国网电力职称英语阅读判断(已排版).doc

Passage 1 Feature of power generation 1. They electric power can stored. (wrong)2. The power system is made up of 4 parts. (right)3. The unification of power system equipment is formed by 4 equipments. (right)4. A power system is an undivided integer. (right)5. The power network can operate normally without the integration of other 3 equipments. (wrong)6. A link line is called a transmission line. (right)7. A link line is formed by 3 power networks. (wrong) 8. An electric power network is simply called a power network.(right)9. The main network frame is formed by a weak EHV system. (wrong)10. The networks are not closely linked with each other.(wrong)Passage 2 Types of circuit breaker 1. Contactors, are-extinguishing elements, insulation material and operating mechanism form the high voltage circuit breaker.(right)2. The insulation structure is made up of 3 parts.(right)3. The are-extinguishing medium can be divided into only 3 parts.(wrong)4. An oil circuit breaker means a circuit breaker with oil as are-extinguishing and insulation medium.(right)5. A vacuum circuit breaker is not a circuit breaker with close and open contactors in high vacuum.(wrong)6. A pure SF6 gas is not a food are-extinguishing medium.(wrong)7. The insulation strength of SF6 gas is higher than air and vacuum.(right)8. An oil minimum circuit breaker is very safe in use.(right)9. An oil minimum circuit breaker has bad heat dissipation capability.(wrong)10. An oil minimum circuit breaker is one of the mostly used circuit breakers in the power grid.(right)Passage 3 Optical fiber communication1. A kind of information communication is optical fiber communication.(right)2. The composite optical fiber ground wire is seldom used in power system.(wrong)3. One of the transmission tasks of the optical fiber main network is to transmit administration telephones from power system.(right)4. Optical fiber communication has been the important communication method in power communication system.(right)5. Large capacity of communication is not one of the advantages of optical fiber communication.(wrong)6. The communication capacity of optical fiber is indirectly proportion to the carrier frequency.(wrong)7. The carrier frequency of power line is more than 300kHz.(right)8. The carrier frequency of microwave is between 3000Mha and 500MHz.(wrong)9. The main problem of the fiber-optic channel is the high price of fiber-optic equipment(right)10. The cables made by optical fiber are not expensive.(wrong)Passage 4 Power plant1. Base on energy conversion, power plants are divided into more than 7 categories.(right )2. A power plant tries to transform energy source into electric power. (wrong )3. The power plant generating electricity and supplying steam is called a co-generation plant. (right )4. A power net plan for short and medium term is one of factors in selecting a site (wrong)5. Two important factors for a new plant plan are fuel supply and ash disposal.(right)6. Environmental protection is less considered in building a new power plant(wrong)7. Water sources and transportation conditions are not needed to consider in selecting a new site(wrong)8. The total capacity in a newly scheduled plant arranges from 1200MW to 3600MW(right)9. The number of units exceeds more than six.(wrong)10. The ranks of capacity should be limited within two.(right)Passage 5Selection of metal material for the boiler in units of 1000MW grade1. The 1000MW grade high-efficiency supercritical unit is designed and made in China.(right)2. The temperature of main steam and reheated steam reach basically between 570 to 650.(wrong)3. The tube wall temperature of superheater and reheater can reach more than 600 to 650 (right)4. The tube wall temperature steam oxidation performance at tube inner surface is highly demanded.(right)5. The anti-high temperature flue gas corrosion performance at tube outside surface is not highly demanded.(wrong)6. The temperature limit of T91 for use is about 593（ring）7. The temperature limit of T92 for use is less than 620（wrong）8. The temperature of austenite stainless steel for normal use is about 650（right）9. The temperature limit of austenite stainless steel is less than 700（wrong）10. Only heat-resisting steel can be adopted for use.(wrong)Passage 6 The role of the condenser 1. A condenser is a heat exchanger removing the vaporization heat from the exhaust steam and condensing the exhaust steam into water.(right)2. It is suggested that the water should not be cooled below the saturation temperature.(wrong)3. The saturation temperature would not remove excess energy from the system and reduce the overall efficiency.(right)4. It is unnecessary to reduce the steam to water so that it can be pumped back through the system.(right)5. The condenser does not control back-pressure at the turbine exhaust.(wrong)6. The important factor controlling the turbine backpressure is the temperature of the cooling water passing through the condenser tubes.(right)7. The temperature of cooling water will increase its temperature between 15oF and 20oF as it passes through the condenser.(right)8. The terminal difference means the temperature difference between the cooling water and the turbine exhaust steam.(right)9. The temperature increase of the cooling water and the terminal difference depend on 3 factors.(wrong)10. The exhaust steam temperature does not rely on the temperature of the cooling water which enters the condenser.(wrong)Passage 7 Hydraulic structure 1. The type of dam for hydraulic power plant depends on many factors.(right)2. The main purpose of the dam safety monitoring is to discover the normality of dam in time.(right)3. The equipment installed inside the dam is to discover the normality of dam in time.(wrong)4. Horizontal displacement is more important than vertical displacement.(wrong)5. Temperature stress and strain are the two main monitoring items of dam.(wrong)6. The monitoring method is the suitable points on the dam and its foundation.(right)7. Some monitoring devices are movable for periodical supervision.(wrong)8. The monitoring result result shall be analyzed and studied by computers.(wrong)Passage 8 Heat treatment1. The post-weld heat treatments have two main purposes.(right)2. One of the purposes is to diminish the residual stress in the welded joints.(right)3. The other purpose is to improve the organization of the welded joints.(wrong)4. The welding crack can be classified into 5 categories.(right)5. To change the internal structure of the work piece is one of purposes for heat treatment.(right)6. There are 5 kinds of steel heat treatment.(wrong)7. The processes of heat treatment include 4 procedures.(right)8. The electric resistance furnace is not widely used.(wrong)9. Heat treatment furnaces are not composed of electric resistance furnace, combustion furnace and surface heating device.(wrong)10. The control device for heat treatment temperature is composed of temperature measuring element, and control device.(wrong)Passage 9 Business and risks1. The work Capitalism is written by Carl Marx.(right)2. For 20% profit, capital will take risks.(wrong)3. For 100%, capital dares to break any human laws.(right)4. For 200%, capital dares to commit any crime and even risks being hanged. (wrong)5. The pursuit of profits forces human beings to take any risks.(right)6. The pursuit of profit is much more encouraged than the pursuit of friendship.(wrong)7. There are two ownerships existing in Chinese economy.(right)8. Only bright manufacturer or manager can predict the future of his enterprises.(wrong)Passage10 Electricity1. Electricity is not dangerous as people think.(wrong)2. Dry wood can carry electricity to the ground. u(wrong)3. Conductors like metal or water can carry electricity to the ground.(right)4. Human body is a good conductor because it has 90% water in the body.(wrong)5. You can use a hairdryer far from bath and water.(right)6. Wet hands are good conductors for transmitting electricity.(tight)7. The best tool to push a shocked person away from the power is to use a non-conductor.(right)Passage 11 Undersea Life 1. Everything under the sea becomes blue and green. (right)2. Now people can dive into the water to explore the secrets of the sea.(right)3. You can stay in deep blue sea for a long time if you have bottles of air on your back. (right)4. It is warm but dark in deeper water. (wrong)5. Under about 3000 feet, there is no light at all. (right)6. Many fish under deep water have eyes like normal fish in water. (wrong )7. The sea is a dangerous place for all organisms.(right)8. Deep sea animals must follow the rule: to eat or be eaten.(right)Passage 12 Advice on Friendship1. People cant live well if they have no friends. (right)2. If you want to keep a friend forever, you should greet him with a smile.(right)3. Cooking some soup for a sick neighbour makes youre the sick neighbour feel much better.(right)4. If you have a close friend, It doesnt matter to be rude to him.(wrong )5. If you want to be a loyal friend, you should understand their ideas and learn from them. (right)Passage 13 Australia1. Australia is a large country and has a relatively large population. (Wrong)2. The majority of people living in Australia are city dwellers. (right)3. The delivery of education services to people living in remote areas is unimaginable for (wrong )4. The attempt to provide educational services to distant dwellers did not take place until 1916. (right)5. The schoolwork was delivered and retumed through sealed roads, regular bus routes and air services in the beginning. (wrong )Passage 14 Biomass1. As a source of energy, biomass can bring the best possible profits for the lowest possible costs. (right)2. One of the advantages of using biomass is that it is a convenient medium to store energy. (right)3. Biomass doesnt produce enough carbon dioxide and is harm less to the environment. (wrong )4. Despite its advantages, biomass is not suitable for commercial uses. (right)5. Only trees and crops can be used as biomass-fuels. (wrong )Passage 15 Nuclear radiation1. The mystery about nuclear radiation may come from the fact that it cannot be detected (right)2. We cannot sense radio activity without a radio receiver. (wrong )3. Common radio waves are harmless to human beings and other things. (right)4. Even at the lowest levels, radiation will cause cancer by killing the healthy cells. (wrong )5. Victims of nuclear radiation may die of cancer years later. (right)Passage 16 Livestocks Long Shadow1. With the increase of human population over the last century, every thing around us is increasing. (wrong )2. It was not until the publication of a new report, called “Livestocks Long Shadow that we know how big the number of livestock is. (wrong )3. Rain forests are dec