54 7-19. What is the appropriate procedure to follow when biological agents are known to have been placed in your drinking water? 1. Double the amount of chlorine in the water 2. Double the time the water is exposed to the chlorine 3. Boil the water before you drink any of it 4. Refrain from drinking the water 7-20. Presenting a serious internal radiation hazard, alpha particles can enter the body through which of the following? 1. The digestive system 2. The respiratory system 3. Open wounds 4. Any of the above 7-21. Of the following, which type of radiation has the greatest penetrating power? 1. Alpha 2. Beta 3. Gamma 4. Neutron 7-22. In the event of a nuclear detonation, what is the best position to assume? 1. Sitting, with the knees drawn up to the chest, facing away from the blast 2. Face down, with your face covered 3. On your side, in a fetal position facing away from the blast 4. Supine, with your face covered 7-23. The treatment of thermal burns from a nuclear detonation differs from more conventional burn wounds in which, if any, of the following ways? 1. Conventional burn wounds are generally less serious 2. Conventional burn wounds are more likely to become infected 3. Burns resulting from a nuclear detonation are more painful 4. There is no difference 7-24. When using antibiotics for victims of radiation injuries, what is the recommended dosage? 1. One-half of the normal dosage 2. The normal dosage 3. Two times the normal dosage 4. Three times the normal dosage 7-25. Approximately what number of calories must be burned or consumed for the average individual to lose or gain one pound? 1. 1,500 2. 2,000 3. 3,500 4. 5,000 7-26. Which of the following nutritive elements are considered the "building blocks" of the body? 1. Fats 2. Carbohydrates 3. Minerals 4. Proteins 7-27. What happens to protein consumed that is in excess of body requirements? 1. Used to supply energy only 2. Changed into fat only 3. Both 1 and 2 4. Excreted from the body through elimination