Radiographic Testing Level 1 Specific questions
with verified answers
A beam of radiation consisting of a single wavelength is know as?
Ans✓✓✓ Monochromatic radiation.
A change in which of the following parameters would necessitate the
construction of a new X ray exposure chart? Ans✓✓✓ X ray machine
used?
A Curie (37 gigabecquere) of radioactive material will distinguish at the
rate of? Ans✓✓✓ 37 Billion (3.7x10^10) disintegrations per seconds.
A filter is placed: Ans✓✓✓ Between the source and the specimen.
A filter will reduce the amount of _____________ in the primary
radiation beam. Ans✓✓✓ Low energy radiation.
A possible result of failing to use a stop bath during manual
development is? Ans✓✓✓ Streaking of the film.
A radiation producing device which emits a broad spectrum of
wavelength is? Ans✓✓✓ An X ray machine.
A radiation producing device which emits radiation of one ore a few
discreet wavelength is? Ans✓✓✓ A Gamma ray source.
, A radiographic sensitivity level of 2-2T means that? Ans✓✓✓ The 2T
hole in a penetrometer which is 2% of the test piece thickness must be
visible on the film.
A thin white line within the film image of a weld crown might be?
Ans✓✓✓ A hair between the lead screen and the film.
After the step wedge radiographs have been made, the ___________ of
the image of each step is recorded on chart: Ans✓✓✓ Density.
Almost all gamma radiography today is done with artificially activated.
Ans✓✓✓ Isotopes.
An advantage of Gamma ray source if? Ans✓✓✓ Outside power is
normally not required.
An effect of scattered radiation is to? Ans✓✓✓ Diminish contrast,
detail and clarity of radiographic image.
Expression describing relations between Exposure Time(T) and Focus to
Film Distance (D) Ans✓✓✓ T2/T1= (D1^2/D2^2)
Expression describing relations between milliamperage (M) and
Exposure time (DT) Ans✓✓✓ M1/M2= T2/T1
with verified answers
A beam of radiation consisting of a single wavelength is know as?
Ans✓✓✓ Monochromatic radiation.
A change in which of the following parameters would necessitate the
construction of a new X ray exposure chart? Ans✓✓✓ X ray machine
used?
A Curie (37 gigabecquere) of radioactive material will distinguish at the
rate of? Ans✓✓✓ 37 Billion (3.7x10^10) disintegrations per seconds.
A filter is placed: Ans✓✓✓ Between the source and the specimen.
A filter will reduce the amount of _____________ in the primary
radiation beam. Ans✓✓✓ Low energy radiation.
A possible result of failing to use a stop bath during manual
development is? Ans✓✓✓ Streaking of the film.
A radiation producing device which emits a broad spectrum of
wavelength is? Ans✓✓✓ An X ray machine.
A radiation producing device which emits radiation of one ore a few
discreet wavelength is? Ans✓✓✓ A Gamma ray source.
, A radiographic sensitivity level of 2-2T means that? Ans✓✓✓ The 2T
hole in a penetrometer which is 2% of the test piece thickness must be
visible on the film.
A thin white line within the film image of a weld crown might be?
Ans✓✓✓ A hair between the lead screen and the film.
After the step wedge radiographs have been made, the ___________ of
the image of each step is recorded on chart: Ans✓✓✓ Density.
Almost all gamma radiography today is done with artificially activated.
Ans✓✓✓ Isotopes.
An advantage of Gamma ray source if? Ans✓✓✓ Outside power is
normally not required.
An effect of scattered radiation is to? Ans✓✓✓ Diminish contrast,
detail and clarity of radiographic image.
Expression describing relations between Exposure Time(T) and Focus to
Film Distance (D) Ans✓✓✓ T2/T1= (D1^2/D2^2)
Expression describing relations between milliamperage (M) and
Exposure time (DT) Ans✓✓✓ M1/M2= T2/T1
