33. When putting out a fire disaster that gives out erosive steam or poisonous gas, the firefighters should wear gas masks and other related protective articles and should operate from the windward side.

Answer：Y

Previous question: 32. Dangerous chemicals possess the characteristics of explosion, inflammation, poison, erosion and radiation.

Next question: 34. When a gas tanker is leaking heavily, which of the following measures is wrong?

2025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 2025 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

What is the meaning of this sign?
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.
What is the meaning of this sign?
What is the meaning of this sign?
What is the meaning of this sign?
Dangerous chemicals possess the characteristics of explosion, inflammation, poison, erosion and radiation.
When a wounded person is under the wheel or cargo, the wrong method is to pull the limbs of the wounded.
When the tire pressure is too low, what can happen when driving at a high speed?
What should the driver do to follow other motor vehicles on a mountain road?
When a motor vehicle stops in snow, which lamp should be turned on?
At the scene of a traffic accident, once there is a leakage of toxic and harmful substances, people must be evacuated at the first time and alarmed immediately.
What is the meaning of this sign?
When rescuing a person sustaining full-body burns the rescue personnel may spray cool water to his body to put out the fire.
What is the meaning of this sign?
What is the meaning of this sign?
What is the meaning of this sign?