Sure enough, the competition changed the subject!

Zhang Jianguo's words were like a bombshell, which suddenly caused huge waves, and the players who were complacent about stealing the question were like ashes, and in order to be able to see through the topic of the competition, the price they paid was too great, and some even included her body!

Sitting in the front row of several senior engineers of the passenger department, these years have been used to playing such a game, not only let them get both money, but also at ease, just now I think that the new Director Zhang can not do without them in this part of the problem, who knows that he quietly took the competition question from his colleagues in the Liaodong Railway Bureau!

This is undoubtedly a great news for those players who have no way to pass the question, they applaud excitedly, their hands clap painfully and refuse to stop, they are happy to have such a head of the passenger transport system, and proud!

Zhang Jianguo stretched out his hand to press, signaling everyone's applause to stop, and then continued: "Although I don't know what the specific topic of the road is, but everything is changing, at that time my requirement was to take the passenger transport regulations as the mainstay, supplemented by other rules and regulations, the proportion is 70% and 30%, everyone as a technical leader in the passenger transport system, not only to master the passenger transport system should know the regulations, but also to master the knowledge related to the passenger transport business, the competition is to compare everyone's comprehensive technical business quality!" ”

The warm applause gradually stopped, and Zhang Jianguo solemnly announced: "The Fifth Technical Exhibition Competition of the Passenger Transport System of Songjiang Railway Bureau starts now!" Please ask the invigilator to get to work, and other unrelated personnel to leave! ”

After the team leader and coach of each sub-bureau left, Zhang Jianguo opened the seal of the document bag on the spot, and took out the theory and practical questions of the conductor, salesman and conductor group, the bureau technical performance competition is a theoretical and practical examination, the time is 2 and a half hours a total of 150 minutes, after the host announced the rules of the competition, the three senior engineers of the passenger transport department took over the three groups of test questions from Director Zhang with complex feelings, and copied the competition questions on the temporary blackboard set in front of the three groups.

The contestants immediately began to copy the questions on the all-white test paper and began to answer the questions. Because the host has clearly informed that the amount of questions in this competition is very large, the contestants should choose to answer first, otherwise the time may not be enough, the contestants are copying a question to answer a question, and if they encounter something that they can't do or can't get accurate, they will be vacant, and then answer the next question.

The speed of answering questions should not only be fast, but also the handwriting should be neat, which is a great test of the skills of the contestants, Xiao Yuanhang is undoubtedly a master in this regard, not only the speed of answering the questions is fast, but the handwriting is also very neat. As Director Zhang Jianguo said, about 70% of the test questions are the content of passenger transport regulations and operating standards, which is not difficult for the contestants who can come to the Railway Bureau to compete, but 30% of the relevant regulations and knowledge parts are unpopular, and many contestants are sweating profusely!

Xiao Yuanhang found that 30% of the relevant regulations and knowledge were not only unpopular, but also "cold"! The reason is that the question is not according to the content of the regulations, but to ask questions that are out of the way, and it can be seen that the expert who came out of the question is very active, and he is interested, and the questions raised are very casual, which makes it difficult for the person who answers the question to grasp, because there is no such problem in the regulations!

In the theory part of the exam, there is such a question, which is about the fire and explosion safety of passenger trains: open flames are prohibited on passenger trains, why can a stove be used in a dining car?

Xiao Yuanhang believes that this question can stump a large number of contestants, because everyone understands this question in their hearts, but they don't know how to answer. As a result, he learned afterwards that everyone answered a variety of answers, some of which were for the flight attendants and passengers to cook; Some food trucks are allowed to use stoves; What's even funnier is that some people answered, if you don't let you use the stove, why hang the food truck? As a result, such answers were judged to be inaccurate. …,

Xiao Yuanhang has done safety work for many years in his previous life, although he doesn't know what Lu Dao promised exactly, but after a little thought, he replied decisively: Because the stove on the dining car is a safe fire source! It turned out later that out of all 45 players, only Xiao Yuanhang answered correctly.

There are several questions in the practical part that are even more outrageous, one of which is about the emergency braking of passenger trains: there is such a provision in the technical regulations on how to use the emergency brake valve, and the air gauge must be read first on the long downhill ramp, if the air gauge pointer has dropped by 1 kg from the constant pressure, the emergency brake valve shall not be used again. What is it for? What is the meaning of the gauge pressure of 6 kg?

The passenger transport system is the user of the equipment, as long as it can be used, there is no need to know the technical principle, and this question is exactly the technical aspect. The emergency brake valve on the passenger train is an emergency that endangers the safety of the train, and it is necessary to use the emergency stop, as for the wind gauge pointer on the long downhill ramp has dropped by 1 kg from the constant pressure, what is not allowed to use the emergency valve, as a passenger attendant does not need to know the road at all, and it is strictly implemented in accordance with the regulations, but this problem occurs in this competition.

The braking system of the railway train is realized by the high-pressure wind, and the wind gauge pressure test is carried out by the train inspectors before the train starts, and the wind pressure specified by the passenger train is 6 kg, and the wind pressure of the freight train is 5 kg. In the nineties, it was changed to the international unit of pressure measurement KPA (kilopascals), which is 600KPA for passenger trains and 500KPA for freight trains.

As for the first question, when the gauge pressure has dropped by 1 kg from the constant pressure, Xiao Yuanhang doesn't know what the road is for, and he can't use the emergency brake valve to stop the car, but the second question: What is the meaning of the gauge pressure of 6 kg? But he knew what he knew. Because in his previous life, when he was chatting with a car inspector during a ride, he thought that the captain and the driver always used the radio to shout the tail wind pressure of 600KPA when they were on the wind pressure, so he asked him what he meant. The inspector said that the train relies on the wind system to push the brake shoe to press the wheels to achieve braking, and 600KPA means that the pressure per square centimeter of the contact surface between the brake shoe and the wheel is 600KPA, which is what we usually call 6 kg!

Xiao Yuanhang deduced from this that the wind pressure of the passenger train is 1 kg higher than that of the freight train, in order to ensure the absolute safety of the passenger train. If you want to realize the emergency braking stop of the passenger train on the long downhill road, you need more powerful braking force, when the wind pressure has dropped by 1 kg by the constant pressure of 6 kg, that is to say, when the pressure is only 5 kg, it is not enough to make the passenger train stop safely, so it is stipulated that even if an emergency occurs at this time, the emergency brake valve shall not be used to stop again, if the emergency brake valve is used in this case, the train is likely to not only not stop on the long downhill, but the wind power of the train braking system is exhausted, The train lost its braking ability, causing the train to "herd sheep" on the long downhill slope, resulting in the serious consequences of the car being destroyed and people killed!

As it turned out later, Xiao Yuanhang's inference was correct again!

PS: It's the weekend again, please don't forget to vote for the old song while reading and relaxing!!