Chapter Seventy-Nine: Textbook Answers

Niu Shilong suddenly felt nauseous like eating.

Although he really didn't know how many doorways there were, he knew that he had read it wrong, and it was definitely a big joke, because the expressions of everyone below told him.

However, can he blame Qin Zhenhua?

It seems that Qin Zhenhua is not wrong, what is wrong is this person who writes, if he writes the Chinese characters correctly, can he read them wrong?

This is really sloppy, that Du Youwen, did he do this on purpose to make himself ugly?

Fortunately, Niu Shilong has seen the world, although he was embarrassed, he quickly covered it up, pretended to take a sip of water, and then, stabilized his mind, and said: "That's right, it's oxygen acetylene, now, can you start answering?" ”

I don't believe you can say it, the following answers, written one by one, that is called a cumbersome, ordinary master, who will answer?

This answer must have been copied from a textbook, right?

"Okay, then I'll start answering." Qin Zhenhua is full of confidence, pronouncing words clearly, and the pronunciation of the announcer of the standard word box is average: "First of all, it is preparation, which is divided into eight steps: check the use of the equipment and whether the surrounding environment is safe; removal of dirt, etc.; Stake out according to the drawing; Raise and stabilize the cut piece; Check the injection and suction performance of the cutting torch; Check whether the wind line is good; Adjust the energy rate and properties of the preheating flame; After the above preparations are completed, the trial cutting will be carried out. ”

When Qin Zhenhua said this, everyone was stunned.

If you want to say that you want to cut with gas, the masters will, and when you do the preparations, you are also very skilled, but if you standardize this preparation and say it one by one, then no one can do it, and now saying it is like summarizing it for them, clear and organized!

Niu Shilong's eyes widened too, wouldn't he? It is absolutely impossible to leak this exam question, how did Qin Zhenhua know? It's completely correct, word for word!

"I then answered the specific use method, which is divided into four steps: ignition, cutting, normal gas cutting, and stopping cutting."

This is much more detailed than the previous one, when Qin Zhenhua said it, the masters at the scene, their jaws were about to fall, if I was asked, could I say it?

Of course it's impossible, what else is there to say about the operation, and it will naturally be done with more practice!

As for Qin Zhenhua, it is still a standard textbook answer: "Before ignition, turn on the acetylene first, then slightly open the oxygen valve, and light it with an ignition gun or match." Under normal circumstances, a special lighter should be used for ignition. In the absence of a musket, a match can also be used to ignite the fire, but attention must be paid to the safety of the operator and not to be burned by the ejected flame. At the beginning of the carbonization flame, the oxygen flow should be gradually increased, and the flame should be adjusted to a neutral flame or a slightly oxidizing flame. ”

………

"Stop cutting: At the end of the cut, the torch should be tilted at an angle in the opposite direction of the gas cutting, so that the lower part of the steel plate can be cut through in advance, so that the cut looks neat at the end. Finally, the oxygen valve and acetylene valve are closed, and the whole gas cutting process is completed. ”

In the factory, no one has ever been able to answer so clearly, understand, word for word, for the average master, it is all words and deeds, who will read a book?

Qin Zhenhua's figure, in front of their eyes, immediately became taller, this level is enough to teach them a lesson, that's right, a few Soviet instructors came to teach them, and when they gave them lessons, they should have been said one by one, and the translator was tired at that time.

"By the way, it should be added that when the thickness of the steel plate is more than 25mm, a large torch and cutting nozzle should be used, and the preheating flame and cutting oxygen flow should be increased. In the process of gas cutting, the cutting speed should be slow, and the transverse crescent shape oscillation should be done appropriately to widen the incision and allow for slag discharge. ”

After Qin Zhenhua finished speaking, he also felt thirsty, picked up the enamel cup on the table, took a sip of water, moistened his throat, and said to Niu Shilong, who was stunned above: "Director Niu, am I answering correctly?" ”

This kid, if he hasn't read the exam questions, then he really has knowledge in his stomach, he actually knows all about this thing?

"Well, well, no problem." Niu Shilong can't say that others are wrong, after all, this is the standard answer.

"Whoa." In an instant, someone below applauded and shouted, "Okay, awesome!" ”

This voice was a girl's voice, but it was hidden in the corner and no one could be seen, but under the impetus of this applause, everyone else also applauded.

Admire, this is a learned person, in the factory, it is estimated that no master can do it!

Niu Shilong's heart was annoyed, he originally planned to use this method to embarrass Qin Zhenhua today, but who would have thought that it would make him show off instead?

How could he recite it so clearly?

I'm going to Tsinghua University, if my brain is not good, can I have this ideal? Qin Zhenhua is there, with a special sense of arrogance, although he can't read the book and never forget it, but as long as he reads it, he can naturally memorize these operating rules and regulations clearly, and he can't help but use this to test himself.

Niu Shilong felt that he couldn't go on, and he didn't pass the other party, but he made a fool of himself, so, do you want to do it next? Or do you give the test questions to Song Weize and let Song Weize take the test?

What if I get this second question wrong again?

With such thoughts, Niu Shilong opened the next question, and suddenly, there was a light in front of him, and the second question, I don't believe you can answer it.

Because, Niu Shilong can't understand it, the answer to this second question is a formula!

For the master, he usually relies on experience to do it, and it is impossible to say that he can calculate the formula. They don't have that level, especially now, in this formula, it is obvious that there are some symbols, even I don't know them, not addition, subtraction, multiplication and division, and even, there is a curve chart, really professional! Tsk, only the boys in the R&D room can come up with such a question!

Niu Shilong read it carefully twice, convinced that he would not misread the words of the above exam questions, and then make jokes, so he started again with confidence.

"Qin Zhenhua answered the first question very well, now, it's time for us to take the second question." Niu Shilong said with great interest: "A three-phase asynchronous motor, model Y-90L-4, power 1.5 kilowatts, speed 1400, power factor 0.79, how to adjust, its speed to 1800."

Actually, there are still a lot of letters, but Niu Shilong simply skipped them, saving himself from being called a layman, now, it depends on how Qin Zhenhua answers, if you need paper and pencils, you can also ask someone to give it to him.

When this question was read, the masters began to shake their heads, which made Niu Shilong also wonder, could it be that he had read it wrong again?