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CAWT- Proj.Folder
Enviro. Techniques Test #1 - Part D
| Question | Answer |
|---|---|
| Refers to how close multiple measurements of the same quantity come to each other. | Precision |
| The ________ of a measurement is determined by the number of figures in the measurements. | Precision |
| Readings are more likely to be _______ made from a thermometer graded in tents of degrees as opposed to a thermometer that only marks the nearest degree. | precise |
| Refers to how close a measurement (or the average of multiple measurements) come to the true or accepted value. | Accuracy |
| _____depends not only on the measuring device but also on the technical skill of the person making the measurement, the proper calibration of the instrument, is the proper instrument used for the proper range of concentration, and is the instrument clean. | Accuracy |
| Think of shooting at a target: _______ depends on how close the shots are to the center of the target. ________ depends on how close the shots are to each other. | Accuracy and precision |
| Are figures in any measurement that are known with certainty plus one digit that is uncertain. Only one estimated digit is ever recorded as part of a measurement. | Significant Digits |
| data is said to be _____ if you are dealing with one exact value, i.e. one egg or six eggs… You can’t have 1.8 eggs. A Square has four sides, not 4.3 sides. | discreet - Discreet Numbers |
| Data is said to be _______ when dealing with items that are infinite or continuous. | continuous - Continuous Numbers |
| The exact value cannot be determined. The measurement is only as accurate as the instrument used. | Continuous Numbers |
| BOD | biological oxygen demand |
| COD | chemical oxygen demand |
| This Constructed wetland is an older design that does not perform well in cold climates. Open water areas are relatively unproductive with slower bacterial processes. | Surface Water Flow (free water flow) |
| This wetland type keeps wastewaters in maximum contact with bacteria rich biofilms and root zones. | Subsurface Flow |
| Performs well as tertiary treatment or in conjunction with a subsurface flow system. | Surface Water Flow (free water flow) |
| They perform well in cold climates and permit the most versatile designs. | Subsurface Flow |
| _____ are designed to make use of greenhouse, green roof and hybrid environments. Because they concentrate bacterial activity, they can be tailored for unique waste types (e.g. silver-rich effluent from film processing, winery effluent). | Plant Cells and Living Machines |
| Individual wetland components can be added to conventional wastewater treatment to play a very specific role (e.g. degradation of benzene by fungi and bacteria). | Plant Cells and Living Machines |
| How do constructed wetlands function in cold conditions? | More slowly as temperatures decline. |
| Name the four treatment parameters: | Conversion of nitrogenous waste (urea, uric acid). Solids removal (sediment and heavy metals). Biochemical oxygen demand (BOD) reduction. Pathogen removal (E. coli removed by viral coliphages). |
| This factor requires 72 hours as the target residence time (temperature dependent). | Hydraulic Resistance Time (HRT) |
| Which organic nitrogen does alternative wastewater treatment focuses on? | urea and a uric acid |
| If _______ gets too high at endpoint then there’s a problem in the system. | Ammonification |
| These organisms break down ammonia and ammonium which are toxic substances. | Aerobic and anaerobic bacteria |
| As nitrification occurs, two compounds are the products that indicate that the system is doing well based on their abundance. | nitrate and nitrite |
| The last stage is ________ where nitrogen is converted into gas and released into the atmosphere as opposed to remaining in the environment. | Denitrification |
| Three limiting Factors that can be out of sync with design parameters include: | The need for pretreatment. Size and flow rate. Waste input (amount and type). |
| The purpose is to retain complete and easily retrievable program records, which is an important record filing tool in a professional office setting. | Soils Project Folder |
| A project file should be ________ and allow for an ease in handing off project information from one employee to another. | organized - Soils Project Folder |
| It is an easy way to ______ important project information when needed for project data analysis and reporting or to review project information once the project is finalized. | locate - Soils Project Folder |
| T/F: It is not critically important to access such information if the project goes to court or an Ontario municipal Board hearing. | False |
| A ______ is anything that contains information that needs to be kept as evidence of a decision or an action. | record |
| T/F: A record may be email, lab report, phone voicemail message, memo to file or any other documentation that is relevant to the project. | True |
| The ability to demonstrate the origin of the document and the identity of who created and/or revised the document. (Authenticity, Integrity, Accuracy, Completeness or Trustworthiness) | Authenticity |
| The ability to show that controls are in place to prevent the material content from being changed or amended after the document was created. (Authenticity, Integrity, Accuracy, Completeness or Trustworthiness) | Integrity |
| Being able to show that the document is correct and factual. (Authenticity, Integrity, Accuracy, Completeness or Trustworthiness) | Accuracy |
| Demonstrating that all parts of the document are intact and reliable. (Authenticity, Integrity, Accuracy, Completeness or Trustworthiness) | Completeness |
| Demonstrating that the document provides reliable, accurate and complete record of information. Therefore staff can rely on the information in the document. (Authenticity, Integrity, Accuracy, Completeness or Trustworthiness) | Trustworthiness |
Created by:
ctherria
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