ASNT INDUSTRIAL RADIOGRAPHY
RADIATION SAFETY VOCABULARY
EXAM 2026/2027 WITH 150 QUESTIONS
AND EXPERT-VERIFIED CORRECT
ANSWERS | ALREADY GRADED A+ |
GUARANTEED SUCCESS
A woman who has voluntarily informed the licensee, in writing, of her pregnancy
and the estimated date of conception. The declaration remains in effect until the
declared pregnant woman withdraws the declaration in writing or is no longer
pregnant. - CORRECT ANSWER-declared pregnant woman
Applies to external whole-body exposure such as exposure to industrial X-rays and
gamma rays. - CORRECT ANSWER-deep-dose equivalen
Those effects caused by radiation that do not become evident until years after
exposure to radiation. Some possible delayed effects of radiation are cancer and
genetic defects in offspring - CORRECT ANSWER-delayed effects
,The ability to develop into specialized cells. - CORRECT ANSWER-
differentiation
The transformation of radioactive atoms into a stable state resulting in energy
(radiation) and particle emission. - CORRECT ANSWER-disintegration
Intialism for deoxyribonucleic acid. DNA is the hereditary material in humans and
almost all other organisms. A nucleic acid that carries the genetic information in
the cell and is capable of self replication and synthesis of RNA. - CORRECT
ANSWER-DNA
The amount of radiation absorbed by an object or individual. Dose is a product of
intensity (dose rate) multiplied by time. - CORRECT ANSWER-dose
The product of the absorbed dose in tissue, quality factor and all other necessary
modifying factors at the location of interest .The units of dose equivalent are the
roentgen equivalent man (rem) and sievert - CORRECT ANSWER-dose
equivalent
Dose per unit of time. Usually measured in roentgen per hour (Rlh) or sievert per
hour (Sv/h). - CORRECT ANSWER-dose rate
A spiral wound steel cable that pushes the source out of or into a Category I
exposure device. - CORRECT ANSWER-drive cable
Radiation consisting of electric and magnetic waves that travel at the speed of
light. - CORRECT ANSWER-electromagnetic radiation
, An elementary particle with a negative electrical charge and a mass approximately
equal to 1/184th that of a proton. - CORRECT ANSWER-electron
Abbreviated eV, it is a unit of energy equal to the amount of kinetic energy gained
by an electron when it is accelerated through a voltage difference of 1 volt in a
vacuum. MeV equals 1 million electron volts. - CORRECT ANSWER-electron
volt
A basic type of matter. Each element has distinct chemical properties, and cannot
be divided into simpler substances by chemical means. - CORRECT ANSWER-
element
A container with a shield inside to hold a gamma radiography source. A means is
provided to take the source outside the shield or to remove part of the shield to
make radiographs. - CORRECT ANSWER-exposure device
The radiation dose or amount of radiation that has been absorbed by a substance.
Measured in rads (grays). - CORRECT ANSWER-absorbed dose
The process whereby the particles or photons in a beam of radiation are reduced in
number or energy
as they pass through a medium. - CORRECT ANSWER-absorption
The process of bombarding stable atoms with neutrons to make them radioactive. -
CORRECT ANSWER-activation
The activity of a radioisotope is the number of disintegrations that occur for a
given quantity of the radioisotope during a given length of time. Activity is
measured in curies (becquerel). - CORRECT ANSWER-activity
RADIATION SAFETY VOCABULARY
EXAM 2026/2027 WITH 150 QUESTIONS
AND EXPERT-VERIFIED CORRECT
ANSWERS | ALREADY GRADED A+ |
GUARANTEED SUCCESS
A woman who has voluntarily informed the licensee, in writing, of her pregnancy
and the estimated date of conception. The declaration remains in effect until the
declared pregnant woman withdraws the declaration in writing or is no longer
pregnant. - CORRECT ANSWER-declared pregnant woman
Applies to external whole-body exposure such as exposure to industrial X-rays and
gamma rays. - CORRECT ANSWER-deep-dose equivalen
Those effects caused by radiation that do not become evident until years after
exposure to radiation. Some possible delayed effects of radiation are cancer and
genetic defects in offspring - CORRECT ANSWER-delayed effects
,The ability to develop into specialized cells. - CORRECT ANSWER-
differentiation
The transformation of radioactive atoms into a stable state resulting in energy
(radiation) and particle emission. - CORRECT ANSWER-disintegration
Intialism for deoxyribonucleic acid. DNA is the hereditary material in humans and
almost all other organisms. A nucleic acid that carries the genetic information in
the cell and is capable of self replication and synthesis of RNA. - CORRECT
ANSWER-DNA
The amount of radiation absorbed by an object or individual. Dose is a product of
intensity (dose rate) multiplied by time. - CORRECT ANSWER-dose
The product of the absorbed dose in tissue, quality factor and all other necessary
modifying factors at the location of interest .The units of dose equivalent are the
roentgen equivalent man (rem) and sievert - CORRECT ANSWER-dose
equivalent
Dose per unit of time. Usually measured in roentgen per hour (Rlh) or sievert per
hour (Sv/h). - CORRECT ANSWER-dose rate
A spiral wound steel cable that pushes the source out of or into a Category I
exposure device. - CORRECT ANSWER-drive cable
Radiation consisting of electric and magnetic waves that travel at the speed of
light. - CORRECT ANSWER-electromagnetic radiation
, An elementary particle with a negative electrical charge and a mass approximately
equal to 1/184th that of a proton. - CORRECT ANSWER-electron
Abbreviated eV, it is a unit of energy equal to the amount of kinetic energy gained
by an electron when it is accelerated through a voltage difference of 1 volt in a
vacuum. MeV equals 1 million electron volts. - CORRECT ANSWER-electron
volt
A basic type of matter. Each element has distinct chemical properties, and cannot
be divided into simpler substances by chemical means. - CORRECT ANSWER-
element
A container with a shield inside to hold a gamma radiography source. A means is
provided to take the source outside the shield or to remove part of the shield to
make radiographs. - CORRECT ANSWER-exposure device
The radiation dose or amount of radiation that has been absorbed by a substance.
Measured in rads (grays). - CORRECT ANSWER-absorbed dose
The process whereby the particles or photons in a beam of radiation are reduced in
number or energy
as they pass through a medium. - CORRECT ANSWER-absorption
The process of bombarding stable atoms with neutrons to make them radioactive. -
CORRECT ANSWER-activation
The activity of a radioisotope is the number of disintegrations that occur for a
given quantity of the radioisotope during a given length of time. Activity is
measured in curies (becquerel). - CORRECT ANSWER-activity
