EMC VT Flashcards
Bursts and laps are typically found in which of the following forming processes?
a) Forging
b) Rolling
c) Drawing
d) Extruding
a) Forging
A casting discontinuity that appears as a fold of metal or a smooth, crack-like indication is typically
called:
a) a hot tear
b) unfused porosity
c) an inclusion
d) a cold shut
d) a cold shut
During a visual examination, a welding discontinuity that could not be detected would be:
a) undercut
b) underfill
c) cracks
d) side wall lack of fusion
d) side wall lack of fusion
An inherent discontinuity in forgings that cannot be detected using visual testing is:
a) bursts
b) cracks
c) seams
d) laps
c) seams
A welding discontinuity typically referred to as distortion is caused by:
a) the use of a tungsten electrode in the GTAW welding process
b) the uncontrolled heating and cooling of the weld metal
c) exposure to radiation and other NDE techniques
d) the excess amount of porosity in the weld metal
b) the uncontrolled heating and cooling of the weld metal
The ability of metal to return to its original size and shape after being loaded and unloaded is called:
a) plastic deformation
b) elastic deformation
c) tensile strength
d) stress-strain deformation
b) elastic deformation
A mechanical device that controls flow into, inside of, or out of a piping system is called a:
a) blind flange
b) pump
c) valve
d) flow controller
c) valve
The deterioration of a metal resulting from electrochemical reactions with environment is referred to
as:
a) erosion
b) corrosion
c) wear
d) fatigue
b) corrosion
In welding, weld metal protrusion beyond the fusion line at the weld toe is called:
a) overlap
b) undercut
c) reinforcement
d) incomplete fusion
a) overlap
The maximum diameter of a borescope that can be used for the test is determined by:
a) object depth
b) entry port size
c) objective distance
d) direction of view
b) entry port size
Porosity is:
a) material used during the welding process
b) gas entrapped below the surface of a material
c) gas entrapped below or at the surface of a material
d) foreign crystallized material entrapped below the surface of a material
c) gas entrapped below or at the surface of a material
Service-induced discontinuities can be the result of:
a) vibration
b) stress risers
c) corrosion
d) all of the above
d) all of the above
A mechanical device that raises, transfers, or pressurizes fluids is:
a) a valve
b) a snubber
c) an electric motor
d) a pump
d) a pump
An attachment to a component that is welded, cast, or forged is called:
a) a non-integral attachment
b) an integral attachment
c) a restraint
d) a clamp
b) an integral attachment
A discontinuity associated with metal overflow during forging is called a:
a) seam
b) flake
c) lap
d) lamination
c) lap
