Chapter 66 [Second Level]

Star City, Shonan University.

The re-examination is generally divided into a written test and an interview. The written test will be conducted first, followed by an interview. At the same time, there will be a self-introduction in the oral part of the interview.

In terms of English, it is not a problem for Lin Shu to score 92 points in the postgraduate entrance examination. The written test in the morning is also very simple for Lin Shu.

It is not until the official interview is that the key drama begins.

There were five teachers sitting in the classroom. I have to say that Lin Shu, a social person who was the first in the first test, left a deep impression on the several teachers present. Firstly, it was because Lin Shu’s undergraduate degree was Shonan University. It was because Lin Shu was a graduate student who re-examined three years after graduation, and his scores were quite high.

More importantly, there was a teacher who was interviewing at the scene who had given Lin Shu a class on the principles of mechanics.

However, when he was an undergraduate, Lin Shu's performance was not particularly impressive. A truly outstanding student had already taken a place in the graduate school. As for Lin Shu, this student can only be said to be above average during his undergraduate studies.

The moment Lin Shu entered the interview room, he recognized Jiang Yu, the teacher who taught him Mechanics of Materials.

Although Jiang Yu didn't have a deep impression of Lin Shu, he roughly remembered that he had taught this student, so the atmosphere at the interview site was quite good.

At the very beginning, Jiang Yu asked, "Lin Shu, you were the one who caught the thief on the bus before, and asked if you were from Xiamen University, but from Hunan University?"

Lin Shu was a little surprised. He didn't expect Jiang Yu to know about it.

After all, this happened last year, and it has been a long time. I didn't expect anyone to remember it.

Lin Shu nodded.

Jiang Yu nodded, nodded with satisfaction and said with a smile: "Very good."

"Why would you want to take the postgraduate entrance examination after work?"

"The real reason is that there is no advantage for a bachelor's degree now, so I want to study further and improve myself."

Jiang Yu said with a smile: "Why don't you just apply for a master's degree?"

Hearing this question, Lin Shu couldn't help shaking his head, and said honestly: "After all, I've been working for three years, and I felt that the postgraduate entrance examination might still be difficult, so I didn't dare to apply for a master's degree, thinking that a master's degree might be easier. "

"You are the first in the first test!"

Another male teacher next to him, Zhou Yang, smiled and said, "Your score is very high."

This is not what Zhou Yang said on purpose, but it is obvious. The professional score is 140, and the scores of other subjects are also quite high. The people present have taught many graduate students, so they naturally know what Lin Shu's score means.

After a brief introduction, there will be a question and answer session.

"I won't ask particularly difficult questions, just talk about what the six-point positioning principle is."

This question is a bit biased, but not too difficult.

Lin Shu directly replied: "Using six constraint points arranged according to certain rules to limit the six degrees of freedom of the workpiece, that is, the complete positioning is called the six-point positioning principle."

"Then what is over-positioning and under-positioning? Are both allowed? Why?"

This problem is a little deeper.

Lin Shu thought for a while and replied: "Under-positioning refers to the positioning where the degree of freedom that should be restricted according to the processing requirements is not restricted. Under-positioning is not allowed. Because under-positioning cannot guarantee the processing requirements. Over-positioning is the positioning of one or more parts of the workpiece. Positioning where several degrees of freedom are repeatedly restricted by different positioning components. When over-positioning causes deformation of the workpiece or positioning components and affects machining accuracy, it should be strictly prohibited. But when over-positioning does not affect machining accuracy, it is beneficial to improve machining accuracy , can also be used.”

...

The other teachers here saw that Lin Shushi gave the answer very directly and quite accurately, unlike some students in front who stumbled and went around, and did not answer correctly, they all started to ask Lin Shu.

"Tell me about the processing method of the gear."

This is simple. Anyway, Lin Shu has worked for three years, even if he didn't review, he still knows.

Lin Shu quickly replied: "There are two kinds of forming method and generating method. The forming method mainly involves gear milling and pulling, while the generating method mainly includes gear hobbing and shaping. The main difference between the two methods is that the generating method has higher machining accuracy. High, up to level 3. But the production efficiency is relatively low, and the development method requires gear grinding equipment, and the production cost is relatively high.”

Hearing Lin Shu's answer later, the teacher who asked the question couldn't help laughing. Obviously, Lin Shu still has a deep impression of production cost and production efficiency, and this is all because of his work experience.

...

The other tutors couldn't help but started to ask Lin Shu, wanting to see if they could ask Lin Shu.

"What are closed loops, increasing loops, and decreasing loops?"

Lin Shu directly replied: "In the dimensional chain, the last link formed in the process of processing or assembly is called a closed loop. If the change of this link causes the same direction change of the closed loop, then the link is an increasing loop. If the link If the change causes the reverse change of the closed loop, then the loop is a reduced loop.”

...

"What's the difference between electric welding and gas welding?"

"Arc welding mainly uses the high-heat melting metal of the arc generated between the conductors to weld, and can weld metal materials above 3mm. Gas welding uses the high heat generated by gas combustion to melt scriptures to achieve the purpose of welding. Both are used, mainly for welding thin materials and cutting metal materials."

...

"What are the characteristics of an involute tooth profile?"

...

Lin Shu feels that he is now facing a few elders who guard the gate, and he has to ask the elders one after another, from mechanical processing, material mechanics, to various unpopular knowledge points. Everyone seemed to want to block Lin Shu at the second gate, and prevent Lin Shu from easily entering.

Fortunately, Lin Shu's cultivation skills are very profound, and he still has certain attainments in the field of mechanical engineering, at least for the time being, he is still able to cope with it freely.

Of course, these are the elders who guarded the gate, but they still didn't kill Lin Shu directly. They didn't leave Lin Shu with a way out until the point of view, and they pressed on every step of the way. Most of the questions they asked were within Lin Shu's ability. , and did not ask from mechanics of materials to aerospace.

Jiang Yu was quite satisfied with Lin Shu's interview. I have to say that Lin Shu not only has a solid professional foundation, but also has a lot of experience in actual machining. This is undoubtedly the advantage of Lin Shu's three years of work.

Naturally, the elders who guarded the pass were not just to deal with Lin Shu alone. They had limited time to break through most of the problems, and Lin Shu had ended the challenge of this pass.

As for the result, whether it can pass the customs will not be announced until later.

However, Lin Shu is still very confident that he can get through this level, and he doesn't feel that he is blocked by the elders who guard the level.

At the end of the questioning challenge, Lin Shu was not surprised to see his bones, and was immediately accepted as a closed disciple on the spot, and Lin Shu left in a huff.

Not a single cloud is taken away.

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