- Diamond and graphite are the two primary allotropes of carbon. Neither is generally considered hazardous, but they have their own specific uses. Choose which of the following statements is TRUE regarding these allotropes.
Diamond and graphite undergo phase changes from solid to liquid at moderately high temperature. | ||
Diamond and graphite do not burn. | ||
Diamond and graphite have different chemical structures. | ||
Diamond and graphite are poor conductors of heat. |
4 points
Question 2
- An employee at a municipal water treatment plant was experiencing chest pain, nausea, and burning of the eyes and throat. The industrial hygienist has determined that it may be due to chlorine exposure at which levels?
1-hr exposure at 0.5 – 2 ppm | ||
1-hr exposure at 2 – 20 ppm | ||
1-hr exposure at > 20 ppm | ||
8-hr exposure at 1 ppm |
4 points
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Write My Essay For MeQuestion 3
- Which of the following statements regarding oxygen is FALSE?
There are three allotropes of oxygen: GOX, LOX, and ozone. | ||
LOX is cryogenic oxygen. | ||
Gaseous oxygen under increased pressure is called hyperbaric oxygen. | ||
Industrial facilities that use large quantities of oxygen often store it as the cryogenic liquid. |
4 points
Question 4
- Underground coal mining presents workers with many hazards EXCEPT which of the following? Choose the best answer.
Potential for fire and explosion due to methane | ||
Prolonged inhalation of coal dust could cause pneumonoconiosis (black lung disease) | ||
Mine collapse | ||
Skin irritation |
4 points
Question 5
- Where in the Emergency Response Guidebook(ERG) can an environmental health and safety (EHS) and/or fire service (FS) professional find the initial isolation distance for a small leak of a phosphorus trichloride?
Green section |
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Orange section |
||
Yellow section |
||
Orange and green sections |
4 points
Question 6
- Although coal is no longer the favored energy source, U.S. coal mines still produced close to a billion short tons of coal. Match the description of the following chemical products obtained from or related to coal.
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20 points
Question 7
- Coal is mined worldwide for use mainly at power plants to generate electricity.
- Discuss why coal in a crushed, granulated, or pulverized form spontaneously combusts? In addition, what health effects are associated with coal dust?
- Another form of carbon is activated carbon. Discuss what activatedcarbon is, and provide at least two of its industrial or medical applications.
Your total response must be at least 200 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced. Paraphrased and/or quoted material must have accompanying citations in APA format.
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30 points
Question 8
- A chlorine manufacturing company offers a rail carrier 2700 lb (1227 kg) of liquefied compressed chlorine for transportation contained in a ton-container.
- Describe how this rail carrier will comply with DOT transportation requirements.
- Provide at least two examples to demonstrate the corrosive nature of chlorine gas.
Your total response must be at least 200 words in length. You are required to use at least your textbook as source material for your response. All sources used, including the textbook, must be referenced. Paraphrased and/or quoted material must
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