ASNT LEVEL III ACTUAL FINAL PAPER QUESTIONS AND
ANSWERS GRADED A+
✔✔a. Signal generator - ✔✔CH4 (ET). 19 - Which of the following is not a commonly
used eddy current testing read-out mechanism?
✔✔d. must be constructed from the same material of the object being inspected -
✔✔CH4 (ET). 20 - Reference standards used for electromagnetic testing:
✔✔d. If the material is aluminum, the surface should be anodized - ✔✔CH4 (ET). 21 -
Which of the following conditions is not important when selecting specimens to be used
as reference standards?
✔✔b. A small inclusion in the center of the rod - ✔✔CH4 (ET). 22 - Which of the
following conditions would be the most difficult to detect when testing a rod using an
encircling coil?
✔✔a. observing the liftoff effect caused by the coating - ✔✔CH4 (ET). 23 - The
thickness of nonconductive coatings on a conductive base can be most simply
measured by:
✔✔a. rods, tubes, and wire - ✔✔CH4 (ET). 24 - Some of the products commonly tested
using encircling coils are:
✔✔b. there is a unique range of conductivity values for each alloy - ✔✔CH4 (ET). 25 - It
is often possible to sort various alloys of a nonmagnetic metal by means of an
electromagnetic test when:
✔✔d. Small discontinuities - ✔✔CH4 (ET). 26 - When conducting electromagnetic
testing on tubing with a system that includes a frequency discriminating circuit, which of
the following variables would be classified as a high-frequency variable?
✔✔a. A 102 mm (4 in.) thick plate to be tested for discontinuities throughout the plate -
✔✔CH4 (ET). 27 - Which of the following is not a candidate for testing by the
electromagnetic testing method?
✔✔d. Sintered material components - ✔✔CH4 (LT). 1 - Which of the following systems
or components are not good candidates for leak testing?
✔✔a. Leak testing - ✔✔CH4 (LT). 2 - A helium mass spectrometer is used in which of
the following NDT techniques or methods?
✔✔d. Detector probe - ✔✔CH4 (LT). 3 - Which of the following is a technique of leak
testing?
,✔✔c. mass spectrometer test - ✔✔CH4 (LT). 4 - Potentially, the most sensitive leak
testing technique is the:
✔✔b. Leak testing - ✔✔CH4 (LT). 5 - Establishing differential pressure between the test
object and environment is an essential element in which of the following NDT methods?
✔✔d. Dynamic leak test - ✔✔CH4 (LT). 6 - Which of the following best describes the
type of leak test used when the interior of the test object is evacuated and a tracer gas
is applied to the exterior, while the leak detector is connected to the evacuating system?
✔✔a. increase - ✔✔CH4 (LT). 7 - Assuming no significant leakage, if the temperature
increases, during a pressure drop leak test, the pressure in the system under test
would:
✔✔c. The instrument and the test procedure were capable of detecting leakage of a
certain size during the test - ✔✔CH4 (LT). 8 - If the sensitivity of the halogen leak
detector is constant throughout a test, which of the following is true upon completion of
the test?
✔✔b. gas or fluid flow - ✔✔CH4 (LT). 9 - All leak detection techniques are dependent
upon:
✔✔a. the release of gas from materials in a vacuum - ✔✔CH4 (LT). 10 - In an
evacuated system, sensitivity of a pressure change leak test is dependent not only on
the pressure change observed, but also on the degree of outgassing. Outgassing is
best defined as:
✔✔b. capillary forces - ✔✔CH4 (PT). 1 - The tendency of a liquid penetrant to enter a
discontinuity is primarily related to:
✔✔d. locating discontinuities open to the surface - ✔✔CH4 (PT). 2 - Liquid penetrant
testing is a nondestructive method that can be used for:
✔✔a. This method can accurately measure the depth of a crack or discontinuity -
✔✔CH4 (PT). 3 - Which of the following is not a characteristic that applies to liquid
penetrant testing?
✔✔d. fluorescence - ✔✔CH4 (PT). 4 - The property of a dye used in penetrant materials
to emit light in the range of wavelengths different from the wavelength of light that
excites the emission is called:
✔✔d. determined by experimentation - ✔✔CH4 (PT). 5 - When using a fluorescent,
post-emulsifier penetrant, the length of time the emulsifier is allowed to remain on the
,part is critical for detecting shallow discontinuities. The optimum length of time should
be:
✔✔b. visible dye penetrants are used - ✔✔CH4 (PT). 6 - A red penetrant indication
against white background is most likely to be seen when:
✔✔b. using a water spray rinse - ✔✔CH4 (PT). 7 - The most widely accepted method
for removing excessive water-washable penetrant from the surface of a test specimen is
by:
✔✔a. Water-washable; visible dye - ✔✔CH4 (PT). 8 - Which of the following penetrant
systems is generally considered the least sensitive?
✔✔d. Wiping with dry wipes, then wiping with a solvent-dampened cloth, and finally
wiping with a dry cloth - ✔✔CH4 (PT). 9 - When performing a liquid penetrant test using
solvent-removable visible dye penetrant, there are several ways to remove excess
penetrant from the surface of the part. Which of the methods listed below is generally
regarded as most suitable for giving accurate test results?
✔✔a. penetrant residue left is discontinuities may not readily dissolve, and the retest
may be misleading - ✔✔CH4 (PT). 10 - A problem with retesting a specimen that has
been previously tested using liquid penetrant is that the:
✔✔c. compare two sections of artificially cracked specimens - ✔✔CH4 (PT). 11 - A
commonly used method of checking the overall performance of a penetrant material
system is to:
✔✔b. react with the surface penetrant to make the penetrant water-washable - ✔✔CH4
(PT). 12 - The function of emulsifier in the post-emulsified penetrant process is to:
✔✔a. Developers are normally highly fluorescent - ✔✔CH4 (PT). 13 - Which of the
following statements does not apply to developers used during penetrant testing?
✔✔c. a smooth continuous line - ✔✔CH4 (PT). 14 - The penetrant indication for a cold
shut on the surface of a casting will normally be:
✔✔b. a continuous line, either straight or jagged - ✔✔CH4 (PT). 15 - A crack-type
discontinuity will generally appear as:
✔✔b. porosity - ✔✔CH4 (PT). 16 - In a penetrant test, scattered round indications of the
surface of a part could be indicative of:
✔✔a. Indications due to part geometry or part design configurations - ✔✔CH4 (PT). 17 -
Which of the following are typical nonrelevant indications found in penetrant testing?
, ✔✔a. Discontinuities may be closed - ✔✔CH4 (PT). 18 - Which of the statements below
best states the results of sandblasting for cleaning surfaces to be penetrant tested?
✔✔c. thin continuous line - ✔✔CH4 (PT). 19 - The penetrant indication of a forging lap
will normally be a:
✔✔d. the alkalines in wet developers and most emulsifiers could cause surface pitting,
particularly in moist atmoshperes - ✔✔CH4 (PT). 20 - Aluminum alloy test specimens
that have been tested by the liquid penetrant method should be thoroughly cleaned after
testing because:
✔✔c. Penetrant can be diluted in water for hydro testing - ✔✔CH4 (PT). 21 - Which of
the following statements is true when using penetrants for leak detection?
✔✔c. Cracks or seams - ✔✔CH4 (PT). 22 - Which of the following is a discontinuity that
might be found in rolled bar stock?
✔✔b. has a multitude of extremely small pores - ✔✔CH4 (PT). 23 - Anodized surfaces
are usually considered poor candidates for high-sensitivity liquid penetrant examination
because the anodizing process produces a conversion layer that:
✔✔c. Visible dye penetrant method - ✔✔CH4 (PT). 24 - Which of the following
penetrant methods does not normally require a source of electricity to properly conduct
a test?
✔✔d. Welds with rough surfaces may need to be ground smooth prior to penetrant
testing - ✔✔CH4 (PT). 25 - Which of the following statements is true concerning
penetrant testing of welds with rough surfaces?
✔✔a. Copper alloys - ✔✔CH4 (MT). 1 - Which of the following materials cannot be
tested by magnetic particle techniques?
✔✔c. ferromagnetic - ✔✔CH4 (MT). 2 - Materials that are strongly attracted to a magnet
are called:
✔✔b. At right angles - ✔✔CH4 (MT). 3 - Magnetic lines of force (magnetic fields) are
oriented in what direction in relation to the direction of the magnetizing current?
✔✔c. the lines of force associated with a magnetic field - ✔✔CH4 (MT). 4 - Magnetizing
flux is a term that relates to:
ANSWERS GRADED A+
✔✔a. Signal generator - ✔✔CH4 (ET). 19 - Which of the following is not a commonly
used eddy current testing read-out mechanism?
✔✔d. must be constructed from the same material of the object being inspected -
✔✔CH4 (ET). 20 - Reference standards used for electromagnetic testing:
✔✔d. If the material is aluminum, the surface should be anodized - ✔✔CH4 (ET). 21 -
Which of the following conditions is not important when selecting specimens to be used
as reference standards?
✔✔b. A small inclusion in the center of the rod - ✔✔CH4 (ET). 22 - Which of the
following conditions would be the most difficult to detect when testing a rod using an
encircling coil?
✔✔a. observing the liftoff effect caused by the coating - ✔✔CH4 (ET). 23 - The
thickness of nonconductive coatings on a conductive base can be most simply
measured by:
✔✔a. rods, tubes, and wire - ✔✔CH4 (ET). 24 - Some of the products commonly tested
using encircling coils are:
✔✔b. there is a unique range of conductivity values for each alloy - ✔✔CH4 (ET). 25 - It
is often possible to sort various alloys of a nonmagnetic metal by means of an
electromagnetic test when:
✔✔d. Small discontinuities - ✔✔CH4 (ET). 26 - When conducting electromagnetic
testing on tubing with a system that includes a frequency discriminating circuit, which of
the following variables would be classified as a high-frequency variable?
✔✔a. A 102 mm (4 in.) thick plate to be tested for discontinuities throughout the plate -
✔✔CH4 (ET). 27 - Which of the following is not a candidate for testing by the
electromagnetic testing method?
✔✔d. Sintered material components - ✔✔CH4 (LT). 1 - Which of the following systems
or components are not good candidates for leak testing?
✔✔a. Leak testing - ✔✔CH4 (LT). 2 - A helium mass spectrometer is used in which of
the following NDT techniques or methods?
✔✔d. Detector probe - ✔✔CH4 (LT). 3 - Which of the following is a technique of leak
testing?
,✔✔c. mass spectrometer test - ✔✔CH4 (LT). 4 - Potentially, the most sensitive leak
testing technique is the:
✔✔b. Leak testing - ✔✔CH4 (LT). 5 - Establishing differential pressure between the test
object and environment is an essential element in which of the following NDT methods?
✔✔d. Dynamic leak test - ✔✔CH4 (LT). 6 - Which of the following best describes the
type of leak test used when the interior of the test object is evacuated and a tracer gas
is applied to the exterior, while the leak detector is connected to the evacuating system?
✔✔a. increase - ✔✔CH4 (LT). 7 - Assuming no significant leakage, if the temperature
increases, during a pressure drop leak test, the pressure in the system under test
would:
✔✔c. The instrument and the test procedure were capable of detecting leakage of a
certain size during the test - ✔✔CH4 (LT). 8 - If the sensitivity of the halogen leak
detector is constant throughout a test, which of the following is true upon completion of
the test?
✔✔b. gas or fluid flow - ✔✔CH4 (LT). 9 - All leak detection techniques are dependent
upon:
✔✔a. the release of gas from materials in a vacuum - ✔✔CH4 (LT). 10 - In an
evacuated system, sensitivity of a pressure change leak test is dependent not only on
the pressure change observed, but also on the degree of outgassing. Outgassing is
best defined as:
✔✔b. capillary forces - ✔✔CH4 (PT). 1 - The tendency of a liquid penetrant to enter a
discontinuity is primarily related to:
✔✔d. locating discontinuities open to the surface - ✔✔CH4 (PT). 2 - Liquid penetrant
testing is a nondestructive method that can be used for:
✔✔a. This method can accurately measure the depth of a crack or discontinuity -
✔✔CH4 (PT). 3 - Which of the following is not a characteristic that applies to liquid
penetrant testing?
✔✔d. fluorescence - ✔✔CH4 (PT). 4 - The property of a dye used in penetrant materials
to emit light in the range of wavelengths different from the wavelength of light that
excites the emission is called:
✔✔d. determined by experimentation - ✔✔CH4 (PT). 5 - When using a fluorescent,
post-emulsifier penetrant, the length of time the emulsifier is allowed to remain on the
,part is critical for detecting shallow discontinuities. The optimum length of time should
be:
✔✔b. visible dye penetrants are used - ✔✔CH4 (PT). 6 - A red penetrant indication
against white background is most likely to be seen when:
✔✔b. using a water spray rinse - ✔✔CH4 (PT). 7 - The most widely accepted method
for removing excessive water-washable penetrant from the surface of a test specimen is
by:
✔✔a. Water-washable; visible dye - ✔✔CH4 (PT). 8 - Which of the following penetrant
systems is generally considered the least sensitive?
✔✔d. Wiping with dry wipes, then wiping with a solvent-dampened cloth, and finally
wiping with a dry cloth - ✔✔CH4 (PT). 9 - When performing a liquid penetrant test using
solvent-removable visible dye penetrant, there are several ways to remove excess
penetrant from the surface of the part. Which of the methods listed below is generally
regarded as most suitable for giving accurate test results?
✔✔a. penetrant residue left is discontinuities may not readily dissolve, and the retest
may be misleading - ✔✔CH4 (PT). 10 - A problem with retesting a specimen that has
been previously tested using liquid penetrant is that the:
✔✔c. compare two sections of artificially cracked specimens - ✔✔CH4 (PT). 11 - A
commonly used method of checking the overall performance of a penetrant material
system is to:
✔✔b. react with the surface penetrant to make the penetrant water-washable - ✔✔CH4
(PT). 12 - The function of emulsifier in the post-emulsified penetrant process is to:
✔✔a. Developers are normally highly fluorescent - ✔✔CH4 (PT). 13 - Which of the
following statements does not apply to developers used during penetrant testing?
✔✔c. a smooth continuous line - ✔✔CH4 (PT). 14 - The penetrant indication for a cold
shut on the surface of a casting will normally be:
✔✔b. a continuous line, either straight or jagged - ✔✔CH4 (PT). 15 - A crack-type
discontinuity will generally appear as:
✔✔b. porosity - ✔✔CH4 (PT). 16 - In a penetrant test, scattered round indications of the
surface of a part could be indicative of:
✔✔a. Indications due to part geometry or part design configurations - ✔✔CH4 (PT). 17 -
Which of the following are typical nonrelevant indications found in penetrant testing?
, ✔✔a. Discontinuities may be closed - ✔✔CH4 (PT). 18 - Which of the statements below
best states the results of sandblasting for cleaning surfaces to be penetrant tested?
✔✔c. thin continuous line - ✔✔CH4 (PT). 19 - The penetrant indication of a forging lap
will normally be a:
✔✔d. the alkalines in wet developers and most emulsifiers could cause surface pitting,
particularly in moist atmoshperes - ✔✔CH4 (PT). 20 - Aluminum alloy test specimens
that have been tested by the liquid penetrant method should be thoroughly cleaned after
testing because:
✔✔c. Penetrant can be diluted in water for hydro testing - ✔✔CH4 (PT). 21 - Which of
the following statements is true when using penetrants for leak detection?
✔✔c. Cracks or seams - ✔✔CH4 (PT). 22 - Which of the following is a discontinuity that
might be found in rolled bar stock?
✔✔b. has a multitude of extremely small pores - ✔✔CH4 (PT). 23 - Anodized surfaces
are usually considered poor candidates for high-sensitivity liquid penetrant examination
because the anodizing process produces a conversion layer that:
✔✔c. Visible dye penetrant method - ✔✔CH4 (PT). 24 - Which of the following
penetrant methods does not normally require a source of electricity to properly conduct
a test?
✔✔d. Welds with rough surfaces may need to be ground smooth prior to penetrant
testing - ✔✔CH4 (PT). 25 - Which of the following statements is true concerning
penetrant testing of welds with rough surfaces?
✔✔a. Copper alloys - ✔✔CH4 (MT). 1 - Which of the following materials cannot be
tested by magnetic particle techniques?
✔✔c. ferromagnetic - ✔✔CH4 (MT). 2 - Materials that are strongly attracted to a magnet
are called:
✔✔b. At right angles - ✔✔CH4 (MT). 3 - Magnetic lines of force (magnetic fields) are
oriented in what direction in relation to the direction of the magnetizing current?
✔✔c. the lines of force associated with a magnetic field - ✔✔CH4 (MT). 4 - Magnetizing
flux is a term that relates to:
