ASNT IRRSP TEST |QUESTIONS AND VERIFIED ANSWERS|GRADED
A+|PASS ON FIRST ATTEMPT|BRAND NEW 2026/2027 UPDATE!!!!!
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 - ANSWER D
10 CFR Part 34 requires that an industrial radiographer:
A: complete 40 hours of formal training in radiation safety each year
B: have at least 960 hours of on-the-job training
C: be certified by a certifying entity
D: have at least one month on-the-job training - ANSWER C
When the source is in a source storage or shipping container, the container shall have no ra-
diation levels in excess of:
A: 200 mR/hr at contact with any exterior and 10 mR/hr at a meter from any exterior surface
B: 50 mR/hr at 6" from any exterior surface of the device
C: 50 mR/hr at contact with any exterior and 10 mR/hr at a meter from any exterior surface
D: 200 mR/hr at contact with any exterior surface and 50 mR/hr at 6" from any exterior sur-
face - ANSWER A
The process of surveying the circumference of an exposure device and along the guide tube
is required:
A: whenever the device is first approached in storage
B: in order to complete the utilization log
C: in order to determine whether or not the source is fully retracted
1
,D: but the exposure device requires a survey of all six sides - ANSWER C
The biological effect resulting from exposure to gamma radiation would be greatest from:
A: a single total effective dose equivalent of 150 to 200 R
B: six total effective dose equivalent events, each of 30 to 50 R, over a period of 5 years
C: low level, total effective dose equivalent events over a prolonged period of time
D: a single 450 R shallow-dose equivalent exposure to the extremities - ANSWER A
Other than date and location of use, which of the following is information required in a utili-
zation 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 - ANSWER A
Which of the following are required to be worn by radiographers and assistants in field radi-
ography?
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 - ANSWER 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 - ANSWER B
2
, 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 - ANSWER C
What is accelerated toward a high atomic number target in order to produce X-rays?
A: Electrons
B: Neutrons
C: Protons
D: Nuclei - ANSWER A
When exposure devices containing radioactive material are stored overnight in a mobile la-
boratory 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" - ANSWER B
What percentage of a source's initial activity remains after 6 half-lives?
A: 16.70%
B: 6.70%
C: 3.10%
D: 1.60% - ANSWER D
3
A+|PASS ON FIRST ATTEMPT|BRAND NEW 2026/2027 UPDATE!!!!!
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 - ANSWER D
10 CFR Part 34 requires that an industrial radiographer:
A: complete 40 hours of formal training in radiation safety each year
B: have at least 960 hours of on-the-job training
C: be certified by a certifying entity
D: have at least one month on-the-job training - ANSWER C
When the source is in a source storage or shipping container, the container shall have no ra-
diation levels in excess of:
A: 200 mR/hr at contact with any exterior and 10 mR/hr at a meter from any exterior surface
B: 50 mR/hr at 6" from any exterior surface of the device
C: 50 mR/hr at contact with any exterior and 10 mR/hr at a meter from any exterior surface
D: 200 mR/hr at contact with any exterior surface and 50 mR/hr at 6" from any exterior sur-
face - ANSWER A
The process of surveying the circumference of an exposure device and along the guide tube
is required:
A: whenever the device is first approached in storage
B: in order to complete the utilization log
C: in order to determine whether or not the source is fully retracted
1
,D: but the exposure device requires a survey of all six sides - ANSWER C
The biological effect resulting from exposure to gamma radiation would be greatest from:
A: a single total effective dose equivalent of 150 to 200 R
B: six total effective dose equivalent events, each of 30 to 50 R, over a period of 5 years
C: low level, total effective dose equivalent events over a prolonged period of time
D: a single 450 R shallow-dose equivalent exposure to the extremities - ANSWER A
Other than date and location of use, which of the following is information required in a utili-
zation 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 - ANSWER A
Which of the following are required to be worn by radiographers and assistants in field radi-
ography?
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 - ANSWER 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 - ANSWER B
2
, 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 - ANSWER C
What is accelerated toward a high atomic number target in order to produce X-rays?
A: Electrons
B: Neutrons
C: Protons
D: Nuclei - ANSWER A
When exposure devices containing radioactive material are stored overnight in a mobile la-
boratory 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" - ANSWER B
What percentage of a source's initial activity remains after 6 half-lives?
A: 16.70%
B: 6.70%
C: 3.10%
D: 1.60% - ANSWER D
3
