| Question | Answer | % Correct |
|---|---|---|
| Chlorine is available as which of the following? | All of the above | 100%
|
| The TCEQ allows the reuse of treated wastewater for which of the following? | All of the above | 92%
|
| Chlorine combines with ammonia in wastewater to form ________. | chloramines | 92%
|
| The TCEQ requires at least ________. | 1 mg/L residual after 20 minute contact | 83%
|
| How many minutes of detention time should a chlorine contact chamber have at peak flow? | 20 minutes | 83%
|
| Chlorine equipment shall be capable of which of the following? | All of the above | 83%
|
| Which of the following is a good disinfectant? | Chlorine | 83%
|
| Forms of chlorine used in wastewater treatment include which of the following? | All of the above | 75%
|
| Reclaimed water providers must report monthly to TCEQ the ________ and ________ of reclaimed water delivered to a user | volume/quality | 75%
|
| Disinfection may also be accomplished by which of the following? | All of the above | 67%
|
| Chlorine may be used for which of the following? | All of the above | 67%
|
| Reclaimed water piping must be color-coded ________. | purple | 67%
|
| Chlorine could be used as an aid in trickling filter operation to ________. | breakup a ponding problem | 58%
|
| Because UV Light is not a chemical, it ________. | does not alter the physical properties of the water | 58%
|
| At 20°C the HOCl concentration will vary with the pH as follows ________. | pH 7: 80% HOCl | 58%
|
| When gas chlorine is added to water, which of the following is formed? | HOCl AND CaCl2 | 50%
|
| Gas chlorination facilities should be equipped with a ________. | bottle of ammonium hydroxide | 42%
|
| If a chlorine dosage of 12 mg/L is added to a wastewater effluent containing ammonia and the chlorine demand is 11.5 mg/L, the residual would be which of the following? | Sufficient AND a monochloramine | 42%
|