Chapter 4

1. Which type of radiation can be reduced or stopped by a layer of clothing, a thin sheet of metal, or a thick Plexiglass?

2. The conversion of a liquid to vapor:

3. Posionous materials are known to be _____ to humans.

4. Where are you MOST likely to find gases or vapors with vapor density greater than one?

5. Which of the following statements about a hazardous materials state of matter is MOST accurate?

6. When is topography a factor in hazmat incidents?

7. addition to burning, all flammable and combustible liquids exhibit varying degrees of:

8. Asphyxiants, irritants, convulsants, and carcinogens are types of:

9. What BEST describes compressed gas?

10. The ALARA principle uses time, distance, and __ to limit exposure to radiation.

11. Overhead power lines, highway traffic, and rail lines are examples of:

12. What is the pressure exerted by a saturated vapor above its own liquid in a closed container?

13. Class 8 hazards are either a liquid or a solid that cause full thickness destruction of human skin at the site of contact because they are:

14. The damaging effects of ionizing radiation occur at the __ level.

15. Incidents involving _____are potentially the most dangerous for emergancy responders.

16. Which class of hazards is characterized by thermal and mechanical hazards in the form of blast pressure waves, shrapnel and fragmentation, and incendiary thermal effects?

17. Fla1mnable gases have:

18. Static electricity, internal combustion engines, and heated surfaces are examples of:

19. Organic peroxides are both an oxidizer and a fuel, making them very:

20. The concentration (in air) at which the "average person" can smell a particular compound is the: