ASNT ULTRASONIC LEVEL I EXAM
2025/2026 BANK COMPLETE 400 BEST
RESEARCHED QUESTIONS WITH
DETAILED VERIFIED ANSWERS
(100% CORRECT ANSWERS)
CURRENTLY TESTING /A+ GRADE
ASSURED
The presence of a discontinuity will not produce a specific
discontinuity indication on the instrument display when
using the: - ....ANSWER...Through-transmission testing
method
The depth of a discontinuity cannot be determined when
using the: - ....ANSWER...Through-transmission
testing method
When inspection coarse-grained material, a sound wave is
most easily scattered by the grain structure by a frequency
of: - ....ANSWER...10 MHz
The thickest crystal is contained in: - ....ANSWER...A 1
1
,MHz transducer
When performing a surface wave test, indications may
result from: - ....ANSWER...A surface discontinuity
Which of the following discontinuities located 152 mm (6
in) from the entry surface results in the largest display
indication if all factors except discontinuity surface
condition and orientation are the same? - ....ANSWER...A
2 mm (0.08 in) diameter flat-surfaced discontinuity
whose major face is perpendicular to the direction of
the sound beam propagation.
Transducers constructed with a plastic wedge or standoff
between the transducer element and the test piece are
commonly used for: - ....ANSWER...Angle beam contact
testing
An ultrasonic test using straight beam contact transducer
is being conducted through the thickness of a flat part
such as a plate. This test should detect -
....ANSWER...Laminar-type flaws with major dimensions
2
,parallel to the rolled surface
In ultrasonic testing, a liquid coupling medium between
the crystal surface and the part surface is necessary
because: - ....ANSWER...An air interface between the
crystal surface and the part surface would almost
completely reflect the ultrasonic vibrations
3
, Entry surface resolution is the characteristic of an
ultrasonic testing system which defines its ability to: -
....ANSWER...Detect discontinuities located just beneath
the entry surface in the part being tested
During ultrasonic testing by the immersion method, it is
frequently necessary to angulate the transducer with a
discontinuity is located in order to: - ....ANSWER...Obtain
a maximum response if the discontinuity is not originally
oriented perpendicular to the ultrasonic beam
All other factors being equal, the mode of vibration that
has the greatest velocity is the: -
....ANSWER...Longitudinal wave
On the area amplitude ultrasonic standard test blocks, the
flat bottom holes in the blocks are: -
....ANSWER...Different in diameter, increasing by 0.4mm
(0.016in) increments from the No. "1" block to the No. "8"
block,
4
2025/2026 BANK COMPLETE 400 BEST
RESEARCHED QUESTIONS WITH
DETAILED VERIFIED ANSWERS
(100% CORRECT ANSWERS)
CURRENTLY TESTING /A+ GRADE
ASSURED
The presence of a discontinuity will not produce a specific
discontinuity indication on the instrument display when
using the: - ....ANSWER...Through-transmission testing
method
The depth of a discontinuity cannot be determined when
using the: - ....ANSWER...Through-transmission
testing method
When inspection coarse-grained material, a sound wave is
most easily scattered by the grain structure by a frequency
of: - ....ANSWER...10 MHz
The thickest crystal is contained in: - ....ANSWER...A 1
1
,MHz transducer
When performing a surface wave test, indications may
result from: - ....ANSWER...A surface discontinuity
Which of the following discontinuities located 152 mm (6
in) from the entry surface results in the largest display
indication if all factors except discontinuity surface
condition and orientation are the same? - ....ANSWER...A
2 mm (0.08 in) diameter flat-surfaced discontinuity
whose major face is perpendicular to the direction of
the sound beam propagation.
Transducers constructed with a plastic wedge or standoff
between the transducer element and the test piece are
commonly used for: - ....ANSWER...Angle beam contact
testing
An ultrasonic test using straight beam contact transducer
is being conducted through the thickness of a flat part
such as a plate. This test should detect -
....ANSWER...Laminar-type flaws with major dimensions
2
,parallel to the rolled surface
In ultrasonic testing, a liquid coupling medium between
the crystal surface and the part surface is necessary
because: - ....ANSWER...An air interface between the
crystal surface and the part surface would almost
completely reflect the ultrasonic vibrations
3
, Entry surface resolution is the characteristic of an
ultrasonic testing system which defines its ability to: -
....ANSWER...Detect discontinuities located just beneath
the entry surface in the part being tested
During ultrasonic testing by the immersion method, it is
frequently necessary to angulate the transducer with a
discontinuity is located in order to: - ....ANSWER...Obtain
a maximum response if the discontinuity is not originally
oriented perpendicular to the ultrasonic beam
All other factors being equal, the mode of vibration that
has the greatest velocity is the: -
....ANSWER...Longitudinal wave
On the area amplitude ultrasonic standard test blocks, the
flat bottom holes in the blocks are: -
....ANSWER...Different in diameter, increasing by 0.4mm
(0.016in) increments from the No. "1" block to the No. "8"
block,
4
