the property is not sufficient to be paid at the same time, the fines and fines shall be paid first. () ( × )
79. [Multiple choice question] There is no need to operate the single operation of the substation pull-up switch. (√)
80. [Multiple choice question] When the synchronous motor is started, when the speed is close to its synchronous speed, the purpose of the excitation winding to pass into DC excitation is to generate the synchronous torque .(√)
81. [Judgement Question] The fixing device of the steel wire rope at the end of the roll, when the wedge block is fixed, the taper of the wedge block and the wedge cover should be inconsistent. (×)
82. [Judgement Question] () The "Special Equipment Safety Law" stipulates that special equipment safety management personnel, testing personnel and operating personnel shall strictly implement safety technical specifications and management systems to ensure the safety of special equipment. (√)
83. [Multiple choice question] When the generator stator winding is internally cooled by water, the stator coil is composed of hollow conductors, and the cooling water passes through the center of the conductor at a certain flow rate, and the conductor is directly cooled. (√)
84. [Multiple choice question] Too much humidity will not reduce the quality of steam. () ( × )
85. [Multiple choice question] If there are cracks in the pulley, weld and repair it, continue to use it. (×)
86. [Multiple choice question] When the oil color of the transformer in operation changes too fast and carbon quality appears in the oil, the transformer should be stopped immediately and processed. (√)
87. [Judgement Question] "Consciously abide by various rules and regulations, strictly implement operating procedures, and create a civilized and safe working environment" is one of the basic requirements of socialist professional ethics . (√)
88. [Judgement Question] The content of active silicon can only be determined by colorimetric method. () ( √ )
89. [Multiple choice question] () Rated lifting weight refers to the maximum weight of the heavy objects or materials (excluding split spreaders and riggings) that the crane can lift. (×)
90, [Multiple choice question] or "Safety Production Simulation Exam" gate circuit logic expression is P=A?B. (×)
91. [Multiple choice question] No. 45 steel is high-quality carbon steel. can be treated by annealing to reduce its hardness and make it easier to cut. (√)
92. [Judgement Question] The surveying unit can only sign the foundation and foundation division (sub-division) project. (√)
93. [Multiple choice question] In air preheater , the flue gas flow is much larger than the air flow, because the air heated in the air preheater is only part of the flue gas. () ( √ )
94. [Judgement Question] New overhead lines should generally be accepted according to the following procedures: hidden project acceptance inspection, intermediate acceptance inspection, and completion acceptance inspection. (√)
95. [Multiple choice question] If a major fault occurs during use of the vehicle, the cause should be immediately identified and the fault can be continued after it is troublesome. For general faults, it is okay to continue to use it. () ( × )
96. [Judgement Question] The starting current of the power line is adjusted according to the maximum short circuit current at the end of the protected line. (√)
97. [Judgement Question] The voltage measurement method is a method to find the fault point by measuring the critical voltage (or potential) when the device or circuit is powered on and compared with the normal value. (√)
98. [Multiple choice question] Electromagnetic induction is the phenomenon in which a changing magnetic field generates induced electromotive force in a conductor. (√)
99. [Multiple choice question] When installing a compensation capacitor, it is necessary to pay attention to the good contact between the electrical circuit and the grounding part. (√)
100. [Multiple choice question] The resistor-capacitance coupled amplifier is an amplifier used to amplify AC voltage signals. (√)
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