Question 1

The largest component of ionizing radiation the average American receives is from:

Accepted Answer

A)  radon 
B)  cosmic rays 
C)  TV 
D)  medical x-rays 
E)  terrestrial sources 
A)  radon 
B)  cosmic rays 
C)  TV 
D)  medical x-rays 
E)  terrestrial sources A

Question 2

In the following fission reaction, the atomic number and mass of nucleus Y are:

Accepted Answer

A)  37,100 
B)  37,102 
C)  38,102 
D)  39,99 
E)  39,100 
A)  37,100 
B)  37,102 
C)  38,102 
D)  39,99 
E)  39,100 D

Question 3

The Emergency Core Cooling System is used in the event of an accident to ________.

Accepted Answer

A)  stop the fission reactions 
B)  reduce fuel rod temperatures 
C)  provide backup power to control rods 
D)  change the decay heat of the fuel pellets 
A)  stop the fission reactions 
B)  reduce fuel rod temperatures 
C)  provide backup power to control rods 
D)  change the decay heat of the fuel pellets B

Question 4

The majority of the radiation emitted to the general public in the normal operation of a nuclear plant comes from the ________.

Accepted Answer

A)  cooling water discharged to a lake or a river. 
B)  reactor core directly. 
C)  spent fuel rods stored on site. 
D)  fission fragment gases vented to the atmosphere. 
E)  low level wastes shipped from the plant 
A)  cooling water discharged to a lake or a river. 
B)  reactor core directly. 
C)  spent fuel rods stored on site. 
D)  fission fragment gases vented to the atmosphere. 
E)  low level wastes shipped from the plant

Question 5

The best way to reduce your radiation dose from a Co-60 gamma emitting source is to _______.

Accepted Answer

A)  reduce the temperature of the source 
B)  move twice as far away 
C)  spend half the time near the source 
D)  double the thickness of wood between you and the source 
E)  nonsense! You cannot change the potential dose 
A)  reduce the temperature of the source 
B)  move twice as far away 
C)  spend half the time near the source 
D)  double the thickness of wood between you and the source 
E)  nonsense! You cannot change the potential dose

Question 6

For the same energy, the most penetrating type of radiations in human tissue are ________.

Accepted Answer

A)  alpha particles 
B)  beta particles 
C)  gamma rays 
A)  alpha particles 
B)  beta particles 
C)  gamma rays

Question 7

The future disposal of high level radioactive waste will probably be done in the US in ________.

Accepted Answer

A)  volcanic rock 
B)  deep seabed sediments 
C)  transmutation processes 
D)  concrete building, as proposed for West Valley, NY 
E)  containers at present nuclear power plant sites 
A)  volcanic rock 
B)  deep seabed sediments 
C)  transmutation processes 
D)  concrete building, as proposed for West Valley, NY 
E)  containers at present nuclear power plant sites

Question 8

The reason a nuclear reactor will not explode like a bomb is because ________.

Accepted Answer

A)  the uranium-235 enrichment is too low. 
B)  there is not enough uranium-238 present. 
C)  the cooling water will always take away the heat 
D)  there are control rods present 
E)  …nonsense! It can explode like a bomb in the event of a loss of coolant accident 
A)  the uranium-235 enrichment is too low. 
B)  there is not enough uranium-238 present. 
C)  the cooling water will always take away the heat 
D)  there are control rods present 
E)  …nonsense! It can explode like a bomb in the event of a loss of coolant accident

Question 9

Exceedingly high temperatures are needed in a fusion reactor because _______.

Accepted Answer

A)  electrostatic barriers must be overcome 
B)  the fuel must be ionized 
C)  combustion needs heat to occur 
D)  water must be boiled and pressurized. 
A)  electrostatic barriers must be overcome 
B)  the fuel must be ionized 
C)  combustion needs heat to occur 
D)  water must be boiled and pressurized.

Question 10

The average radiation dose received from radon in the home is ________.

Accepted Answer

A)  less than a dental x-ray dose. 
B)  comparable to that from a nuclear plant 
C)  very dependent upon local geology 
D)  larger in older homes 
A)  less than a dental x-ray dose. 
B)  comparable to that from a nuclear plant 
C)  very dependent upon local geology 
D)  larger in older homes

Question 11

Fission and fusion reactions have in common _______.

Accepted Answer

A)  absorption of energy in the nuclear reaction 
B)  high temperature requirements 
C)  liberation of neutrons 
D)  loss of mass of products over reactants 
E)  gain in mass of products over reactants. 
A)  absorption of energy in the nuclear reaction 
B)  high temperature requirements 
C)  liberation of neutrons 
D)  loss of mass of products over reactants 
E)  gain in mass of products over reactants.

Question 12

If a light-weight stable nucleus has 12 neutrons, the atomic mass is expected to be about:

Accepted Answer

A) 6 
B) 12 
C) 18 
D) 24 
E) 36 amu. 
A) 6 
B) 12 
C) 18 
D) 24 
E) 36 amu.

Question 13

The two purposes of water in a reactor core are ______.

Accepted Answer

A)  neutron absorber and heat transfer liquid 
B)  neutron moderator and heat transfer liquid 
C)  neutron moderator and neutron absorber 
D)  neutron absorber and lubricant 
E)  neutron moderator and radiation shield 
A)  neutron absorber and heat transfer liquid 
B)  neutron moderator and heat transfer liquid 
C)  neutron moderator and neutron absorber 
D)  neutron absorber and lubricant 
E)  neutron moderator and radiation shield

The largest component of ionizing radiation the average American receives is from:

In the following fission reaction, the atomic number and mass of nucleus Y are:

The Emergency Core Cooling System is used in the event of an accident to ________.

The majority of the radiation emitted to the general public in the normal operation of a nuclear plant comes from the ________.

The best way to reduce your radiation dose from a Co-60 gamma emitting source is to _______.

For the same energy, the most penetrating type of radiations in human tissue are ________.

The future disposal of high level radioactive waste will probably be done in the US in ________.

The reason a nuclear reactor will not explode like a bomb is because ________.

Exceedingly high temperatures are needed in a fusion reactor because _______.

The average radiation dose received from radon in the home is ________.

Fission and fusion reactions have in common _______.

If a light-weight stable nucleus has 12 neutrons, the atomic mass is expected to be about:

The two purposes of water in a reactor core are ______.

Introduction

Energy Mechanics

Heat

Solar Energy

Air Pollution, Global Warming, and Fossil Fuels

Electricity

Biomass

Filters

Exam 7: Nuclear

The largest component of ionizing radiation the average American receives is from:

In the following fission reaction, the atomic number and mass of nucleus Y are:

The Emergency Core Cooling System is used in the event of an accident to ________.

The majority of the radiation emitted to the general public in the normal operation of a nuclear plant comes from the ________.

The best way to reduce your radiation dose from a Co-60 gamma emitting source is to _______.

For the same energy, the most penetrating type of radiations in human tissue are ________.

The future disposal of high level radioactive waste will probably be done in the US in ________.

The reason a nuclear reactor will not explode like a bomb is because ________.

Exceedingly high temperatures are needed in a fusion reactor because _______.

The average radiation dose received from radon in the home is ________.

Fission and fusion reactions have in common _______.

If a light-weight stable nucleus has 12 neutrons, the atomic mass is expected to be about:

The two purposes of water in a reactor core are ______.

Introduction

Energy Mechanics

Heat

Solar Energy

Air Pollution, Global Warming, and Fossil Fuels

Electricity

Biomass

Filters