The God of Technology Begins with the Principal of a Technical School

Monday

The students got up from their warm beds one after another, reluctantly leaving the dormitory filled with the cold air-conditioned atmosphere, crossing the steamy walkway, and headed towards the teaching building.

It's already June and it's near the end of the semester.

This means that you cannot be lazy and absent from work, otherwise you will fail the class.

There's no way, if it weren't for the trouble of taking make-up exams, almost no one would be willing to come to the classroom to check in.

And this is also the voice of students in most colleges and universities.

However, after Xu Li improved the relevant system at Suiren Technical School, there is now only one chance to make up the exam.

If you fail a course at the end of the semester, you can make up the exam once.

But after taking the make-up exam, if you still fail.

Sorry, you can drag your luggage home.

And it is precisely because of such a strict system that some students who often want to make ends meet have become diligent.

Often, after the final exam date is notified, I will review one month in advance to avoid failing the course.

Electrician Class 1

At this time, many students have come to the classroom.

"Monitor, I heard that our teacher asked for sick leave, right?"

"Well, the teacher told me that he probably won't be able to come to class this week."

"Ah? Then who will take over the class this week?"

"I don't know, but I think the school has other arrangements."

Some students commented one after another.

Ding zero zero zero zero...

The class bell rings.

The students suddenly became quiet.

Soon, an uncle wearing a white shirt walked into the classroom, leaving the students stunned.

"Classmates! Hello! Since your teacher has taken leave, I will be temporarily teaching for you this week."

Xu Qiang stood on the podium and glanced at these students.

Substitute teacher?

The uncle in front of me is our substitute teacher?

This...

The students couldn't believe it.

"That uncle..."

A male student raised his hand weakly.

"What's your name, uncle? You need to call me teacher or Brother Qiang to know!"

Xu Li glared at him slightly.

"Yes, that teacher, I remember you seem to be the student's electrician, how come..."

Obviously, this student knows Xu Qiang.

Not to mention him, in fact, most people in the class know Xu Qiang.

Because Xu Qiang is the person in charge of electrical maintenance in the school, he solves many circuit problems himself.

Therefore, students still have some impression of Xu Qiang, a master electrician.

"Ahem, I am indeed the school's master electrician, but after discussion and decision by your principal, I have been temporarily allowed to serve as your substitute teacher."

After listening to Xu Qiang's words, the students looked at each other.

Why does it feel so unreliable?

This school just randomly found an electrician to take over the class?

This makes them feel a little perfunctory...

"Students, I know you doubt my ability and the school's decision, but as far as I know, you have now entered the practical stage, right?"

Xu Qiang asked.

The students nodded.

"Then uncle, it shouldn't be a problem for me to take you for a while."

Students: "..."

It seems to make sense, but it always feels weird.

"Okay, anyway, don't think too much about it. Uncle...Teacher, let me go directly to class. Now I will give each group in your class an electrical appliance with a circuit problem and the corresponding tools, and the problems of each electrical appliance are different.

Your task in this lesson is to try to see if it can be fixed. If it can be fixed, then try to find out why it has problems? Where does the problem occur? How to fix it?

I will give you 70 minutes, and the rest of the time will be spent answering your questions."

After Xu Qiang finished speaking, two young electricians carried a large box into the classroom.

Then distribute the problematic electrical appliances and tools inside according to the order of the group.

"Okay, now you have the problematic electrical appliances in your hands, as well as common maintenance tools, including light bulbs and small fans. These are all broken, but they can be repaired. Everything that can be repaired in this class, and answer the questions correctly

For one of the questions, I will add 10 points of credit, okay, please start now!"

Afterwards, Xu Qiang stopped talking.

He pulled up a chair on the podium and sat down while typing on the laptop he brought.

The students were stunned after seeing this operation.

No, now let’s get started?

Don't talk about anything, just ideas and stuff...

Seeing this situation, the students had no choice but to take action.

It's just that they are also a little confused and don't know where to start.

After being at a loss for a few minutes, the students began to pick up the tools in their hands and began to energize and measure the problematic electrical appliances on the table.

Gradually, the whole class clearly showed this phenomenon.

People from various groups sat together and discussed how to repair the faulty electrical appliances.

Some students will look up information about the structure of circuits when they see someone they don’t know.

Xu Qiang took a look at the situation, raised the corners of his mouth slightly, and nodded with satisfaction.

This is the right thing to do. If you don’t understand, try it first and then talk about it. At most, you can familiarize yourself with it by reading more textbooks.

He came here like this before.

Xu Qiang closed his notebook and walked downstairs.

The student groups only saw each other discussing with each other, and a few who sent the problem light tubes quickly repaired them and turned on the lights.

Although I don’t know if it was a mistake, but this is pretty good.

Now you just need to figure out where the problem with the light tube occurs, and know how to fix it.

"Why doesn't this LED light come on?"

"Yes, I have disassembled it several times and reconnected it several times. Why is it still not working?"

At this time, Xu Qiang wandered over to a student group. Seeing that they seemed troubled, he walked over and asked:

"What's wrong? Can't it be fixed?"

"Ah? Teacher, we can't fix this lamp. Teacher can't fix it..."

Several students saw Xu Qiang coming and explained.

"Let me take a look!" Xu Qiang brought over the plate-like LED, which was densely distributed with lamp beads.

Xu Qiang tried to turn on the power, but it didn't light up.

"Look, teacher, if it doesn't light up, it must be a problem with the lamp beads or the power board."

A student waved his hand, indicating that this was the result.

"Then let me give it a try."

The students made room for Xu Qiang to sit down.

Xu Qiang took apart the LED light and exposed the circuit board inside.

"Let's disconnect the power supply first, power on the lamp, and see if there is any output from the power supply."

While Xu Qiang was talking, he measured it with a voltmeter and found that there was no response.

"It seems to be a problem with the power supply. Let's take it apart and take a look."

Tear open the yellow tape wrapping the power board to reveal the inside.

There is a small "cylinder" on it - a circular knitting machine. I looked carefully up and down and found that it was not burned out.

"If you encounter this situation, don't rush to a conclusion. Use a watch to measure it first to see if the 220-volt alternating current is input."

Xu Qiang said while operating.

Still no response.

Then I measured another line and heard the watch beeping.

There is a reaction.

Finally, I measured the third line, but there was no response.

"Look, there is no response when testing the third line. The blue marker does not move. Now I will move the red marker down a little. You see there is a response, right?"

As Xu Qiang said, after moving the red pen down a little, the watch responded.

"Yeah yeah~"

Several students nodded one after another and looked at Xu Qiang's operation seriously.

"You saw it, right? Then you can know from this that the problem with this lamp is that the last measured wire is separated from the casing. I can just solder it with a soldering iron."

Xu Qiang used tweezers to bend down the wire separated from the shell, and then soldered it with a soldering iron, emitting a thin stream of white smoke.

After doing this, he continued:

"Then let's turn the power back on and see what happens?"

Xu Qiang plugged the plug in again, and the next moment, the large disc light suddenly lit up, emitting a purple-red glare.

"Wow!"

This caused a burst of exclamation from the students.

"So, when you encounter similar problems, don't be too arbitrary. First test each part of the electrical panel and wires to see where the problem is. Once you find the problem, you can naturally solve it without thinking too complicatedly."
Xu Qiang continued.

In fact, for an experienced electrician like him, this kind of problem has been encountered many times, and the solution is very simple. However, if you want to teach these students, you still have to show it, otherwise they will be easily irritable, and they may not be able to solve the problem if they are irritable.