ASNT RT I EXAM NEWEST 2025 ACTUAL EXAM COMPLETE 150
QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+
Although there may be other reasons for using calcium tungstate screens in industrial
radiography, they are most usually used to: - (answers)Decrease exposure time
In film radiography, pentrameters are usually placed: - (answers)on the source side of the test
object
The penetrating ability of an x-ray beam is governed by: - (answers)Kilovoltage
Co-60 used in nondestructive testing emits: - (answers)Gamma rays
A densitometer is an instrument for measuring: - (answers)film density
Three liquids which are essential to process an exposed film properly are: - (answers)Developer,
fixer and water
The two most common causes for excessively high-density radiographs are: -
你是想要一篇“眼睛容易
(answers)overexposure and underdevelopment
阅读的”中文文章
the time required for one-half of the atoms in a particular sample of radioactive material to
disintegrate is called: - (answers)a half- life
What does the term R/h refer to when speaking of intensity? - (answers)Roentgens per hour
The ability to detect a small discontinuity or flaw is called: - (answers)radiographic sensitivity
, Movement, geometry, and screen contact are three factors that affect radiographic: -
(answers)unsharpness
The difference between the densities of two areas of a radiograph is called: -
(answers)radiographic contrast
The most widely used unit of measurement for measuring the rate at which the output of a
gamma ray source decays is the: - (answers)curie
Exposure to x-rays or gamma rays will have what effect on the body? - (answers)It may have a
cumulative effect which must be considered
Which dose would be dangerous, if not fatal, if applied to the entire body in a short period of
time?
A. 1.5 - 15R
B. 25 - 70R
C. 200 - 800R
D. All of the above doses would most likely be fatal - (answers)C. 200 - 800 R
When doing gamma ray radiography with high- intensity emitters, the sources are best handled: -
(answers)by remote handling equipment
你是想要一篇“眼睛容易
阅读的”中文文章
If a film is placed in a developer solution and allowed to develop without any agitation: -
(answers)There will be a tendency for areas to affect each other
The selection of the proper type of film to be used for the x-ray examination of a particular part
depends on: - (answers)the thickness of the part, the material of the specimen, the voltage range
of the available x-ray machine
A Co-60 source has a half life of: - (answers)5.3 Years
QUESTIONS AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS) |ALREADY GRADED A+
Although there may be other reasons for using calcium tungstate screens in industrial
radiography, they are most usually used to: - (answers)Decrease exposure time
In film radiography, pentrameters are usually placed: - (answers)on the source side of the test
object
The penetrating ability of an x-ray beam is governed by: - (answers)Kilovoltage
Co-60 used in nondestructive testing emits: - (answers)Gamma rays
A densitometer is an instrument for measuring: - (answers)film density
Three liquids which are essential to process an exposed film properly are: - (answers)Developer,
fixer and water
The two most common causes for excessively high-density radiographs are: -
你是想要一篇“眼睛容易
(answers)overexposure and underdevelopment
阅读的”中文文章
the time required for one-half of the atoms in a particular sample of radioactive material to
disintegrate is called: - (answers)a half- life
What does the term R/h refer to when speaking of intensity? - (answers)Roentgens per hour
The ability to detect a small discontinuity or flaw is called: - (answers)radiographic sensitivity
, Movement, geometry, and screen contact are three factors that affect radiographic: -
(answers)unsharpness
The difference between the densities of two areas of a radiograph is called: -
(answers)radiographic contrast
The most widely used unit of measurement for measuring the rate at which the output of a
gamma ray source decays is the: - (answers)curie
Exposure to x-rays or gamma rays will have what effect on the body? - (answers)It may have a
cumulative effect which must be considered
Which dose would be dangerous, if not fatal, if applied to the entire body in a short period of
time?
A. 1.5 - 15R
B. 25 - 70R
C. 200 - 800R
D. All of the above doses would most likely be fatal - (answers)C. 200 - 800 R
When doing gamma ray radiography with high- intensity emitters, the sources are best handled: -
(answers)by remote handling equipment
你是想要一篇“眼睛容易
阅读的”中文文章
If a film is placed in a developer solution and allowed to develop without any agitation: -
(answers)There will be a tendency for areas to affect each other
The selection of the proper type of film to be used for the x-ray examination of a particular part
depends on: - (answers)the thickness of the part, the material of the specimen, the voltage range
of the available x-ray machine
A Co-60 source has a half life of: - (answers)5.3 Years
