You can open the APP software on your mobile phone, and then click the dangerous goods button below the qualification certificate to enter. Click on the mock exam in the dangerous goods interface of qualification certificate, and you can see the corresponding test questions. The specific operation method is as follows:

1, click the mobile phone to open the driving school one-stop APP software to enter.

2. After entering the interface of the software, select the area to be tested, and click the Dangerous Goods button at the bottom of the home page qualification certificate to enter.

3. Click the download button in the pop-up interface that needs to download the question bank of dangerous goods qualification certificate in this area.

4. After downloading the question bank, the page will automatically jump to the interface of dangerous goods qualification certificate, and click the mock exam button to enter.

5. Click Start Inspection in the dangerous goods inspection interface that appears.

6. At this time, you can see that you have entered the interface of the simulated examination question bank of dangerous goods qualification certificate, and you can answer the questions.