18. Field filters should be:
Made out of cardboard boxes.
Filled with rocks, crushed cans, sticks, or grass.
Covered with a screen.
b and c.
a, b, and c.
19. Field incinerators should be located:
At least 70 yards from any source of water used for drinking.
No closer than 50 yards to a kitchen.
No further than 50 yards from the food service area.
At least 50 yards downwind from the camp.
20. If a 55-gallon drum is used to strain garbage before burning, where should the
holes be punched?
Everywhere except the top.
21. Pits or trenches should NOT be over ________ from the food service area.