The magistrate issues a welder qualification test

First, resolve the question
1, according to national standards combination conviction. (√)
2, according to citizen standards and provisions on benefit of products that use the characters. (√)
3, bonus quality carbon structural steel after the and sign in Grade (√)
4, when the stainless steel is greater than 0.01% carbon, less than or equal 0.03%,GHD Straighteners, for the ultra-low carbon stainless steel. (√)
5, vanadium steel, titanium, aluminum, boron and additional elements are micro-alloys, the content is very cheap, do not bid in the steel out. (×)
6, 20Mn steel, that the mean manganese content is 0.20%. (×)
7, the tensile strength carbon steel for strength according to category. (×)
8, the mechanical properties of metal materials is reflected by the external force performance, mechanical properties of the selection, use and evaluation of an important basis for metallic materials. (√)
9, the engineering strength of materials used to represent the arrows of metal yield strength and mow strength. (×)
10, the tensile strength of metal materials to withstand the maximum stress before fracture, it is also called ultimate strength. Used to represent Rm. (√)
11, plastic is the metal under outer compel without permanent distortion reasoned by mar to the performance. Stay in coerce after the vanish of this part of the unrecoverable deformation, called plastic deformation. (√)
12, the Brinell hardness of metalline materials using HR said. (×)
13, in general, the more nice grain, the higher strength and hardness, ductility and toughness in the meantime the better. (√)
14, after quenching, tempering said quenched. (√)
15, Daya Bay and Ling Ao nuclear power plant reactor pressure vessel pressurized water reactor section and the upper and lower cylinder head is used in grades 16MND5 steel. (×)
16, in the ASME standard, 316LN in the (×)
17, carbon steel welding performance depends mainly on the carbon content, the carbon content increases, the welding performance becomes aggravate. (√)
18, elimination of hydrogen treatment can quicken the spread of the hydrogen escape and prevent solidification cracking. (×)
19, low-alloy steel, carbon steel base in a certain amount of alloying elements on the alloy. The total content of alloying elements, not more than 5%, to mushroom the strength of steel and is vouched a certain adaptability and toughness. (√)
20, nuclear safety equipment in a safe side, the pressure casting materials are used martensitic stainless steel. (×)
21, austenitic iron of the carbon content of 0.02 to 0.03% of the aggregate carbon dissolved in austenite, even heated 450 ~ 850 ℃ and will no form a chromium depleted zone, it does no produce intergranular corrosion. (√)
22, nickel-based alloy weld chilly cracking of tall sensitivity, simple to produce cracks in the cavity. (×)
23, E5515 electrode in the (×)
24, culling of low-alloy steel electrodes, first of all to obey by the principles of equal strength to meet the strength of the weld and base metal and other requirements. (√)
25, electrode coating agency in a settled arc performance to improve arc starting, arc can improve combustion permanence. (√)
26, the chemical composition of stainless steel weld type should be same as the base criteria to elect welding material. (√)
27, alkaline electrode process representation is meager, fuel, rust and water is very sensitive, important buildings can not be used for welding. (×)
28, low sodium and low hydrogen potassium type coating deposited metal electrode has good crack resistance and mechanical properties. (√)
29, the flux feature is mainly artistic in order to get a smooth weld surface fashion. (×)
30, commonly used in grades H08Mn2SiA wire (√)
31, really refers to the welding electrode diameter coating increases the diameter of the core. (×)
32, dipped arc welding flux according to manufacturing usages tin be divided into 2 categories: non-melting flux and flux thawing. (√)
33, argon arc cooling effect on the small, so the burning arc in argon, the heat wastage of large, relatively poor stability. (×)
34, dry electrodes and the flux is to reduce the weld metal hydrogen content of the important amounts. (√)
35, commonly used in the grades for the H08Mn2SiA wire (×)
36, using alternating new, the Ministry should be floor into a hemispherical tungsten utmost; using DC, the Department of tungsten extreme cone or truncated cone was easy arc ignition high and stable arc. (√)
37, the capacity of alkaline stomatal resistance welding electrodes stronger than the mordant. (×)
38, GTAW, in mandate to dilute the damage to person body, should attempt to use non-radioactive thorium in place of tungsten rod tungsten rod radioactive cerium. (×) ; ; ;
39, acidic and elementary welding electrodes slag in consensus with the pH electrode to discriminate the feud. (√)
40, Qinshan Phase III CANDU CANDU6-type units, with no enrichment of nuclear fuel is normal uranium with heavy water as the reactor moderator, pressurized heavy water as coolant, which manner that heavy water heavy mediocre water. (×)
41, pressurized water reactor nuclear power plant system, used not merely to adjust the main pressure vessel and a fixed core and reactor components, but likewise as one major coolant pressure border, plays to prevent the flee of fission productions role. (√)
42, pressurized water reactor nuclear power plant steam generator function is mainly used as heat exchange equipment, will be a circulate of the coolant heat to feed water to make steam, there is no choice other efficacy. (×)
43, the nuclear power plant garbage treatment system is designed to protect the environment. (√)
44, our own design and construction of the 1st nuclear power plant in Daya Bay Nuclear Power Station (×)
45, pressurized water reactor nuclear power plant radioactive waste emissions, radioactive waste and radioactive solid waste. (√)
46, nuclear power is the use of nuclear energy release of atomic combination reactions to generate electricity. (×)
47, our country is currently escaping mercantile heavy water reactor nuclear power plant is the third period of the two CANDU6 Qinshan units. (√)
48, the quality of a re-fission into two around equal to the initial half of the fission shreds of nuclear reaction called nuclear fission. (√)
49, according to reactor type nuclear reactor coolant and referee can be divided into light-water reactors, ponderous water reactor, HTR. (×)
50, nuclear power reactors using low concentrations of fissile material as fuel, and radiated in the reactor, in whichever case not a nuclear explosion. (√)
51, is a positively charged atomic nucleus and the kernel circled by negatively charged rotating electronic makeup. (√)
52, pressurized water reactor nuclear power plant system because inclusion in the oppression container and the reactor gist and nailed components. (√)
53, American Society of Mechanical Engineers to amplify the RCC-M nuclear codes and standards are warmhearted used in nuclear power in the world based on norms and standards, the globe most of the relevant standards in its nuclear power development on the foundation and built. (×)
54, nuclear power plants and nuclear oil used in the purity of raw materials used are basically the same,GHD IV Styling Set, so be sure to do security go. (×)
55, in order to prevent leakage of radioactive nuclear power plant, usually used specifically three barriers: the fuel cladding, pressure vessel and containment; pressurized water reactor nuclear power plant will be converted into electrical energy mainly in the reactor, steam generator, steam turbine,GHD IV Mini Straighteners, generator implemented in the four devices. (√)
56, human are attacked uranium nuclei into neutrons, and mainly control the release of energy apparatus called the reactors. Reactors to generate electricity using nuclear power plant is called. (√)
57, nuclear power plants are carbon dioxide, sulfur dioxide,GHD Green Straighteners, carbon monoxide emissions of noxious gases and pollution to the environment a lot. (×)
58, the importance of nuclear safety equipment safety is the biggest 3. (×)
59, nuclear power namely the use of nuclear vigor unlocked along nuclear fission to generate electricity. (√)
60, nuclear safety is the completion of the correct operating conditions, accident prevention alternatively mitigate the consequences of accidents in order to fulfill protection of plant workers, the public and the environment from extravagant radiation. (√)
61, civilian nuclear safety equipment is accustom in the civilian nuclear facilities the implementation of nuclear safety traits of equipment, machinery and equipment, including nuclear safety and nuclear safety of electrical equipment. (√)
62, civilian nuclear safety equipment is the key to the implementation of nuclear security equipment, physical security of civil nuclear facilities, the core barrier , the quality and stability is instantly narrated to safe and stable operation of nuclear facilities. (√)
63, in common, nuclear power plant mechanism and equipment into a nuclear safety, nuclear safety class 2, nuclear safety 3 and non-nuclear safety class. These devices are collectively referred to as nuclear safety equipment. (×)
64, operating element of civilian nuclear facilities for civilian nuclear safety equipment was partial responsible for safe operation. (×)
65, boron-containing water to prevent high temperature corrosion of substances, pressure vessels, pressure vessels, always of the internal surface in adjoin with the coolant parts are not fewer than 5 mm thick surfacing of stainless steel corrosion resistant surfacing floor. (√)
66, vertical steam generator lower head wall and the coolant contact surface of welding 5 ~ 6 mm thick stainless steel cover to reduce erosion, so that the coolant to retain good water quality and low radiation levels. (√)
67, the electric heating makeup regulator welding is a key regulator manufacturing process, with certain technical difficulties , to be taken seriously. (√)
68, each loop in the reactor pressure vessel head and steam generators of pipe is called a cold (cold thigh), steam generator and the main pump is called a transition among the head section of the main between the pump and reactor vessel head is called a heat pipe (peppery thigh). (×)
69, nuclear factory owners are thick-walled colossal diameter pipe stainless steel, highly strict requirements of the welding process, welding memories by the micro-welding defect is acceptable. (×)
70, (√)
71, the core of nuclear safety mores is to ensure nuclear safety programs for machinery and stringent enough. (×)
72, the basic requirements of quality insurance of nuclear power plants is: anything rules to follow, was responsible for everything, always well documented, everything without supervision. (√)
73, welding parameters on welding quality assurance is very important. (√)
74, weld mend is not required when passing the examination as a welder. (×)
75, welding equipment, technical instruments should be regularly performance test. (√) ;
76, civilian nuclear safety equipment to be busy in the manufacture and installation activities, welders, with a conventional pressure vessel certificate of qualification to carry out nuclear activities of welding products. (×)
77, civilian nuclear safety equipment to obtain a eligible welder welders welding has a certain level, so the welding process without beyond supervision. (×)
78, to obtain civil nuclear safety equipment welder welder qualification shall not engage in outdoor the range of its qualification certificate for welding activities. (√)
79, civilian nuclear safety equipment welder welding operator qualification certificate is valid from the appointment of the visa duration of two years. (×)
80, welding safety equipment in civilian nuclear activities have to in accordance with the (×)
81,GHD Hair, the main seam welding is portrayed by thick cylindrical shell wall thickness, multi-layer welding, for the collection of interior stress, residual stress in the weld place is larger, easy cold weld cracks and other defects. (√) ;
82, the main sew submerged arc welding generally use a taper gap, meantime the roots by hand welding backing. (×)
83, in order to assure weld quality, the best of every main seam welding process can be completed once, prefer than half-way stop. (√)
84, the regulator Flashlight wall stainless steel welding, general welding three, that is, conversion layer, medium layer and the surface layer. (√)
85, transition layer of stainless steel welding generally tend to use ER308L, while the surface layer using ER309L. (×)
86, cylinder pate section and the welding of stainless steel welding is perennial, the need for cylinder pate section and an overall lukewarm. (√)
87, saddle over automatic submerged arc welding machine is suitable for φ100 ~ 1000mm broad receiver, and receiver and cylinder diameter ratio is less than or equal to 1 / 3. (×) ; ;
88, saddle over the process of automatic submerged arc welding can be clockwise and counterclockwise alternately welding,GHD Blue Butterfly 2011, this will ensure that the weld thickness, until the external weld properly. (√) ;
89, when the takeover and the cylinder diameter ratio greater than 1 / 3, such as the use of saddle over submerged arc welding machine welding, to be first with the lower electrode at the welding arc, the entire saddle the highest point of the groove and the lowest point can be smoothed down welding. (√)
100, pipe linkage and the security side welding, pipe joints need to be surfacing, surfacing after the fittings may be accentuate relief heat management, and stainless steel fittings to be welded together in a safe-side stress relief heat management. (×)