question bank source: Safety Production Simulation Examination Yidiantong public account applet
The 2022 G1 Industrial Boiler Stoker National Question Bank is a new examination question type for the G1 Industrial Boiler Stoker practice questions! The 2022 G1 Industrial Boiler Stoker Operation Certificate exam questions and answers are compiled based on the new version of the G1 Industrial Boiler Stoker syllabus. G1 Industrial Boiler Stoker Exam Simulation Questions can be found at any time through the Safety Production Simulation Examination website.
1. [Multiple choice questions] TSGG0001-2012 "Boiler Safety Technical Supervision Regulations" stipulates that the boiler () process shall be supervised and inspected by inspection and testing agencies in accordance with relevant safety technical specifications. (ABD)
A, installation
B, renovation
C, repair
D, major repair
2. [Multiple choice question] Which of the following factors will increase exhaust heat loss (). (AB)
A, the exhaust smoke temperature increases
B, the smoke exhaust volume increases
C, the exhaust smoke temperature decreases
D, the smoke exhaust volume decreases
3. [Multiple choice questions] The following are solid fuels : () and solid waste wait. (ABCD)
A, coal
B, oil shale
C, sugarcane bagasse
D, wood
4. [Multiple choice questions] According to TSGG0001-2012 "Boiler Safety Technical Supervision Regulations", the boiler use management records include (). (ABCD)
A, boiler and combustion and auxiliary equipment operation records
B, water treatment equipment operation and soda quality test records
C, boiler, combustion and auxiliary equipment inspection records
D, boiler, combustion and auxiliary equipment maintenance records
5, [Multiple choices Question] The "bulge" at the bottom of the drum of a horizontal externally fired shell boiler is due to the weakening of the bottom ( ), so attention should be paid to strengthening ( ) the sewage discharge. (AC)
A, thermal conduction
B, convection
C, regular
D, continuous
6. [Multiple choice question] When the organic heat carrier is in use, () appears in the appearance inspection, it should be stopped. (ABC)
A, obvious layering
B, obvious precipitation
C, obvious emulsification
D, obvious discoloration
7, [Multiple choice questions] thermal oil heating system points (). (BC)
A, mixed circulation system
B, open circulation system
C, closed circulation system
D, compound circulation system
8. [Multiple choice questions] The main features of forced circulation hot water boilers are (). (ABCD)
A, compact structure, less steel consumption
B, good hydrodynamic stability
C. If there is a sudden power outage during operation, the boiler water is easy to vaporize, resulting in water hammer
D, high power consumption
9, [Multiple choice questions] Organic The heat carrier may undergo a cracking reaction when exposed to high-temperature radiation in areas where circulation is disrupted or local flow velocity changes (). (ABD)
A, produce low boiling matter
B, form coke
C, reduce viscosity
D, may produce gas
10, [Multiple choice questions] The following phenomena may occur in organic heat carriers during the cooling process (). (ABD)
A, viscosity rise
B, oxidation
C, vaporization
D, solidification
11, [Single choice question] Transformers are generally divided into three types: power transformers , special transformers and (). (B)
A, power circuit breaker
B, relay
C, power meter
12, [Multiple choice question] The function of the chimney is (). (AB)
A, generate pulling force, inhale air, discharge smoke
B, diffuse smoke and dust
C, show industrialization
13, [Multiple choice questions] The main characteristics of heat pipes ().(ABCE)
A, has large heat conductivity
B, heat pipe isotherm
C, heat flow density range adjustment is large
D, heat pipe filterability
E, the heating section and cooling section of the heat pipe have completely reversible characteristics
14, [Single choice question 】Transformers are divided into two categories: () and current transformers. They are important equipment for measurement, protection and monitoring in the power supply system. (A)
A, voltage transformer
B, circuit breaker
C, isolating switch
15, [Multiple choice question] gas boiler front purge ends, program control does not ignite, possibly because () (AB)
A, electromagnetic Valve is blocked
B, the air volume is too small
C, the air volume is too large
D, the fuel pressure is too low
E, the ignition electrode does not spark
F, servo motor does not rotate
16, [Multiple choice questions] processed by sodium ion exchange The main feature of softwater is to remove (). (AB)
A, calcium ion
B, magnesium ion
C, salt content
D, colloid
17, [Single choice question]
The graphic symbol of diode is.
(A)
A,
B,
C,
18, [Multiple choice questions] light diesel oil (), () contains less sulfur and causes less environmental pollution, but is more volatile than heavy oil and has a fire hazard (). (ACD)
A, small viscosity
B, need to be heated
C, good fluidity
D, large
E, moderate
19, [Single choice question] The capacitor component group of a high-voltage single three-phase capacitor is generally connected inside the shell (). (A)
A, triangle
B, star
C, open triangle
20, [Multiple choice questions] The boiler user unit shall conduct an energy efficiency test on the boiler in use every (), and the test work should be carried out in conjunction with the boiler (). (AD)
A, two years
B, internal inspection
C, water pressure test
D, external inspection
21, [Single choice question] The wire joints are not tightly connected, which will cause the joint (). (A)
A, heating
B, insufficient insulation
C, non-conductive
22, [Single choice question] power cable is used to eliminate the increase in electric field intensity on the conductor surface caused by the roughness of the conductor surface, so that the insulation layer and Cable conductors with good contact are (). (A)
A, shielding layer
B, insulating layer
C, wire core (conductor)
23, [Multiple choice question] Boiler water circulation can be divided into two types: () and (). (BC)
A, intermittent circulation
B, natural circulation
C, forced circulation
D, continuous circulation
24, [Multiple choice question] The main methods of boiler flue gas desulfurization are (). (ABC)
A, dry desulfurization
B, semi-dry desulfurization
C, wet desulfurization
D, mechanical desulfurization
25, [Single choice question] RN2 type high-voltage fuse can be used for () protection. (A)
A, voltage transformer
B, power line
C, transformer
26, [Single-choice question] Exceeding the concentration of S02 and S03 will induce human respiratory diseases, corrode industrial equipment and buildings, and more seriously, cause (), damage plants , forest and ecological balance. (A)
A, acid rain
B, heavy rain
27, [Single choice question] TSGG0001-2012 "Boiler Safety Technical Supervision Regulations" stipulates that the installation location of the boiler and the boiler room should meet the relevant regulations of ().(D)
A, GB50041 " Boiler Room Design Code "
B, GB50016 " Building Design Fire Protection Code "
C, GB50045 " High-Rise Civil Building Design Fire Protection Code "
D, the above three standard provisions should all meet
28 , [Single choice question] According to TSGG0001-2012 "Boiler Safety Technical Supervision Regulations", a steam boiler with a rated evaporation capacity of 0.5t/h, on the water level meter or the steam and water connecting pipe between the water meter column and the drum () Install valves. (B)
A, can not
B, should
29, [Single choice question] According to TSGG0001-2012 "Boiler Safety Technical Supervision Regulations", when the organic heat carrier boiler is started in the cold state, during the system cycle heating process, the expansion tank When the medium temperature reaches ()℃, the organic heat carrier should be degassed and dehydrated. (A)
A, 110~120
B, 110~125
30, [Single-choice question] The inspection items of high-voltage switch cabinet include the () of switch cabinet in the correct position. (C)
A, circuit breaker
B, observation hole
C, locking device
31, [Single choice question] () signboards should be hung on the iron hook frames near the live equipment and on the ladders of the operating transformers above and below the staff. (B)
A. Stop, high pressure danger
B. No climbing, high pressure danger
C. Work here
32. [Single choice question] The density of the heated part of the steam-water mixture is smaller than the density of the unheated part of the water, thus forming a pressure difference (flow pressure) head). The method of causing water in a pot to flow is called (). (A)
A, natural circulation
B, forced circulation
33. [Single-choice question] A boiler that uses the heat discharged from industry as a heat source is called (). (C)
A, hot water boiler
B, steam boiler
C, waste heat boiler
34, [Single choice question] The body of the horizontal internal combustion chamber combustion boiler is mainly composed of (). (A)
A, head , pot shell, furnace, smoke pipe
B, drum, smoke pipe, water wall tube, downcomer
C, upper and lower drum, convection tube bundle, water wall tube, header
35 , [Single-choice question] In small and medium-sized boilers, while improving the combustion efficiency, it also reduces the blackness and () of the flue gas accordingly. (A)
A, smoke concentration
B, exhaust smoke temperature
C, sulfur dioxide concentration
36, [Single choice question] When the voltage acting on the human body increases, the resistance of the human body will increase (), resulting in a greater current and more harm to the human body. serious. (C)
A, unchanged
B, increased
C, decreased
37, [Single-choice question] In the layer burning furnace, the wind blowing in at high speed from above the grate is (). (B)
A, primary wind
B, secondary wind
C, third wind
38, [Single choice question] The capacitor should ( ) after the pointer swings when checking with a multimeter. (B)
A, stay still
B, gradually swing back
C, swing back and forth
39. [Single choice question] The sampling inspection of organic heat carriers in use should be carried out by (). (C)
A, user unit
B, manufacturer
C, qualified inspection unit
D, sales unit
40, [Single choice question] The purpose of regular discharge testing of safety valves is to prevent (). (C)
A, spring aging
B, lever deformation
C, valve core and valve seat adhesion
41. [Single choice question] When selecting the sensitivity of leakage protection device , it is necessary to avoid unnecessary accidents caused by normal ( ) operation and affect the normal power supply.(A)
A, leakage current
B, leakage voltage
C, leakage power
42, [Single-choice question] When maintenance equipment is powered off, in addition to completely disconnecting the power supply in all aspects, it is also necessary to open () to ensure that all aspects are "safe" There is rarely an obvious disconnect point in the production simulation exam. (B)
A, circuit breaker
B, isolating switch
C, vacuum circuit breaker
43, [Single choice question] For low-voltage distribution networks, when the power distribution capacity is below 100KW, the grounding resistance of the equipment protective grounding should not exceed ( )Ω. (A)
A, 10
B, 6
C, 4
44, [Single choice question] Two resistors are connected in series to the circuit. When the resistance values of the two resistors are not equal, then (). (C)
A, the one with a large resistance has a large current
B, the one with a small resistance has a small current
C, the currents of the two resistors are equal
45, [Single choice question] When the pressure of the heat transfer oil fluctuates, the temperature rise should be suspended, and the auxiliary exhaust valve should be opened, gradually Exhaust dehydration, wait until the heat transfer oil pressure stabilizes before closing the auxiliary exhaust valve to prevent the heat transfer oil (). (A)
A, high temperature oxidative deterioration
B, ejection
46, [Single choice question] The emission limit value of particulate matter in the air pollutants of newly built gas boilers is (). (C)
A, 50
B, 30
C, 20
47, [Single choice question] The dehydrogenation and polymerization of unsaturated organic compounds in organic heat carriers when they react with oxygen is called (). (A)
A, oxidation polymerization
B, oxidation
48, [Single choice question] The working system of organic heat carrier furnace is composed of (). (D)
A, heating system
B, combustion system (or heat supply system)
C, control system
D, and ABC together form
49. [Single-choice question] Diesel is divided into six specifications according to (). (B)
A, viscosity
B, freezing point ℃
C, flash point ℃
50, [Single choice question] () can explain the degree of change in the secondary voltage of the transformer, and is a data that measures the quality of the transformer's power supply. (B)
A, voltage waveform
B, voltage amplitude
C, voltage phase
51, [Single choice question] What flows in the water wall is (). (D)
A, flue gas
B, water supply
C, saturated steam
D, steam-water mixture
52, [Single choice question] water tube boiler refers to the flow of flue gas in the heating surface tube (). (B)
A, internal
B, external
53, [Single-choice question] Soda drinks, production safety. One of the common phenomena in the mock exam is (). (A)
A. The water level fluctuates sharply up and down, and the water level line is blurred.
B. The water level is higher than the maximum water level.
C. There is air and steam in the water supply pipe.
54. [Single-choice question] Installing the grounding wire must (), and contact Must be good. (A)
A, connect the ground terminal first, then the conductor (equipment) terminal,
B, connect the conductor (equipment) terminal first, then connect the ground terminal,
C, measure the ground resistance first, then connect the ground terminal
55, [Single choice question 】 In a circuit with resistors connected in series, the total resistance of the circuit is equal to (). (C)
A, the reciprocal of the sum of each series resistance
B, the average value of each series resistance
C, the sum of each series resistance
56, [Single-choice question] The special equipment safety supervision department regulates the use of safe and high-quality special equipment in this administrative region. Energy-consuming special equipment () conducts on-site supervision and inspection.(C)
A, facilities status
B, cost status
C, energy saving implementation status
D, monitoring status
57. [Single-choice question] Special operations personnel who fail to undergo specialized safe operation training and obtain corresponding qualifications as required are ordered to produce. business unit ( ). (A)
A, time limit for correction
B, fine
C, suspension of production and business for rectification
58, [Single choice question] On the steam pipe between the two cut-off valves connecting the boiler and the steam main pipe, the purpose of installing drain pipes and valves leading to the atmosphere is ( ). (C)
A, discharge air
B, discharge dirt
C, prevent water hammer phenomenon
59, [Single-choice question] The more appropriate method to shut down and maintain the heating hot water boiler is () (D)
A, pressure maintenance
B, wet Method maintenance
C, semi-dry method maintenance
D, dry method maintenance
60, [Single choice question] The size of the induced electromotive force in the coil , and the number of turns of the coil (). (A)
A, proportional
B, inversely proportional
C, irrelevant
61, [Single choice question] 110KV and below line protection measurement and control device , when the switch is in the trip position (), it will delay 10 seconds to report a TWJ abnormality. (A)
A, the line has flow
B, the line has no pressure
C, the line has pressure
62, [Single choice question] The conversion of boiler heat supply and evaporation is: 0.7MW is equivalent to () tons/hour, equivalent to () ten thousand Kcal/hour. (B)
A, 0.7,30
B, 1,60
C, 1,30
D, 0.7,60
63, [Single choice question] The signboard "No closing, someone is working" should be made ( ). (A)
A, red characters on a white background
B, white characters on a red background
C, green characters on a white background
64, [Single-choice question] The water level monitoring during the boiler startup process should be based on (). (B)
A, lowland water level meter
B, drum water level meter
C, electrical contact water level meter
65, [Single choice question] A maximum of ( ) wire joints are allowed in the pipe conductor. (C)
A, 2
B, 1
C, 0
66, [Single choice question] Under normal circumstances, the linear pole tower can only withstand (). (A)
A, the weight of wires, insulators, ice coating, etc. and the wind force
B, the tension of the wires along the line
C, the unbalanced tension of two adjacent wires
67, [Single choice question] In a highly corrosive place The wires should be properly () or take other anti-corrosion measures. (C)
A, reduce the cross-section
B, shorten the length
C, increase the cross-section
68, [Single-choice question] The capacity of the boiler water supply equipment must be () the boiler evaporation capacity, and the feed water pressure must be () the boiler operating pressure. (A)
A, greater than, greater than
B, less than, less than
C, equal, equal
69, [Single choice question] () is to transfer heat through electromagnetic waves , without the need for matter as a medium. (A)
A, radiation heat transfer
B, convective heat transfer
70, [Single choice question] lightning rod of the same height, the protection range of the mountainous area () the protection range of the plain. (C)
A, equal to
B, greater than
C, less than
71, [Single-choice question] Handover prescribed by our country. Safety production simulation exam is easy to pass. The current safety voltage is (). (B)
A, 220V, 42V, 36V, 12V
B, 42V, 36V, 12V, 6V
C, 380V, 42V, 36V, 12V
72, [Single-choice question] The greater the (), the greater the internal friction resistance to the flow of the organic heat carrier. The bigger.(A)
A, viscosity
B, density
C, precipitation value
D, carbon residue
73, [True or False Question] After using the multimeter, the switch can be placed in any position. (×)
74. [True or False Question] Current and magnetic field are inseparable. The magnetic field always exists along with the current, and the current is always surrounded by the magnetic field. (√)
75. [True or False Question] Employees of enterprises and institutions who do not have special operation certificates engage in special operations are illegal operations. (√)
76. [True or False Question] Electricians should do a good job in supervising power users working in special places. (√)
77. [True or False Question] Among a type of electrical load, loads that will cause poisoning, explosions, fires, etc. when the power supply is interrupted, as well as loads in particularly important places that are not allowed to interrupt the power supply, are called particularly important loads. () (√)
78. [True or False Question] The impulse current generated by a short circuit will produce a large electric force, the size of which can be used to verify the dynamic stability of electrical equipment when a short circuit occurs. (√)
79. [True or False Question] The right-hand rule is used to determine the direction of the induced current generated when a straight conductor moves through cutting magnetic field lines. (√)
80. [True or False Question] The size of the dielectric breakdown voltage between contacts has nothing to do with the power supply voltage. (√)
81. [Judgement Question] shakes the voltage generated by after shaking. The L terminal is the negative electrode and the E terminal is the positive electrode. (√)
82. [True or False Question] In a three-phase symmetrical circuit, the total active power is equal to the times of the product of the line voltage, line current and power factor "Safety Production Simulation Examination". (×)
83. [True or False Question] When using a fire extinguisher outdoors, the user should stand on the upwind side. (√)
84. [True or False Question] In order to prevent electric shock due to step voltage, personnel entering the fault point area should wear insulating shoes . (√)
85, [True or False Question] dry-type transformer refers to a transformer in which core and winding are immersed in insulating liquid. (×)
86. [True or False Question] After discovering that someone has been electrocuted, the hospital should be notified immediately to send an ambulance for rescue. Before the doctor arrives, on-site personnel cannot rescue the electrocuted person to avoid secondary injuries. (×)
87. [True or False Question] No matter what the circumstances, the transistor has the function of current amplification. (×)
88. [True or False Question] The return current of current relay divided by the operating current is called the return coefficient of the current relay. (√)
89. [True or False Question] To prevent personal electric shock, water cannot be used to extinguish electrical fires. (√)
90. [True or False Question] When using star-delta step-down starting, the starting torque is 1/3 of the starting torque when using delta connection directly. (√)
91. [True or False Question] If too much active power is transmitted in the system, it may cause the voltage loss in the system to increase and the voltage to drop. (×)
92. [True or False Question] The No. 1 electrician’s knife has a longer handle than the No. 2 electrician’s knife. (√)
93. [True or False Question] The function of the cable protective layer is to protect the cable. (√)
94. [True or False Question] A three-phase AC circuit has three alternating electromotive forces , and they have the same frequency and the same phase. ()( (√)
96. [True or False Question] The grounding wire must have a unified number and a fixed storage location. The storage location should also be numbered, and the ground wire number should be consistent with the storage location number. (√)
97. [True or False Question] Circulation stagnation can be divided into total circulation stagnation, branch circulation stagnation and local circulation stagnation. (√)
98. [True or False Question] The chimney uses the natural flow of hot flue gas to rise, and cold air to fall, to produce pulling force to suck in air and discharge smoke. This is called natural ventilation. .(√)
99. [True or False Question] The hot water boiler drum is filled entirely with water. The lower part of the single-drum steam boiler drum is filled with water and the upper part is steam. (√)
100, [True or False Question] Boiler overpressure will cause pressure parts to deform and leak. () (√)
supports accurate G1 industrial boiler furnace examination questions in various regions across the country, and supports safety qualification certificates, special operation operation certificates, vocational skills appraisal and other types of work question bank exercises.
