1|Page
IRRSP Certification test 2025 bundle with 500
questions and correct verified answers/ Industrial
Radiography Radiation Safety Personnel IRRSP
EXAM latest 2025 (brand new!)
Specific emission Constant for Co60 is? -
...ANSWER...✓✓14R/Hr/ci @ 1ft
Specific emission Constant for Ir192 is? -
...ANSWER...✓✓5.2 R/Hr/ci @ 1ft
What is the Half Life for Ir192? - ...ANSWER...✓✓74 days
What is the Half life for co60 ? - ...ANSWER...✓✓5.3 years
In the beginning of Radiography, Wilhelm Conrad Rontgen
scientist won the Nobel prize and how did he get to do
this ? - ...ANSWER...✓✓
in 1896 while investigating phosphorescence in uranium
salts, he accidentally discovered radioactivity . as he was
investigating the work of Mr rontgen , Becquerel wrapped
,2|Page
a fluorescent substance , potassium -
...ANSWER...✓✓Henri Becquerel 1852-1908
gamma radiography got its start in the united states in
1929 at a naval research laboratory. the navy wanted a
method to inspect think steel casting , but x ray available
at the time were limited to 3 in"
using radium it was possible to inspaect thhinknesse in
the range of 10" in to12" in these radiographs were
achieved by a method called fishpoling -
...ANSWER...✓✓Early Gamma Radiography
fishpoling required a radiographer to hold a weak radium
source to a long rod for the time length of the exposure,
or to prop the fishpole through a rig to hold it steady. -
...ANSWER...✓✓Fishpoling
manufactured gamma-ray sources and cobalt become
available in what year ? - ...ANSWER...✓✓1946 .
Ernest Rutherford - ...ANSWER...✓✓Alpha particles were
discovered by
?
,3|Page
poor equipment design,
lack of understanding,
lack of poor safety practices. - ...ANSWER...✓✓in the early
years of radiography, what caused personnel to be
overexposed?
late in 1898. - ...ANSWER...✓✓in what year did Marie Curie
discover radium?
Marie and Pierre Curie - ...ANSWER...✓✓Who coined the
term radioactivity?
3" in. (7.62 cm) - ...ANSWER...✓✓In the early years of
radiography from 1920-1930, the maximum thickness that
could be inspected via X-radiation was__________ of steel?
-improper surveys
-the source being left in an uncontrolled state
-the source not being locked once retracted to the
shielded position - ...ANSWER...✓✓Historically, it has been
proven that the predominant cause of overexposures is?
, 4|Page
the responsibility to adhere to the regulations, license
conditions and company policies falls to -
...ANSWER...✓✓the radiographer
Ernest Rutherford - ...ANSWER...✓✓Alpha particles were
discovered by?
Massachusetts General - ...ANSWER...✓✓The first medical
X ray was conducted at?
true - ...ANSWER...✓✓Regulations from one state to the
next are essentially the same for Radioactive materials
(RSO) Their program's radiation safety officer -
...ANSWER...✓✓A radiographer has several avenues to
seek guidance and counsel. The first person he or she can
turn to is?
Wilhelm Röntgen - ...ANSWER...✓✓the origins of industrial
radiography can be attributed to?
IRRSP Certification test 2025 bundle with 500
questions and correct verified answers/ Industrial
Radiography Radiation Safety Personnel IRRSP
EXAM latest 2025 (brand new!)
Specific emission Constant for Co60 is? -
...ANSWER...✓✓14R/Hr/ci @ 1ft
Specific emission Constant for Ir192 is? -
...ANSWER...✓✓5.2 R/Hr/ci @ 1ft
What is the Half Life for Ir192? - ...ANSWER...✓✓74 days
What is the Half life for co60 ? - ...ANSWER...✓✓5.3 years
In the beginning of Radiography, Wilhelm Conrad Rontgen
scientist won the Nobel prize and how did he get to do
this ? - ...ANSWER...✓✓
in 1896 while investigating phosphorescence in uranium
salts, he accidentally discovered radioactivity . as he was
investigating the work of Mr rontgen , Becquerel wrapped
,2|Page
a fluorescent substance , potassium -
...ANSWER...✓✓Henri Becquerel 1852-1908
gamma radiography got its start in the united states in
1929 at a naval research laboratory. the navy wanted a
method to inspect think steel casting , but x ray available
at the time were limited to 3 in"
using radium it was possible to inspaect thhinknesse in
the range of 10" in to12" in these radiographs were
achieved by a method called fishpoling -
...ANSWER...✓✓Early Gamma Radiography
fishpoling required a radiographer to hold a weak radium
source to a long rod for the time length of the exposure,
or to prop the fishpole through a rig to hold it steady. -
...ANSWER...✓✓Fishpoling
manufactured gamma-ray sources and cobalt become
available in what year ? - ...ANSWER...✓✓1946 .
Ernest Rutherford - ...ANSWER...✓✓Alpha particles were
discovered by
?
,3|Page
poor equipment design,
lack of understanding,
lack of poor safety practices. - ...ANSWER...✓✓in the early
years of radiography, what caused personnel to be
overexposed?
late in 1898. - ...ANSWER...✓✓in what year did Marie Curie
discover radium?
Marie and Pierre Curie - ...ANSWER...✓✓Who coined the
term radioactivity?
3" in. (7.62 cm) - ...ANSWER...✓✓In the early years of
radiography from 1920-1930, the maximum thickness that
could be inspected via X-radiation was__________ of steel?
-improper surveys
-the source being left in an uncontrolled state
-the source not being locked once retracted to the
shielded position - ...ANSWER...✓✓Historically, it has been
proven that the predominant cause of overexposures is?
, 4|Page
the responsibility to adhere to the regulations, license
conditions and company policies falls to -
...ANSWER...✓✓the radiographer
Ernest Rutherford - ...ANSWER...✓✓Alpha particles were
discovered by?
Massachusetts General - ...ANSWER...✓✓The first medical
X ray was conducted at?
true - ...ANSWER...✓✓Regulations from one state to the
next are essentially the same for Radioactive materials
(RSO) Their program's radiation safety officer -
...ANSWER...✓✓A radiographer has several avenues to
seek guidance and counsel. The first person he or she can
turn to is?
Wilhelm Röntgen - ...ANSWER...✓✓the origins of industrial
radiography can be attributed to?
