AnswersSC332 Environmental Science BNuclear Energy

Nuclear Energy Answers

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1
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The following graph compares the greenhouse gas emissions from different forms of electricity production.Which conclusion is supported by the information in the graph?

Question illustration
A
Nuclear power releases less greenhouse gases than other forms of power.
B
Nuclear power releases an average amount of greenhouse gases.
C
Nuclear power releases no greenhouse gases.
D
Nuclear power releases more greenhouse gases than other forms of power.
2
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Which disadvantage of nuclear power use poses the greatest threat to the environment?

A
the emission of greenhouse gases
B
the proliferation of nuclear materials
C
the storage and management of radioactive wastes
D
the high cost of building facilities
3

A(n)

Answer not available
4

Which statement describes the function of control rods?

A
They release neutrons during fission reactions.
B
They undergo nuclear fission reactions.
C
They control the rate of reactions.
D
They directly convert water to steam.
5

The waste from which type of power plant produces the least amount of greenhouse gases?

A
a coal power plant
B
a gas power plant
C
a nuclear power plant
D
an oil power plant
6

Which statement describes the use of control rods?

A
Control rods are lowered into the reactor to slow down the reaction by absorbing neutrons.
B
Control rods are lowered into the reactor to speed up the reaction by releasing neutrons.
C
Control rods are raised out of the reactor to slow down the reaction by absorbing neutrons.
D
Control rods are raised out of the reactor to speed up the reaction by releasing neutrons.
7

What property of radioactive nuclear waste makes it so difficult to dispose of responsibly?

A
It is extremely volatile.
B
It has a very long half-life.
C
It is extremely corrosive.
D
It emits carbon dioxide.
8

Which statement about the waste materials from nuclear power plants is true?

A
The waste gives off bursts of radiation over a short time.
B
The waste produces small amounts of greenhouse gases for a long time.
C
The waste emits harmful radiation for a long time.
D
The waste generates a large amount of carbon dioxide over a short time.
9

Which statement is true?

A
Nuclear power plants require more fuel than conventional power plants.
B
There is a short supply of high quality uranium.
C
Nuclear power plants are inefficient.
D
It is difficult to responsibly dispose of nuclear waste products.
10

Which type of reaction occurs in the core of a nuclear reactor in a nuclear power plant?

A
Upper H upper C l plus upper N a upper O upper H right arrow upper H subscript 2 upper O plus upper n a upper C l.
Option A
B
Superscript 235 subscript 92 upper U plus superscript 1 subscript 0 n right arrow superscript 90 subscript 38 upper S r plus superscript 143 subscript 54 upper X e plus 3 superscript 1 subscript 0 n.
Option B
C
Superscript 90 subscript 38 upper S r plus superscript 143 subscript 54 upper X e plus 3 superscript 1 subscript 0 n right arrow superscript 235 subscript 92 upper U plus superscript 1 subscript 0 n.
Option C
D
Upper C subscript 10 upper h subscript 8 plus 12 upper O subscript 2 right arrow 10 upper C upper O subscript 2 plus 4 upper H subscript 2 upper O.
Option D
11

The following graph compares the greenhouse gas emissions from different forms of electricity production.Which conclusion is supported by the information in the graph?

Question illustration
A
Nuclear power releases less greenhouse gases than other forms of power.
B
Nuclear power releases an average amount of greenhouse gases.
C
Nuclear power releases no greenhouse gases.
D
Nuclear power releases more greenhouse gases than other forms of power.
12

A benefit of using nuclear energy could be the abundance of uranium in nature. Which human risk about mining is the most important to consider?

A
the use of a nonrenewable resource
B
the location of storage of the radioactive waste
C
the cost of setting up a uranium mine operation
D
the health hazards that are associated with uranium mining
13

Which component within a nuclear reactor directs neutron bombardment?

A
turbine
B
generator
C
control rod
D
chain reaction
14

The waste from which type of power plant produces the least amount of greenhouse gases?

A
a coal power plant
B
a gas power plant
C
a nuclear power plant
D
an oil power plant
15

What change of energy occurs between the steam generator and the turbine?

A
Chemical energy is converted into nuclear energy.
B
Nuclear energy is converted into thermal energy.
C
Thermal energy is converted into mechanical energy.
D
Mechanical energy is converted into electrical energy.
16

Which statement describes the use of control rods?

A
Control rods are lowered into the reactor to slow down the reaction by absorbing neutrons.
B
Control rods are lowered into the reactor to speed up the reaction by releasing neutrons.
C
Control rods are raised out of the reactor to slow down the reaction by absorbing neutrons.
D
Control rods are raised out of the reactor to speed up the reaction by releasing neutrons.
17

Which energy transformation occurs in the core of a nuclear reactor?

A
nuclear energy mechanical energy
Option A
B
nuclear energy thermal energy
Option B
C
thermal energy nuclear energy
Option C
D
mechanical energy nuclear energy
Option D
18

If each fission reaction in a nuclear reactor emits three neutrons, how many neutrons are produced from three fission reactions?

A
one
B
three
C
six
D
nine
19

Which type of reaction occurs in the core of a nuclear reactor in a nuclear power plant?

A
Upper H upper C l plus upper N a upper O upper H right arrow upper H subscript 2 upper O plus upper n a upper C l.
Option A
B
Superscript 235 subscript 92 upper U plus superscript 1 subscript 0 n right arrow superscript 90 subscript 38 upper S r plus superscript 143 subscript 54 upper X e plus 3 superscript 1 subscript 0 n.
Option B
C
Superscript 90 subscript 38 upper S r plus superscript 143 subscript 54 upper X e plus 3 superscript 1 subscript 0 n right arrow superscript 235 subscript 92 upper U plus superscript 1 subscript 0 n.
Option C
D
Upper C subscript 10 upper h subscript 8 plus 12 upper O subscript 2 right arrow 10 upper C upper O subscript 2 plus 4 upper H subscript 2 upper O.
Option D
20

Consider the following statistic.As of January 2009, the USA has produced 60,000 metric tons of nuclear waste in 60 years of operating 104 nuclear power plants.On average, how much waste is produced by each plant on a monthly basis?

A
0.8 tons per month
B
83.3 tons per month
C
104 tons per month
D
866.3 tons per month

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