"Oh, there is no good answer as imagined......" It was Hao Shuai next to him, who thought for a long time before he began to write.

Zhang Yifu shook his head, brushed aside the interference of the outside world, and looked at the front in a daze and conceived, although he was clear, but to simplify the language and description, only the key points, after all, it was the leader in charge of human resources who read the papers, and he might not understand it if he wrote too professionally. Some of the people present have even begun to draw pictures and write formulas, showing that they have memorized a lot of books, which is obviously unscientific.

On the podium, the old professor smiled slightly, and said to Liu Jianwang next to him: "I have raised my pen, Director Liu, is this question too simple?"

"Hehe, I didn't study this major, and I can't ask too difficult questions. Liu Jianwang glanced around, and happened to see Zhang Yifu, who was glazed over, and whispered softly, "Professor Chen, isn't there a person over there who hasn't written down." ”

The old professor followed the direction and saw that it was Zhang Yifu, so he had to sigh: "You said Zhang Yifu, his score was not low when he entered the school, but he was slack after that, but he was always able to pass the exam, he was more than smart, and his efforts were insufficient. ”

"It's a pity...... it's really a pity" Liu Jianwang looked at Zhang Yifu, who had an outstanding image, and also sighed, only smart, and unwilling to work hard, people with no ambitions, he has seen too much, even in ministries and commissions, there are people who live such a mess, this kind of person can never give him a comfortable environment, he must be forced to work hard.

Zhang Yifu didn't know that the simple conversation between the two bigwigs on the stage had basically announced his death sentence, and the only thing that could solve the dilemma was probably the piece of paper in his hand.

After pondering for half a minute, Zhang Yifu finally put pen to paper, using the simplest words he could extract to describe the working principle of the thermal power plant.

[Thermal power plants are powered by the joint action of boilers, steam turbines and motors. 】

[1: Coal is fed into the boiler to burn the conveyor track, and the high-temperature and high-pressure water vapor is produced to drive the steam turbine to rotate. 】

[2: The steam turbine drives the motor to rotate, and the motor generates electricity according to the basic principle of cutting magnetic inductance lines. 】

[3: The three-phase alternating current generated by the motor is led out and sent to the power grid to complete the electrical process. 】

[4: After the used steam is purified and liquefied by chemical means such as condensation and oxygen removal, it is re-incorporated into the boiler, heated to a vapor state again, and circulated to do work. 】

[Supplement: According to different electric energy, thermal power plants are also divided into oil-fired power plants, natural gas power plants, etc., the principle remains the same, but according to different raw materials, the boiler structure is different. 】

After answering this question, it took less than three minutes, Zhang Yifu looked around with his spare eyes, most people were still struggling to write, and they didn't know whether it was a pendulum heat formula or a motor circuit diagram.

After a long time, he only heard a cough, and when he looked sideways, it turned out that Xia Xue had already finished answering, and deliberately pushed the paper to this side, pushing it into Zhang Yifu's field of vision.

It's still a matter of gratitude?

Zhang Yifu only swished his throat and shook his head slightly, indicating that he didn't need it at all.

"It seems to be self-defeating. Xia Xue let out a low groan, withdrew the scroll, thought for a moment, and began to make some necessary additions.

On the stage, Liu Jianwang looked down at his watch, listening to the sound of some people tearing the second piece of paper, and shook his head helplessly, no one asked them to draw a circuit diagram, even if they drew Liu Jianwang, they couldn't understand it.

He couldn't help but look at Zhang Yifu, who had just paid special attention to him, this kid was just the opposite, the latest to write, the first to stop writing, and I don't know if there was no water in his stomach or he had thoroughly understood the purpose of the assessment, and he had to take a good look at his paper for a while.

For five minutes, Liu Jianwang no longer cared about the students who were working hard to write, and said loudly: "Okay, it doesn't matter if you don't finish writing, this is not an exam, just a little bit to understand everyone." ”

After that, he directly asked the next question: "Please listen to the second question - if a city is facing a shortage of electricity, please propose a solution, and briefly explain the reasons and advantages and disadvantages." ”

Everyone's thinking has not yet jumped out of the box of electricity basics, and the second question has already come head-on. Unlike the first question, the second question doesn't seem to be in the textbook at all, and it is not so much a professional question as a general knowledge question and a management question. You may be able to answer this question without attending class for a day, but on the contrary, you may be able to answer very average if you study hard every day.

Some people pick up the pen quickly, while others get lost.

On the surface, Zhang Yifu seems to be one of the confused people, but he is actually thinking about something more. People in this era are more honest, and after others have solved the problem, they will only try their best to think about the steps to solve the problem. And Zhang Yifu knows that Liu Jianwang is engaged in manpower, unlike a person who is dead in technology, and to solve his problem, he should think from the point of the questioner's assessment, rather than technical details.

The first question, Liu Jianwang's purpose is to see if you understand the basics, whether your brain understands, that's all.

The second question is to see if your common sense can be passed, and whether the practical application knowledge that is not explained in the book can be easily solved. It seems simple, but in fact, there is a hidden problem hidden here. Liu Jianwang said clearly, and mentioned at the end, "Please briefly explain the reasons and pros and cons." "The advantages and disadvantages are compared, that is, there is absolutely more than one way to solve the problem of lack of electricity, and it is necessary to compare several ways with each other and make a judgment.

At this level, it is actually a professional question, and it is a professional question in actual work, a professional question in the management direction and the overall situation, even if it is a student majoring in electric power, it is very difficult to answer it perfectly; on the contrary, an old electrician who graduated from primary school may be able to answer it easily.

Zhang Yifu suddenly felt very embarrassed, he has been working in the power plant for so many years, and coming back to answer this kind of question with the stunned students, is it considered cheating?

[There are three conventional solutions]

[First, increase power supply capacity and build new power plants to make up for the electricity shortage.] The advantage is that once and for all, it directly increases the power supply, and the excess power can also be integrated into the power grid to solve the urgent needs of other cities; the disadvantage is that the construction period of the power plant is too long, and the immediate problems cannot be solved immediately, which will delay the production and life of the city lacking electricity. 】

[Second, regional power transmission. The advantage is that the effect is fast, and the power can be obtained from the surrounding power plants immediately after the high-voltage transmission line is erected, but the disadvantage is that the power supply of the whole country is in a tight state, and it may be difficult to favor one over the other. 】

[Third, orderly electricity consumption, through guò staggered peak power consumption, power rationing to balance the power supply, especially to stabilize peak hour electricity consumption; the advantage is that there is no need for external forces, the city can be solved immediately; the disadvantage is that the symptoms are not cured, which is not conducive to economic development, and at the same time, it affects the order of production and life to a large extent. 】

[To sum up, there is always something wrong with a single solution, and the three ways can be used together, one side to build a power plant, the other side to increase power transmission, and at the same time limit a part of the electricity consumption, until the completion of a new power plant, you can smoothly solve the problem of power shortage. 】

After Zhang Yifu finished answering the question, there was still a long time before the prescribed time, and he had already begun to narcissist, he was afraid that he would use too many professional words with too much essence, and the force was too high, so that the leader could not understand it.

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