ASNT Industrial Radiography Radiation Safety Questions
with all Correct & 100% Verified Answers |Latest Version
|Already Graded A+
In the early years of radiography, what caused personnel to be overexposed? ✔Correct
Answer-Poor equipment design, lack of understanding, lack of and poor safety practices.
In what year did Marie Curie discover radium? ✔Correct Answer-Late 1898
Who coined the term radioactivity? ✔Correct Answer-Marie and Pierre Curie
In the early years of radiography from 1920-1930, the maximum thickness that could be
inspected via
X-radiation was of steel? ✔Correct Answer-3" (7.62 cm)
Historically, it has been proven that the predominant cause of overexposures is: ✔Correct
Answer-Improper surveys, the source being left in an uncontrolled state, the source not being
locked once retracted to the shielded position
The responsibility to adhere to the regulations, license conditions and company policies falls to:
✔Correct Answer-The radiographer
Alpha particles were discovered by: ✔Correct Answer-Henri Becquerel
The first medical X-ray was conducted at: ✔Correct Answer-Massachusetts General
Regulations from one state to the next are essentially the me for radioactive materials
✔Correct Answer-True
A radiographer has several avenues to seek guidance and counsel. The first person he or she can
turn to is? ✔Correct Answer-their program's radiation safety officer (RSO)
The origins of industrial radiography can be attributed to: ✔Correct Answer-Wilhelm Rontgen
The two basic types of radiation are: ✔Correct Answer-particulate and electromagnetic
Wavelike radiation travels at: ✔Correct Answer-at the speed of light without regard to
pressure, temperature or magnetic fields
Gamma rays travel in a wavelike motion at the speed of
light, which is: ✔Correct Answer-186 000 miles/s (299 338 km/s)
, Matter can be turned into energy. ✔Correct Answer-True
Alpha particles are much like a helium nucleus as they have: ✔Correct Answer-two protons,
two neutrons and two electrons
Beta particles have a/an: ✔Correct Answer-Negative charge
Alpha particles have a/an: ✔Correct Answer-Positive charge
Beta particles have a mass: ✔Correct Answer-much less than that of an alpha particle
In modern radiography the alpha and beta particles are of little concern because: ✔Correct
Answer-They travel at sub-light speeds and as such are easily ontained or shielded
X-radiation is created by applying a: ✔Correct Answer-high voltage direct current across the
cathode of a vacuum tube
X-rays are produced by an X-ray tube by the: ✔Correct Answer-passage of electrons across the
tube striking the
target
Radio waves, microwaves and infrared waves are types of: ✔Correct Answer-Nonionizing
radiation
The neutron has an atomic mass of: ✔Correct Answer-1 AMU ·
The shorter the wavelength or higher the frequency, the greater the penetration; as such:
✔Correct Answer-primary beams have greater penetrability than secondary beams
Elementary particles with a unit negative electrical charge and a mass approximately equal to
1/1840 that of ✔Correct Answer-Electrons
The atomic weight of an atom is the combination of the total number of protons and neutrons
held in the nucleus. This is also known as the: ✔Correct Answer-"A" number
Gamma rays are affected by magnetic fields. ✔Correct Answer-False
As a radioisotope decays, the elements return to a stab' state by undergoing several steps; once
complete the material continues to produce radiation: ✔Correct Answer-false
After 148 days, Ir-192 would have undergone how m half lives? ✔Correct Answer-2
Activation is the process of bombarding material with: ✔Correct Answer-excess neutrons
with all Correct & 100% Verified Answers |Latest Version
|Already Graded A+
In the early years of radiography, what caused personnel to be overexposed? ✔Correct
Answer-Poor equipment design, lack of understanding, lack of and poor safety practices.
In what year did Marie Curie discover radium? ✔Correct Answer-Late 1898
Who coined the term radioactivity? ✔Correct Answer-Marie and Pierre Curie
In the early years of radiography from 1920-1930, the maximum thickness that could be
inspected via
X-radiation was of steel? ✔Correct Answer-3" (7.62 cm)
Historically, it has been proven that the predominant cause of overexposures is: ✔Correct
Answer-Improper surveys, the source being left in an uncontrolled state, the source not being
locked once retracted to the shielded position
The responsibility to adhere to the regulations, license conditions and company policies falls to:
✔Correct Answer-The radiographer
Alpha particles were discovered by: ✔Correct Answer-Henri Becquerel
The first medical X-ray was conducted at: ✔Correct Answer-Massachusetts General
Regulations from one state to the next are essentially the me for radioactive materials
✔Correct Answer-True
A radiographer has several avenues to seek guidance and counsel. The first person he or she can
turn to is? ✔Correct Answer-their program's radiation safety officer (RSO)
The origins of industrial radiography can be attributed to: ✔Correct Answer-Wilhelm Rontgen
The two basic types of radiation are: ✔Correct Answer-particulate and electromagnetic
Wavelike radiation travels at: ✔Correct Answer-at the speed of light without regard to
pressure, temperature or magnetic fields
Gamma rays travel in a wavelike motion at the speed of
light, which is: ✔Correct Answer-186 000 miles/s (299 338 km/s)
, Matter can be turned into energy. ✔Correct Answer-True
Alpha particles are much like a helium nucleus as they have: ✔Correct Answer-two protons,
two neutrons and two electrons
Beta particles have a/an: ✔Correct Answer-Negative charge
Alpha particles have a/an: ✔Correct Answer-Positive charge
Beta particles have a mass: ✔Correct Answer-much less than that of an alpha particle
In modern radiography the alpha and beta particles are of little concern because: ✔Correct
Answer-They travel at sub-light speeds and as such are easily ontained or shielded
X-radiation is created by applying a: ✔Correct Answer-high voltage direct current across the
cathode of a vacuum tube
X-rays are produced by an X-ray tube by the: ✔Correct Answer-passage of electrons across the
tube striking the
target
Radio waves, microwaves and infrared waves are types of: ✔Correct Answer-Nonionizing
radiation
The neutron has an atomic mass of: ✔Correct Answer-1 AMU ·
The shorter the wavelength or higher the frequency, the greater the penetration; as such:
✔Correct Answer-primary beams have greater penetrability than secondary beams
Elementary particles with a unit negative electrical charge and a mass approximately equal to
1/1840 that of ✔Correct Answer-Electrons
The atomic weight of an atom is the combination of the total number of protons and neutrons
held in the nucleus. This is also known as the: ✔Correct Answer-"A" number
Gamma rays are affected by magnetic fields. ✔Correct Answer-False
As a radioisotope decays, the elements return to a stab' state by undergoing several steps; once
complete the material continues to produce radiation: ✔Correct Answer-false
After 148 days, Ir-192 would have undergone how m half lives? ✔Correct Answer-2
Activation is the process of bombarding material with: ✔Correct Answer-excess neutrons
