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?

2026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 2026 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 rescuing a wounded person who has been poisoned by toxic gas, the first measure is to send him/her to a place with fresh air so that he/she will not continue to be poisoned.
When there is bleeding at the bone fracture of a wounded person, the first thing to do is to keep it in position before stopping the bleeding and dress the wound.
What is the meaning of this sign?
Which of the following method is correct to rescue an unconscious person?
What is the meaning of this sign?
The wrong method to rescue a poisoned person in a traffic accident is to ______.
When a motor vehicle temporarily stops in fog, which lamp should be turned on?
When driving on a long downhill road, which is the best way to control the speed?
When rescuing a wounded person suffering from bone fracture, which of the following should be kept in mind?
When a motor vehicle encounters a burning phenomenon, it should leave the vehicle quickly so as not to cause injury or asphyxia to the respiratory tract.
What is the meaning of this sign?
How should lamps be used when motor vehicle drivers pass through a two-way tunnel?
How should lamps be used when a motor vehicle meets an oncoming bicycle on a narrow road or a narrow bridge at night?
When driving on road sections where safe sight distance is affected, such as the top of a ramp, what should drivers do to ensure safety?
What is the meaning of this sign?
What should be done by the driver who intends to overtake but finds that the vehicle in front is also overtaking?