Which of the following is a purpose of a containment wall?
A. Facilitate cleanup after a release of hazardous material
B. Protect the environment and people against tank failures
C. Protect a group of vessels
D. All of the above
A. Incorrect. Containment walls minimize safety risks by containing chemical spills in a small area and thus trapping contaminants before they can spread to other areas, protecting the soil and the environment from contaminants, protecting humans from potential hazards (such as fire or chemical release), containing wastewater and contaminated rainwater until it can be drained into a proper sewage line, facilitating cleanup after a release of hazardous material, protecting the environment and people against tank failures, and sometimes protecting a group of vessels.
B. Incorrect. Containment walls minimize safety risks by containing chemical spills in a small area and thus trapping contaminants before they can spread to other areas, protecting the soil and the environment from contaminants, protecting humans from potential hazards (such as fire or chemical release), containing wastewater and contaminated rainwater until it can be drained into a proper sewage line, facilitating cleanup after a release of hazardous material, protecting the environment and people against tank failures, and sometimes protecting a group of vessels.
C. Incorrect. Containment walls minimize safety risks by containing chemical spills in a small area and thus trapping contaminants before they can spread to other areas, protecting the soil and the environment from contaminants, protecting humans from potential hazards (such as fire or chemical release), containing wastewater and contaminated rainwater until it can be drained into a proper sewage line, facilitating cleanup after a release of hazardous material, protecting the environment and people against tank failures, and sometimes protecting a group of vessels.
D. Correct. Containment walls minimize safety risks by containing chemical spills in a small area and thus trapping contaminants before they can spread to other areas, protecting the soil and the environment from contaminants, protecting humans from potential hazards (such as fire or chemical release), containing wastewater and contaminated rainwater until it can be drained into a proper sewage line, facilitating cleanup after a release of hazardous material, protecting the environment and people against tank failures, and sometimes protecting a group of vessels.
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Laminated veneer lumber (LVL) is
A) produced by gluing together wood veneers that are approximately 1/8 in. thick. B) glued with all veneers running in the same direction. C) generally used as floor joists and beams. D) stronger along the grain and weaker across the grain. E) all of the above.
Which statement best summarizes the logic behind the creation of the Montreal Protocol?
A) Ozone depletion is an issue best left to Third World countries. B) The ozone is too large an issue for any single nation. C) The hole in the ozone layer is not related to human activities. D) Ozone protection is best left as a private sector matter.
When the performances of systems are analyzed, it is necessary to:
A) Analyze the systems the same amount of time to ensure an accurate analysis. B) Analyze the systems at the same location to ensure an accurate analysis. C) Analyze the systems under the same conditions to ensure an accurate analysis. D) Analyze the systems at the same time of day to ensure an accurate analysis.
In the accompanying figure, the letter L indicates the ____.
A. linear dimension B. lateral dimension C. length dimension D. location dimension