Radiographic Testing Level 2 (RT-2) General Exam
questions with verified answers
'Undercut' or 'burned out' edges of the test piece film image are caused
by Ans✓✓✓ scattered radiation
'Undercut' or 'burned out" edges of the test piece in film image can
usually be reduced by Ans✓✓✓ masking the test piece
A change in what parameter would require a new X ray exposure chart
Ans✓✓✓ X ray machine
A change in which of the following parameters would require a new X
ray exposure chart Ans✓✓✓ Required film density
A dark crescent shaped mark in the center of a weld bead radiographic
image would probably be Ans✓✓✓ a film artifact
A dark crescent shaped spot, clearly in the base metal adjacent to a weld
would probably be Ans✓✓✓ a film crimp mark
A depression at the edge of a weld where the base metal has been melted
during welding is called Ans✓✓✓ undercut
A photon-electron interaction in which a photon gives up a portion of its
energy to an electron is called Ans✓✓✓ the compton effect
, A photon-electron interaction in which a photon gives up all its energy
to an electron is called Ans✓✓✓ the photoelectric effect
A photon-nuclear interaction in which energy is converted into sub-
atomic particles is called Ans✓✓✓ pair production
A plot of film density versus log of relative exposure is called Ans✓✓✓
An H&D curve, a sensitometric curve, and a characteristic curve
A quantity calculated by the formula, 0.693/(decay constant) is called
Ans✓✓✓ half-life
A quantity expressed by the formula, 0.693/(absorption co-efficient) is
called Ans✓✓✓ Half value layer
A radiograph is made using film X with an exposure of 10 mA-min.
Film density obtained in the area of interest is 1.0. If it is desired to
achieve a density of 2.0 in the area of interest, what exposure is
required? (log relative exposure= 1.1 for a density of 1.0 and 1.62 for a
density of 2.0) Ans✓✓✓ 41.67 mA-min
A radiographic indication in a weld, characterized by two parallel dark
lines in the film image, would probably be caused by Ans✓✓✓ lack of
fusion
questions with verified answers
'Undercut' or 'burned out' edges of the test piece film image are caused
by Ans✓✓✓ scattered radiation
'Undercut' or 'burned out" edges of the test piece in film image can
usually be reduced by Ans✓✓✓ masking the test piece
A change in what parameter would require a new X ray exposure chart
Ans✓✓✓ X ray machine
A change in which of the following parameters would require a new X
ray exposure chart Ans✓✓✓ Required film density
A dark crescent shaped mark in the center of a weld bead radiographic
image would probably be Ans✓✓✓ a film artifact
A dark crescent shaped spot, clearly in the base metal adjacent to a weld
would probably be Ans✓✓✓ a film crimp mark
A depression at the edge of a weld where the base metal has been melted
during welding is called Ans✓✓✓ undercut
A photon-electron interaction in which a photon gives up a portion of its
energy to an electron is called Ans✓✓✓ the compton effect
, A photon-electron interaction in which a photon gives up all its energy
to an electron is called Ans✓✓✓ the photoelectric effect
A photon-nuclear interaction in which energy is converted into sub-
atomic particles is called Ans✓✓✓ pair production
A plot of film density versus log of relative exposure is called Ans✓✓✓
An H&D curve, a sensitometric curve, and a characteristic curve
A quantity calculated by the formula, 0.693/(decay constant) is called
Ans✓✓✓ half-life
A quantity expressed by the formula, 0.693/(absorption co-efficient) is
called Ans✓✓✓ Half value layer
A radiograph is made using film X with an exposure of 10 mA-min.
Film density obtained in the area of interest is 1.0. If it is desired to
achieve a density of 2.0 in the area of interest, what exposure is
required? (log relative exposure= 1.1 for a density of 1.0 and 1.62 for a
density of 2.0) Ans✓✓✓ 41.67 mA-min
A radiographic indication in a weld, characterized by two parallel dark
lines in the film image, would probably be caused by Ans✓✓✓ lack of
fusion
