ASNT LEVEL III ACTUAL EXAM 2026 FULL
QUESTIONS AND CORRECT ANSWERS
◉ Some of the products commonly tested using encircling coils are:
Answer: rods, tubes, and wires.
◉ It is often possible to sort various alloys of a nonmagnetic metal
by means of ET when: Answer: there is a unique range of
conductivity values for each alloy.
◉ When conducting ET on tubing with a system that includes a
frequency discriminating circuit, which of the following variables
would be classified as a high-frequency variable? Answer: Small
discontinuities.
◉ Tubing is generally inspected using: Answer: encircling coils.
◉ An out-of-phase condition between current and voltage: Answer:
can exist in both the primary and secondary windings of an eddy
current coil.
◉ For age hardenable aluminum and titanium alloys, changes in
hardness are indicated by changes in: Answer: conductivity.
,◉ Which of the following systems or components would require the
most precaution and special considerations in preparation for a leak
tests? Answer: Sintered material components.
◉ Pressure change leak testing is dependent on three variables. A
change to any of these three will have direct effect on at least one of
the other two variables. These three variables are: Answer: pressure,
volume, and temperature.
◉ Which of the following is a technique of LT? Answer: Detector
probe.
◉ Which of the following LT techniques can reliably quantify a leak
less than or equal to 10^-7 atm cc/sec in a normal industrial
environment? Answer: Mass spectrometer leak testing.
◉ Establishing differential pressure between the test object and the
environment is an essential element in which of the following NDT
methods? Answer: Leak testing.
◉ Which of the following best describes the type of leak test used
when the interior of the test object is continuously evacuated during
the test and a tracer gas is applied tot he exterior, while the leak
detector is connected to the evacuating system? Answer: Dynamic
leak test.
,◉ Assuming no significant leakage, if the temperature increases
during a pressure drop leak test, the pressure in the system under
test would: Answer: increase.
◉ If the sensitivity of the halogen leak detector is constant
throughout a test, and the pre- and post-test calibrations of the
instrument were acceptable, which of the following is true upon
completion of the test? Answer: The instrument and test procedure
were capable of detecting leakage of a certain size during the test.
◉ All leak detection techniques are dependent upon: Answer:
establishing a differential pressure across the test boundary.
◉ In systems under high vacuum, 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:
Answer: the release of gas from materials in a vacuum.
◉ What is essential information that must be recorded to perform a
pressure change leak test? Answer: Temperature, elapsed time,
volume, pressure.
◉ What is the easiest option for increasing sensitivity in a pressure
change leak test? Answer: Increase test time.
, ◉ Performing a helium mass spectrometer hood test, what effect
would a 50% versus 100% helium concentration have on the final
leak rate of the item being tested? Answer: Decrease it.
◉ In a pressure change rate of rise test, what test variables is not
recorded? Answer: Temperature.
◉ In a helium mass spectrometer leak test using the hood technique,
if the inspector has final calibration 40% greater than the
preliminary calibration, what would they do? Answer: Retest the
item.
◉ The tendency of a liquid penetrant to enter a discontinuity is
primarily related to: Answer: capillary action.
◉ PT is a nondestructive test method that can be used for: Answer:
locating discontinuities open to the surface.
◉ Which of the following processes is best situated to detect shallow
discontinuities? Answer: Post-Emulsifiable.
◉ The property of dye used in penetrant materials to emit light in
the range of wavelengths different from the wavelength of visible
light that excites the emission is called: Answer: fluorescence.
QUESTIONS AND CORRECT ANSWERS
◉ Some of the products commonly tested using encircling coils are:
Answer: rods, tubes, and wires.
◉ It is often possible to sort various alloys of a nonmagnetic metal
by means of ET when: Answer: there is a unique range of
conductivity values for each alloy.
◉ When conducting ET on tubing with a system that includes a
frequency discriminating circuit, which of the following variables
would be classified as a high-frequency variable? Answer: Small
discontinuities.
◉ Tubing is generally inspected using: Answer: encircling coils.
◉ An out-of-phase condition between current and voltage: Answer:
can exist in both the primary and secondary windings of an eddy
current coil.
◉ For age hardenable aluminum and titanium alloys, changes in
hardness are indicated by changes in: Answer: conductivity.
,◉ Which of the following systems or components would require the
most precaution and special considerations in preparation for a leak
tests? Answer: Sintered material components.
◉ Pressure change leak testing is dependent on three variables. A
change to any of these three will have direct effect on at least one of
the other two variables. These three variables are: Answer: pressure,
volume, and temperature.
◉ Which of the following is a technique of LT? Answer: Detector
probe.
◉ Which of the following LT techniques can reliably quantify a leak
less than or equal to 10^-7 atm cc/sec in a normal industrial
environment? Answer: Mass spectrometer leak testing.
◉ Establishing differential pressure between the test object and the
environment is an essential element in which of the following NDT
methods? Answer: Leak testing.
◉ Which of the following best describes the type of leak test used
when the interior of the test object is continuously evacuated during
the test and a tracer gas is applied tot he exterior, while the leak
detector is connected to the evacuating system? Answer: Dynamic
leak test.
,◉ Assuming no significant leakage, if the temperature increases
during a pressure drop leak test, the pressure in the system under
test would: Answer: increase.
◉ If the sensitivity of the halogen leak detector is constant
throughout a test, and the pre- and post-test calibrations of the
instrument were acceptable, which of the following is true upon
completion of the test? Answer: The instrument and test procedure
were capable of detecting leakage of a certain size during the test.
◉ All leak detection techniques are dependent upon: Answer:
establishing a differential pressure across the test boundary.
◉ In systems under high vacuum, 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:
Answer: the release of gas from materials in a vacuum.
◉ What is essential information that must be recorded to perform a
pressure change leak test? Answer: Temperature, elapsed time,
volume, pressure.
◉ What is the easiest option for increasing sensitivity in a pressure
change leak test? Answer: Increase test time.
, ◉ Performing a helium mass spectrometer hood test, what effect
would a 50% versus 100% helium concentration have on the final
leak rate of the item being tested? Answer: Decrease it.
◉ In a pressure change rate of rise test, what test variables is not
recorded? Answer: Temperature.
◉ In a helium mass spectrometer leak test using the hood technique,
if the inspector has final calibration 40% greater than the
preliminary calibration, what would they do? Answer: Retest the
item.
◉ The tendency of a liquid penetrant to enter a discontinuity is
primarily related to: Answer: capillary action.
◉ PT is a nondestructive test method that can be used for: Answer:
locating discontinuities open to the surface.
◉ Which of the following processes is best situated to detect shallow
discontinuities? Answer: Post-Emulsifiable.
◉ The property of dye used in penetrant materials to emit light in
the range of wavelengths different from the wavelength of visible
light that excites the emission is called: Answer: fluorescence.
