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answers)/ Industrial Radiography Radiation Safety
Personnel IRRSP EXAM latest 2025 (brand new!)
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100 Actual Exam-Style Questions with Correct Answers
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Covers radiation physics, radiation protection, safety regulations, and industrial
radiography procedures
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Most personnel overexposures could be prevented by performing a radiation survey:
A: at the restricted area perimeter
B: before a radiographic exposure
C: before shipping or transporting the exposure device
D: after a radiographic exposure
D
A radiographer discovers the dosimeter being worn is off-scale. Which of the following action is
appropriate?
A: radiographic work should be halted until the dosimeter is recharged
B: Re-zero the dosimeter and notify the RSO prior to resumption of radiographic operations
C: obtain another dosimeter and return to work
D: the radiographer's film badge/TLD should be sent for immediate processing before returning to
work in a radiation area
D
, Other than date and location of use, which of the following is information required in a utilization
log?
A: Name of radiographer, make, model and serial number of exposure device
B: Name of radiographer, serial number of the survey meter
C: serial number of the sealed source, serial number of survey meter
D: Make, model, and serial number of exposure device, and distance to restricted area boundary
A
Which of the following are required to be worn by radiographers and assistants in field radiography?
A: film badge, pocket dosimeter, alarm rate meter
B: film badge, pocket dosimeter, TLD, survey meter
C: pocket dosimeter, alarming rate meter, survey meter
D: Film badge, pocket dosimeter, TLD
A
An advantage of the fountain-pen type of ionization chamber (pocket dosimeter) is that it:
A: provides a permanent record of accumulative dose
B: provides an immediate indication of dosage
C: is the most sensitive indication of dosage
D: works independently of the survey meter
B
The standard dose rate emission (Gamma Ray Constant) from a radioisotope is commonly expressed
as:
A: roentgens per hour per curie
B: roentgens per hour per curie per foot or per meter
C: roentgens per hour per curie at one foot
D: roentgens per second per curie
C
What is accelerated toward a high atomic number target in order to produce X-rays?
A: Electrons
B: Neutrons
C: Protons
D: Nuclei
A
When exposure devices containing radioactive material are stored overnight in a mobile laboratory
at a job site, the mobile laboratory must have signs bearing the radiation symbol and the words:
A: "CAUTION, RADIATION AREA" or "DANGER, RADIATION AREA"
B: "CAUTION, RADIOACTIVE MATERIAL" or "DANGER, RADIOACTIVE MATERIAL"
C: "CAUTION, RADIOACTIVE STORAGE AREA" or "DANGER, RADIOACTIVE STORAGE AREA"
D: "DANGER, HAZARDOUS RADIOACTIVE MATERIAL STORAGE AREA"
B
What percentage of a source's initial activity remains after 6 half-lives?
A: 16.70%