| 1. |
_____________ is a term used to describe the characteristic of a substance as to its capability to give off a hydrogen ion (a proton). |
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Acidity |
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Aeration |
| 2. |
Clarity of water should be maintained at all times during the pool season, not only for attractiveness, but also as an indication of proper equipment functioning and as an accident prevention means. |
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True |
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False |
| 3. |
The following first aid techniques are most often used to revive drowning victims: |
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Mouth-to-Mouth Resuscitation |
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Artificial Respiration |
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Cardio-Pulmonary Resuscitation |
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All of the above |
| 4. |
Respiration is the process by which water passes from a liquid state at temperatures below the boiling point to vapor. |
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True |
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false |
| 5. |
_____________ is the property of a material, which permits appreciable movement of water through it when saturated and actuated by hydrostatic pressure of the magnitude normally encountered in natural subsurface waters. |
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Permeability |
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Flocculation |
| 6. |
The adherence of dissolved, colloidal, or finely divided solids on the surfaces of solid bodies with which they are brought into contact is called ______________. |
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Adsorption |
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Absorption |
| 7. |
The application of chlorine to water, generally for the purpose of disinfection, but frequently for accomplishing other biological or chemical results is termed as Chlorination. |
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True |
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False |
| 8. |
_______________ is defined as the process of taking measurements or of making observations to establish the relation between two quantities. |
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Calibration |
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Colloids |
| 9. |
__________ is a chemical abbreviation used to describe the presence of the hydrogen ion in water. |
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pH |
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Oxidation |
| 10. |
Air Agitation is defined as the process of agitating sand in a rapid sand filter during the washing by injecting air under low pressure into bottom layers of the sand bed. |
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True |
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False |
| 11. |
What does EPA stand for? |
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Environmental Protection Agency |
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Electrical Protection Agency |
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Environmental Policy Association |
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None of the above |
| 12. |
Trough is defined as a term used to represent the content of carbonates, bicarbonates, hydroxides, and occasionally borates, silicates, and phosphates in water. |
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True |
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False |
| 13. |
_______________ is defined as the gradual deterioration or destruction of a substance of material by chemical action, frequently induced by electrochemical processes, the action proceeding inward from the surface. |
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Corrosion |
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Condensation |
| 14. |
______________ is the physical process of removing dirt particles and solids to prevent impeding the disinfection process. |
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Filtration |
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Slurry |
| 15. |
______________ is a controlled outlet on a pipeline, tank, or conduit used to discharge water or accumulations of material carried by the water. |
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Blowoff |
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Orifice |
| 16. |
Coagulant is a material which, when added to water, will combine with certain substances ordinarily present and form a precipitate comprising floc particles more or less gelatinous in character, having the capacity to remove colloids from water. |
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True |
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False |
| 17. |
_______________ is the process of removing suspended or colloidal matter from a turbid liquid. |
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Clarification |
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Distillation |
| 18. |
Wading pools are pools in which the water is constantly pumped from the pool, filtered, disinfected, and pumped back into the pool. |
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True |
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False |
| 19. |
_____________ is defined as the cohesive force existing between particles of a fluid which causes the fluid to offer resistance to a relative sliding motion between particles. |
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Viscosity |
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Surface Tension |
| 20. |
The clogging of a filter, pipe, or pump due to the presence of entrapped air is called Air Binding. |
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True |
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False |
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