Upgrade to remove ads
Terms in this set (88)
Protons are converted to neutrons during:
The only naturally occurring fuel for the nuclear industry is:
a) U-238 c) Pu-239
b) Pu-240 d) U-235
Which isotope has the shortest half-life?
a) Pu-239 c) U-235
b) U-233 d) U-236
Purified uranium ore is__________ in color.
A deuterium - tritium fusion reaction produces a neutron plus"
A critical mass is determined using a ____________shape.
The enrichment of uranium is based on all of the following instrument except:
The uranium and plutonium are chemically removed from the high-level solution by:
an ion exchange column
Why is uranium converted to uranium hexafluoride for the enrichment process?
It can be converted to a gas
A material placed in the reactor core to adjust the speed of the neutrons is referred to as a:
235U92 has how many neutrons?
Which of the following has the heaviest nucleons?
The heavier the average of a nucleon,
the less stable the isotope
If 100 grams of an isotope has a half-life of five years, how much of that isotope would
remain after 10 years?
Which isotope is most stable?
Worldwide what is the most common nuclear reactor?
Which of the following is not a uranium ore?
Which of the following elements is least soluble in water?
The fewest nuclear reactors are located in the:
Which nuclear process does uranium follow?
He-3 + n → ?
Which of the following elements is not involved in regulating the rate of a nuclear
A nuclear chain reaction is dependent on ___________ isotopes.
What type of nuclear decay would apply to isotopes too large to be stable?
Plutonium-239 is prepared from:
a) thorium-232 c) uranium-238
b) uranium-235 d) sodium-11
The mass (weight) of a nucleon in iron (Fe #26) is _________ a nucleon in helium
is oxygen 26 on the belt of stability
If an isotope has to FEW neutrons to be stable, it is likely to decay by
When a positron strikes an electron, what is produced
two gamma rays
The only naturally occurring fuel for the nuclear industry is
The 238 in uranium-238 indicates that the isotope has 238
Which of the following isotopes is most stable?
A helium nucleus is _____ than the sum of the masses of two neutrons and two protons
In the heavy element region (atomic number 60 to 80), the stable elements have
a)more neutrons than protons
b)more electrons than protons
c)more protons than neutrons
d)more positrons than electrons
more neutrons than protons
In a nuclear explosion, the energy released is equal to
O-18 would most likely decay by
It is theorized that the heavier elements found on earth were formed by
What process is most likely for an atom which is too large to be stable
When an isotope has too many neutrons to be stable, it decays by
The energy releasing process occuring in the sun is
thermal nuclear fusion
What happens when a positron strikes an electron
they are converted to energy
Deuterium is an isotope of
U-184 would most likely decay by
The shorter the half-life of an isotope, the _________ its radioactivity
All high level wastes produced by nuclear power plants over the last ten years is being stored
at the power plant where they were used
When the control rods are fully inserted into the reactor
the fission reaction stops
present plans call for high-level waste to be disposed by
burying in Yucca mountain
Which of the following is NOT a fissile isotope
d) plutonium 241
the atomic bomb is an example of nuclear
Which type of nuclear reactor is least common in the united states
a)boiling water reactor
b)pressurized water reactor
c)high temp gas reactor
high temp gas reactor
The breeder reactor is used to
convert fertile fuel to fissile fuel
control rods contain which of the following elements
The first enrichment process was
a 'fuel assembly' is
a group of uranium filled tubes packed together
Which uranium isotope occurs in the greatest abundance
if the number of productive neutrons in a nuclear reaction is more than one, the chain reaction is classified as
if one had 50 pounds of radioacitve isotope with a half life of five years how much would be left after ten years
after ten years approximately _________of the original radioactivity of high level nuclear wastes has dissipated
most nuclear power plant are located in the __________ united states
if the number of productive neutrons in a nuclear reaction is less than one, the chain reaction is classified as
uranium enrichment by the gaseous diffusion technique depends upon the somewhat high mobility (or velocity) of
plutonium-239 is produced from
Since nuclear power plants operate at a lower temperature than do fossil fuel power plants, they are
less efficient than fossil fuel plants
Does the reactor water of a boiling water reactor come in contact with the turbine
a nuclear reactor resembles a large
the coolant used in US nuclear reactors is
nuclear fusion occurs when
small nuclei are combined to form large nuclei
the splitting of a large nucleus into two small, more stable, nuclei is referred to as
the fuel used in a conventional nuclear reactor is
Natural uranium contains two isotopes
a conventional nuclear reactor is regulated by
used fuel rods are now stored in a tank of water saturated with
what differentiates a breeder reactor from a conventional nuclear reactor
it produces more fissile fuel than it consumes
in a breeder reactor
u-238 is converted to Pu-239
the detonation of uranium atomic bomb requires
the combining of two or more super critical masses
In a conventional nuclear reactor what is the moderator
a critical mass is
the minimum mass necessary to sustain a chain reaction
plutonium can be destroyed by
a fission reaction
the combination of small nuclei to form larger, more stable nuclei is referred to as
thermal nuclear fusion
the heat source for the hydrogen bomb is
an atomic bomb
which of the following proposed reactors utilizes static confinement
a) the bumpy torus
c) the theta pinch
d) the laser reactor
the laser reactor
which of the following conditions is not required for a fusion reaction
a critical mass
in the nuclear fusion process a high temp is necessary to
overcome nuclear repulsion
a tokamak is
a type of fusion reactor
a fusion reaction occurs in
a hydrogen bomb
in the tokamak reactor the fuel is heated by
a magnetic field
in laser fusion the laser is used to
detonate the fuel pellet
which of the following fusion reactors, at present, appears to hold the greatest promise as a future energy source
This set is often in folders with...
Chem Chapter 5
Last year's exam
You might also like...
Chapter 10 Nuclear Chemistry
Chapter 10 Nuclear Chemistry
Chapter 10 Review
Chemistry Test 3 (Ch17)
Other sets by this creator
Geology Exam 3