Hazardous substances · driving theory questions

Practice "Hazardous substances". 15 driving theory questions with AI explanations. Free, official source material, mobile and desktop.

Sample questions

1. Brake fluid produced on the basis of glycols are:

   • harmless for people
   • useful for people
   • toxic for people

2. How are the hydrocarbons, emitted in the atmosphere, detected in case of incomplete burning of the fuel?

   • hydrocarbons are odourless and their presence may not be detected
   • no hydrocarbons are emitted in the atmosphere in case of incomplete burning of the fuel
   • hydrocarbons have a sharp odour and cause irritation of the eyes and nose

3. The anti-freeze liquid is:

   • harmless for people
   • toxic for people
   • useful for people

4. The most toxic and dangerous component in case of incomplete burning of fuel is:

   • carbon monoxide
   • nitrogen oxides
   • hydrocarbons

5. Engine oils are:

   • non- burning
   • flammable

6. The toxic components of exhaust gases vented into the atmosphere are:

   • more in engines burning propane/butane mixture than in diesel engines
   • more in engines burning propane/butane mixture than in gasoline engines
   • more in gasoline engines than in diesel engines

7. Ethylated gasoline is:

   • harmless for people
   • healthy for people
   • toxic for people

8. The highest concentration of carbon monoxide is contained in the exhaust gases of the engine:

   • when the engine is idling
   • when the load on the engine is abruptly increased

9. Nitrogen oxides emitted in the atmosphere in case of incomplete burning of the fuel:

   • do not affect people
   • cause injuries mainly to the eyes
   • affect mainly the respiratory system and cause shortness of breath

10. Greases used in vehicles foam when in contact with water:

    • incorrect
    • correct

License categories

• C