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Question 1 of 20 5.0 Points Which would contribute most to your-(Answered)

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Question 1 of 20 5.0 Points
Which would contribute most to your annual radiation exposure?
A. Living at an elevation 1,000 m above sea level
B. Having a dental X-ray
C. Living within 50 miles of a nuclear reactor
D. Taking a coast-coast trip on a commercial flight
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Question 2 of 20 5.0 Points
Which of the following is not a common characteristic of both nuclear and conventional electric power plants?
A. Smoke stacks
B. Fuel rods
C. Water cooling systems
D. Turbines
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Question 3 of 20 5.0 Points
Which of the following is used to bathe the control rods and fuel bundles of the nuclear reactor?
A. Cadmium
B. Primary coolant
C. Water
D. Boron
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Question 4 of 20 5.0 Points
The core of the nuclear reactor consists of:
A. fuel pellet.
B. fuel rod.
C. fuel assembly.
D. All of the above
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Question 5 of 20 5.0 Points
Due to the nuclear accident of the Ukraine in the 1980's, children in the nearby country of Belarus have suffered from:
A. heart disease.
B. juvenile diabetes.
C. thyroid cancer.
D. ear infections.
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Question 6 of 20 5.0 Points
Which of the following radiation is without particles, mass, or electrical charge?
A. Beta
B. Alpha
C. Gamma
D. X-ray
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Question 7 of 20 5.0 Points
Which of the following radiation exposure is from human-related sources?
A. Soil
B. Rock
C. Radon
D. Diagnostic X-rays
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Question 8 of 20 5.0 Points
Storage or disposal of Uranium-238 waste is more difficult than other types of waste due to its toxicity and its:
A. extreme mass.
B. quick decomposition into other isotopes.
C. long half-life.
D. value to smugglers.
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Question 9 of 20 5.0 Points
All of the following are potential risks associated with nuclear-powered electricity, EXCEPT:
A. black lung disease.
B. reactor meltdown like Chernobyl.
C. leakage of stored HLW into aquifers and soil.
D. enriched uranium used as weapons by terrorist organizations.
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Question 10 of 20 5.0 Points
What is a device that converts electrical energy to chemical energy?
A. Galvanic cell
B. Electrolytic cell
C. Battery
D. Electrochemical cell
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Question 11 of 20 5.0 Points
The __________ produces electricity by "burning" hydrogen with oxygen without a flame and with relatively little heat and no light being produced.
A. storage battery
B. fuel cell
C. galvanic cell
D. anode
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Question 12 of 20 5.0 Points
What is the positive electrode of a battery where reduction takes place called?
A. Anode
B. Cathode
C. Voltage
D. Electrochemical potential
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Question 13 of 20 5.0 Points
The rate of electron flow is:
A. the size of the cell.
B. the current.
C. the voltage.
D. electrical energy.
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Question 14 of 20 5.0 Points
Which of the following is mainly considered for use in electric vehicles?
A. Hydrogen fuel
B. Methanol fuel
C. Proton exchange membrane
D. Platinum based fuel
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Question 15 of 20 5.0 Points
All of the following are drawbacks to hydrogen-powered vehicles, EXCEPT:
A. cheap generation of hydrogen fuel.
B. toxic emissions from hydrogen combustion.
C. safe storage of highly reactive hydrogen gas.
D. cheap and effective transport of hydrogen fuel.
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Question 16 of 20 5.0 Points
Which of the following has revolutionized communication and computing in the last 20 years?
A. Sandwiches of n- and p-type semiconductors
B. Formation of hydrogen from endothermic methane reactions
C. Expanded electronic storage of data
D. Privatization of telephone utilities
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Question 17 of 20 5.0 Points
What kind of energy is primarily used to bring electricity to remote areas that are far from power lines?
A. Kerosene
B. Batteries
C. Solar electric units
D. Electrical network
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Question 18 of 20 5.0 Points
Whenever a substance is oxidized:
A. it is called the oxidizing agent.
B. some other substance must be reduced.
C. it gains electrons.
D. hydronium ions are produced.
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Question 19 of 20 5.0 Points
What condition must be met for a battery to be rechargeable?
A. Either its anode or its cathode must generate a gas as a result of the electrochemical reaction.
B. It must generate electricity via an acid-base reaction rather than via an oxidation reduction reaction.
C. The battery must be open to the outside so that it can vent any internal pressure that builds up from gases within it.
D. The electrochemical reaction of the battery must be reversible.
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Question 20 of 20 5.0 Points
Very small mercury batteries have been made and used in a multitude of applications. Why have they been replaced by other kinds of batteries for most applications?
A. Mercury has become far too expensive to use in batteries.
B. Mercury is poisonous and difficult to dispose of.
C. These batteries cannot generate enough current for any modern devices.
D. Though they may be made very small, they are far too heavy to use in most applications.


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Paper#9210754 | Written in 27-Jul-2016

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