IRRSP Test Questions Xray NDT/NDE 83
questions wit 100% correct answers
Specific emission Constant for Co60 is? - answer 14R/Hr/ci @ 1f
Specific emission Constant for Ir192 is? - answer 5.2 R/Hr/ci @ 1f
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 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
?
This study source was downloaded by 100000869267694 from CourseHero.com on 10-24-2023 08:28:28 GMT -05:00
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, 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 lef 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?
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?
This study source was downloaded by 100000869267694 from CourseHero.com on 10-24-2023 08:28:28 GMT -05:00
https://www.coursehero.com/file/214577053/IRRSP-Test-Questions-Xray-NDTNDE-83-questions-wit-100-correct-answersdocx/
questions wit 100% correct answers
Specific emission Constant for Co60 is? - answer 14R/Hr/ci @ 1f
Specific emission Constant for Ir192 is? - answer 5.2 R/Hr/ci @ 1f
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 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
?
This study source was downloaded by 100000869267694 from CourseHero.com on 10-24-2023 08:28:28 GMT -05:00
https://www.coursehero.com/file/214577053/IRRSP-Test-Questions-Xray-NDTNDE-83-questions-wit-100-correct-answersdocx/
, 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 lef 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?
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?
This study source was downloaded by 100000869267694 from CourseHero.com on 10-24-2023 08:28:28 GMT -05:00
https://www.coursehero.com/file/214577053/IRRSP-Test-Questions-Xray-NDTNDE-83-questions-wit-100-correct-answersdocx/
