Topic 4: Why the tunnel is slippery.

The reason is that the tunnel pavement is easily wet and slippery due to environmental influence; Automobile exhaust gas is deposited on the road surface, forming an oil film on the road surface; It is easy to freeze when it is cold near the tunnel exit.

Subject 4, also known as subject 4 theory test and driver theory test, is a part of motor vehicle driver's license assessment.

The original exam consists of a theoretical exam in subject one, two exams in subject two, an electronic exam and three exams in subjects. According to the order of the Ministry of Public Security 123, there will be a theoretical test after the road test. Because this exam was conducted after subject three, everyone used to call it the four-meeting exam. There is no subject 4 1 in the actual official statement (that is, the order of the Ministry of Public Security 139).

Subject 4 lists the knowledge about safe and civilized driving, safe driving skills under complex conditions and emergency handling in the original subject 1, and puts it after the actual road driving test in "Subject 3" to further test the traffic quality of candidates.

Examination content

The main contents include: safe and civilized driving operation requirements, safe driving knowledge in bad weather and complex road conditions, emergency handling methods such as tire puncture, and handling knowledge after traffic accidents.

1. According to the driver's license type, choose 50 questions from the corresponding subject four test questions bank, choose from 1240 questions for automobile driver's license and 1235 questions for cart driver's license, with 2 points for each question.

2. The examination time is 45 minutes. If there is an error of 12 (6 questions) in the process of answering questions, the exam will be terminated.

3. Test questions are divided into true or false questions (1-20 questions), multiple-choice questions (20-40 questions) and multiple-choice questions (4 1-50 questions).

4. Test questions include picture questions, scene recognition questions and text narrative questions.

The above contents refer to:

Baidu Encyclopedia-Theme 4