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

What should motor vehicle drivers do when parking temporarily on a rainy day?
Which of the following method is correct to rescue an unconscious person?
What is the meaning of this sign?
What is the meaning of this sign?
When a motor vehicle stops temporarily in a rainy day,which lamp should be turned on?
How to reduce speed or stop when driving on a road covered with snow and ice?
What is the meaning of this sign?
When rescuing a wounded person in coma, it is necessary to take warm-keeping measures to prevent heat loss.
Which of the following is a bad habit when changing lanes?
When a wounded person suffering burns is thirsty, he should only drink plain boiled water.
When there is no bondage for rescuing a wounded person, towels, handkerchiefs, bed sheets and stockings can be used for dressing.
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.
What is the meaning of this sign?
What should the driver do when he/she encounters an oncoming ambulance in the same lane?
How will the adhesive force of road change when speed increases on a damp and slippery road?
What is the meaning of this sign?