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?
What should the driver do to follow other motor vehicles on a mountain road?
What is the meaning of this sign?
When a motor vehicle temporarily stops in fog, which lamp should be turned on?
How to ensure motor vehicles have sufficient power when driving uphill?
When a motor vehicle passes over an overflowing bridge, what should the driver do after stopping and observing closely?
When the tire pressure is too low, what will happen if the tire changes its shape in waves and increases in temperature due to fast movement?
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?
When carrying the wounded persons in coma or in danger of suffocation, they should lie face up.
When a gas tanker is leaking heavily, which of the following measures is wrong?
What is the meaning of this sign?
The article that cannot be used to stop bleeding by dressing is _________.
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.
When a wounded person suffering burns is thirsty, he may drink a small quantity of slightly salty water.
When rescuers enter the scene to rescue the wounded after harmful gas leakage caused by traffic accidents, they must wear air respirators or cover their mouth and nose with wet towels.