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The "ALARA" concept stands for:
a) Always Lower All Radiation Amounts
b) As Low As Reasonably Achievable
c) As Little As Radiologists Allow
d) All Levels Are Radiation Avoidance
b) As Low As Reasonably Achievable
Which material fluoresced, leading to the discovery of X-rays?
a) Barium platinocyanide
b) Calcium tungstate
c) Silver halide
d) Cesium iodide
a) Barium platinocyanide
Which subatomic particle is the primary component of the "Outer Part" of an atom?
a) Proton
b) Neutron
c) Electron
d) Nucleus
c) Electron
Which organization is considered the international authority on safe ionizing radiation use?
a) NRC
b) ICRP
c) OSHA
d) FDA
b) ICRP
What is the greatest contributor to terrestrial background radiation?
a) Potassium-40
b) Uranium-238
c) Radon-222
d) Radium-226
d) Radium-226
On what date were X-rays discovered?
a) February 3, 1896
b) November 8, 1895
c) December 28, 1895
d) August 1, 1974
b) November 8, 1895
Who is considered the "first radiation fatality" in the United States?
a) Wilhelm Roentgen
b) Marie Curie
c) Clarence Dally
d) Edward Jerman
c) Clarence Dally
What is the speed of light in a vacuum?
a) 186,400 miles per second
b) 300,000 miles per hour
c) 1,000 feet per second
d) It varies depending on the energy of the X-ray
a) 186,400 miles per second
Which US agency regulates the design and manufacture of electronic products like X-ray machines?
a) NRC
b) EPA
c) FDA
d) OSHA
c) FDA
Which type of rock typically contains the highest concentration of radioactivity?
a) Limestone
b) Sandstone
c) Igneous
d) Sedimentary
c) Igneous
Who is credited with the discovery of X-rays?
a) Thomas Edison
b) Clarence Dally
c) Wilhelm Conrad Roentgen
d) Henri Becquerel
c) Wilhelm Conrad Roentgen
The term "Radioactivity" was coined by:
a) Wilhelm Roentgen
b) Marie Curie
c) Albert Einstein
d) Enrico Fermi
b) Marie Curie
Which of the following is a form of non-ionizing radiation?
a) Alpha particles
b) Gamma rays
c) Microwaves
d) X-rays
c) Microwaves
What was the first established "safe dose" in 1902 meant to prevent?
a) Leukemia
b) Erythema (skin reddening)
c) Hair loss
d) Anemia
b) Erythema (skin reddening)
Which isotope is found in bananas and is a source of natural radioactivity?
a) Radium-226
b) Potassium-40
c) Uranium-235
d) Carbon-14
b) Potassium-40
What type of tube was being used when X-rays were discovered?
a) Coolidge tube
b) Crookes "cold cathode" tube
c) Fluorescent tube
d) Vacuum-sealed anode tube
b) Crookes "cold cathode" tube
What is an "Agreement State"?
a) A state that agrees with all federal laws
b) A state that has assumed authority from the NRC to regulate radiation
c) A state that does not use X-ray technology
d) A state that provides free radiation monitoring
b) A state that has assumed authority from the NRC to regulate radiation
Who is known as the "Father of Radiography"?
a) Wilhelm Roentgen
b) Ed C. Jerman
c) Thomas Edison
d) Arthur Goodspeed
b) Ed C. Jerman
The atomic bomb "Little Boy" was dropped on which city?
a) Nagasaki
b) Hiroshima
c) Tokyo
d) Chernobyl
b) Hiroshima
What is the charge of an X-ray photon?
a) Positive
b) Negative
c) No charge
d) Neutral until it hits matter
c) No charge
What is the definition of "Radiation Protection"?
a) The use of lead shielding only
b) Effective measures to safeguard patients, personnel, and the public from unnecessary ionizing radiation
c) The complete elimination of all radiation sources in a hospital
d) A voluntary set of rules that radiographers can choose to follow
b) Effective measures to safeguard patients, personnel, and the public from unnecessary ionizing radiation
In what year was the first medical X-ray performed?
a) 1890
b) 1896
c) 1895
d) 1901
b) 1896
Which of the following is NOT a characteristic of X-rays?
a) Can be focused by a lens
b) Highly penetrating
c) Travel in straight lines
d) Electrically neutral
a) Can be focused by a lens
Which organization maintains high standards of education for Radiologic Technologists?
a) JRCERT
b) ARRT
c) EPA
d) NCRP
a) JRCERT
Radiation that has enough energy to dislodge orbital electrons is called:
a) Thermal radiation
b) Non-ionizing radiation
c) Ionizing radiation
d) Radio waves
c) Ionizing radiation