| 1. |
What does MTBE stand for?
|
|
|
Methyl tertiary-butyl ether |
|
|
Methane tertiary-butyl ether |
|
|
Methyl Tetra Butyl Ether |
|
|
None of the above |
| 2. |
Two types of oxygenates are commonly added to gasoline. They are ______________________:
|
|
|
Ethers and alcohols |
|
|
Methane and Butyl |
| 3. |
MTBE is currently the most commonly used ether oxygenate due to its high-octane properties and availability. |
|
|
True |
|
|
False |
| 4. |
Oxygenates were subsequently used at higher concentrations to reduce vehicle emissions and improve air quality. |
|
|
True |
|
|
False |
| 5. |
______________ and other oxygenates generally have high vapor pressures, and they tend to volatilize readily from NAPL. |
|
|
MTBE |
|
|
Methane |
| 6. |
Oxygenates have high tendency to volatilize from groundwater, and so the soil vapor in the vicinity of a dissolved-phase plume may only contain low, or even non-detectable, oxygenate concentrations. |
|
|
True |
|
|
False |
| 7. |
What does TPH stand for?
|
|
|
Total petroleum hydrocarbons |
|
|
Simple crystal frequency synthesizer |
|
|
Total petroleum hydrogen |
|
|
Tetra Poly-Hydrocarbons |
|
|
None of the above |
| 8. |
Risk-based decision-making is a management strategy that adds exposure and risk considerations to the traditional components of the corrective action process.
|
|
|
True |
|
|
False
|
| 9. |
A ________________ is an inventory of the actual and potential sources, pathways, and receptors related to the chemical release. |
|
|
Conceptual site model (CSM) |
|
|
Analytical method |
| 10. |
The conceptual model is used in several ways. They are as follows: |
|
|
To communicate site conditions to decision makers and stakeholders |
|
|
To define potential exposure pathways for further investigation and evaluation |
|
|
To derive pathway-specific, risk-based remedial goals |
|
|
To select pathway-specific remedies to meet remedial goals |
|
|
All of the above |
| 11. |
The most common receptors affected by subsurface releases of oxygenates are the current and future users of potable or non-potable water from municipal or private water wells. |
|
|
True |
|
|
False |
| 12. |
The objective of receptor characterization is to identify any receptors that could be affected by an oxygenate release. |
|
|
True |
|
|
False |
| 13. |
The purpose of __________________is to estimate the extent (and to a lesser degree, the magnitude) of a subsurface release of oxygenated fuel.
|
|
|
Plume delineation |
|
|
Geological characterization |
| 14. |
The purpose of flow system (hydraulic) characterization tasks is to understand the local and regional groundwater flow system and its impact on the migration of a dissolved plume.
|
|
|
True |
|
|
False |
| 15. |
Dissolved-phase oxygenate plumes may display same geometries as dissolved-phase BTEX plumes.
|
|
|
True |
|
|
False |
| 16. |
What does ESA stand for?
|
|
|
Expedited Site Assessments |
|
|
Empirical Site Assessments |
|
|
Expedited Site Association |
|
|
None of the above |
| 17. |
The objectives of groundwater monitoring may include evaluating seasonal changes in site conditions, documenting evidence of source depletion, evaluating plume stability or migration, or assessing the effectiveness of corrective actions. |
|
|
True |
|
|
False |
| 18. |
Direct push (DP) tools are used for subsurface investigations by driving, pushing, and/or vibrating small-diameter hollow steel rods into the ground. |
|
|
True |
|
|
False |
| 19. |
There are two primary types of soil sampling tools. They are___________________. |
|
|
Non-sealed samplers and piston sampler |
|
|
Collecting and Load sampler |
| 20. |
Multi-level groundwater monitoring can be accomplished by simply installing clusters of single interval monitoring wells at different depths. |
|
|
True |
|
|
False |
|
