27. Gun powder, explosives and detonating powder belong to which of the following dangerous chemicals?

A. Oxidizing materials

B. Inflammable solid materials

C. Explosives

D. Self-igniting articles

Answer：C

Previous question: 26. When there is bleeding at the bone fracture of a wounded person, the first thing to do is to fix the wounded part in position, then stop the bleeding and dress the wound.

Next question: 28. Matches, sulfur and red phosphorus are _________.

2024年摩托车科目四英文版题库共345题，你可以免费查看前50题，完整版题库请添加微信购买：

The English version of the 2024 motorcycle subject 4 question bank has a total of 345 questions. You can view the top 50 questions for free. Please add WeChat to purchase the complete version of the question bank.

科目四试题

When a motor vehicle encounters an accident, the driver should pay attention to whether there is fuel leakage, pipeline rupture, so as avoid accidents.
What is the meaning of this sign?
When carrying the wounded persons in coma or in danger of suffocation, they should lie face up.
The drivers, loaders and supercargoes responsible for dangerous chemicals transportation should all full understand the chemical characteristics, potential risks, features of the packaging containers and emergency measures for any unexpected accidents.
Matches, sulfur and red phosphorus are _________.
When there is bleeding at the bone fracture of a wounded person, the first thing to do is to fix the wounded part in position, then stop the bleeding and dress the wound.
When rescuing a wounded person suffering from bone fracture, which of the following should be kept in mind?
When rescuing a wounded person in an emergency, it is necessary to firstly stop the bleeding by compression before other methods are taken according to the conditions of bleeding.
When rescuing a wounded person in coma, it is necessary to take warm-keeping measures to prevent heat loss.
When discovering animals crossing the expressway on the highway, the driver should not drastically turn to evade.
Rescue personnel should check the breath of the unconscious person before applying any other emergency treatment.
When rescuing a wounded person who has been poisoned by toxic gas, the first measure is to send him to a place where air is fresh so that he will not continue to be poisoned.
Dangerous chemicals possess the characteristics of explosion, inflammation, poison, erosion and radiation.
Which of the following method is correct to rescue an unconscious person?
The wrong method to rescue a poisoned person in a traffic accident is to ______.
The article that cannot be used to stop bleeding by dressing is _________.