• Question
1
4 out of 4 points
Hydrogen
can also be produced from the reaction of certain metals with water and acids.
Which of the following metals has the LOWEST activity series based on the arrangement
included in Table 7.5?
• Question
2
4 out of 4 points
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?
• Question
3
4 out of 4 points
Which
of the following statements regarding oxygen is FALSE?
• Question
4
4 out of 4 points
Firefighters
are advised to use dry sand rather than wet sand to extinguish a small red
phosphorus fire, why?
• Question
5
0 out of 4 points
A soil
vapor extraction system equipped with carbon canisters is used to remediate
gasoline contamination at a gas station. Which of the following statement is
TRUE?
• Question
6
20 out of 20 points
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.
o
Question Correct
Match Selected Match
Coke A.
Carbon black F.
Coal gas I.
Coal tar pitch B.
Coal tar E.
Creosote oil H.
Coal tar distillate G.
Anthracite C.
Lignite J.
Charcoal D.
• Question 7
26 out of 30 points
Coal
gasification electric power plants are now operating commercially in the United
States and in other nations. This technology produces clean-burning hydrogen
that can be transferred to customer facilities by pipeline. Hydrogen can also
be transported in bulk by highway or rail.
1. If there
is a spill of liquid hydrogen, why will it likely burst into flame
spontaneously?
2. Why do
experts recommend the use of a thermal-imaging camera for detecting a hydrogen
leak from a pipe fitting connected to a steel cylinder of hydrogen?
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.
• Question
8
26 out of 30 points
Liquid
oxygen (LOX) is used in the aerospace industry, steel industry, electric power
plants, and hospitals.
0. A
hospital is installing their own bulk oxygen system due to their large volume
of consumption. OSHA regulation 29 CFR 1910.104(b)(2)(iii) requires owners of
bulk oxygen systems to provide noncombustible surfacing in areas where liquid
oxygen might leak during operation of the system or during the filling of a
storage container. If the hospital provides an asphalt surface in areas where
oxygen could potentially leak, will they be in compliance? Explain your answer.
1. In a
another scenario, what actions should an emergency-response crew take to
protect lives, property, and the environment at a collision scene involving
separate spills of liquid oxygen and automobile fuel?
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.
