Take A Free ASNT SNT-TC-1A Level 3 Exam Practice Test – Quiz Course

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Here You Can Take A Free ASNT SNT-TC-1A Level 3 Exam Practice Test with Latest ASNT Level III Basic Question and Answers

1.

SNT-Te-lA, Sections 1, 2 and 3
ASNT intended that the recommendations of SNT-TC-1A be applied: 

 
 
 
 

2.

To which of the following NOT methods is SNT-TC-1A currently not applicable?

 
 
 
 

3.

Who should be responsible to assess whether or not an individual should be qualified and certified who does perform NOT, but monitors and evaluates NOT?

 
 
 
 

4.

Which of the following statements is NOT true?

 
 
 
 

5.

The following is a statement in SNT-TC-1A, “It is recognized that these guidelines may not be appropriate for certain employers; circumstances, and/or applications.” What should be done if the guidelines are not appropriate?

 
 
 
 

6.

Based on the foregoing discussion, answer the following questions relating to SNT-TC-1A and the administration of a qualification and certification program in NDT.
Which of the following statements is true concerning the usage of SNT-TC-1A?

 
 
 
 

7.

The SNT-TC-1A Interpretation Panel will respond to inquiries about SNT-TC-1A. The inquiry must be:

 
 
 
 

8.

Which of the following statements is true?

 
 
 
 

9.

With regard to the training of NDT personnel, the employer:

 
 
 
 

10.

SNT-TC-1A is intended as a guideline for employers:

 
 
 
 

11.

General Applications of Various NDT Methods
Acoustic Emission Testing (AE)
Background noise can be reduced by:

 
 
 
 

12.

Threshold settings are determined by:

 
 
 
 

13.

The acoustic emission signal amplitude is related to:

 
 
 
 

14.

The term “counts” refers to:

 
 
 
 

15.

The Kaiser effect is useful in distinguishing:

 
 
 
 

16.

The most common range of acoustic emission testing is:

 
 
 
 

17.

Discontinuities that are readily detectable by acoustic emission testing are:

 
 
 
 

18.

The total energy loss of a propagating wave is called:

 
 
 
 

19.

The Kaiser effect refers to:

 
 
 
 

20.

The felicity effect is useful in evaluating:

 
 
 
 

21.

Electromagnetic Testing (ET)
At a fixed test frequency, in which of the following materials will the eddy current penetration be greatest?

 
 
 
 

22.

The penetration of eddy currents in a conductive material is decreased when the:

 
 
 
 

23.

In eddy current testing, the specimen is coupled to the test coil by:

 
 
 
 

24.

In eddy’s current testing, lACS is a recognized abbreviation for:

 
 
 
 

25.

The magnetic field generated by eddy currents induced in a test specimen:

 
 
 
 

26.

Eddy currents are circulating electrical currents induced in conductive materials by:

 
 
 
 

27.

The method used to generate eddy currents in a test specimen by means of a coil can most closely be compared with the action of a:

 
 
 
 

28.

Eddy’s current testing relies on the principle of:

 
 
 
 

29.

When the electrical current in an eddy current coil reverses direction, the:

 
 
 
 

30.

In order to generate measurable eddy currents in a test specimen, the specimen must be:

 
 
 
 

31.

Leak Testing (LT)
In an evacuated system, the 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:

 
 
 
 

32.

All leak detection methods are dependent upon:

 
 
 
 

33.

If the sensitivity of the halogen leak detector is constant throughout a test, which of the following is true upon completion of the test?

 
 
 
 

34.

Assuming no significant leakage, if the temperature increased during a pressure drop leak test, the pressure in the system under test would:

 
 
 
 

35.

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?

 
 
 
 

36.

Which of the following systems or components are candidates for leak testing?

 
 
 
 

37.

A helium mass spectrometer is used in which of the following NDT method(s)?

 
 
 
 

38.

Which of the following is a technique of leak testing?

 
 
 
 

39.

Potentially, the most sensitive leak testing technique is the:

 
 
 
 

40.

Establishing differential pressure between the test object and environment is an essential element in which of the following NDT methods?

 
 
 
 

41.

Liquid Penetrant Testing (PT)
A problem with retesting a specimen that has been previously tested using a liquid penetrant is that:

 
 
 
 

42.

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?

 
 
 
 

43.

Which of the following penetrant systems is generally considered the least sensitive?

 
 
 
 

44.

The most widely accepted method for removing excessive water-washable penetrant from the surface of a test specimen is by:

 
 
 
 

45.

A red penetrant indication against a white background is most likely to be seen when:

 
 
 
 

46.

The tendency of a liquid penetrant to enter a discontinuity is primarily related to:

 
 
 
 

47.

Liquid penetrant testing is a nondestructive test that can be used for:

 
 
 
 

48.

Which of the following is not a characteristic that applies to liquid penetrant testing?

 
 
 
 

49.

The property of a dye used in penetrant materials to emit light of a range of wavelengths different from the wavelength of light that excites the emission is called:

 
 
 
 

50.

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:

 
 
 
 

51.

Magnetic Particle Testing (MT)
How is the inside diameter of a cylinder best magnetized?

 
 
 
 

52.

Inspecting a part by applying the magnetic particle suspension while the current is flowing is called the:

 
 
 
 

53.

Which of the following is a major disadvantage of using the prod method?

 
 
 
 

54.

In which magnetizing method is the current passed directly through the part, thereby setting up a magnetic field at right angles to the current flow?

 
 
 
 

55.

Circular magnetization is useful in the detection of:

 
 
 
 

56.

Which of the following materials cannot be tested by magnetic particle techniques?

 
 
 
 

57.

Materials that are strongly attracted to a magnet are called:

 
 
 
 

58.

Magnetic lines of force (magnetic fields) are oriented in what direction in relation to. the direction of the magnetizing current?

 
 
 
 

59.

Magnetizing flux is a term that relates to:

 
 
 
 

60.

Subjecting a part to a magnetic field that is constantly reversing in polarity and gradually diminishing in strength accomplishes which of the following?

 
 
 
 

61.

Neutron Radiographic Testing (NR)
The most suitable films for producing neutron radiographs are:

 
 
 
 

62.

Which of the following neutron radiography converter foils cannot be used for the transfer or indirect radiography?

 
 
 
 

63.

Neutron radiography using the transfer method requires that the imaging screen:

 
 
 
 

64.

The primary radiation mechanism for darkening X-ray film when the direct neutron radiography process is used with gadolinium screens is:

 
 
 
 

65.

Material that slows down neutrons is called:

 
 
 
 

66.

A normally desirable feature of a thermal neutron beam for neutron radiography is:

 
 
 
 

67.

The highest intensity sources of thermal neutrons are:

 
 
 
 

68.

Neutrons for fast-neutron radiography are obtainable from:

 
 
 
 

69.

A radioactive source used for neutron radiography is:

 
 
 
 

70.

The energy of the neutron is expressed in which of the following units of measurement?

 
 
 
 

71.

Radiographic Testing (RT)
The fact that gases, when bombarded by radiation, ionize and become electrical conductors makes them useful in:

 
 
 
 

72.

The difference between the densities of two areas of a radiograph is called:

 
 
 
 

73.

Common sources of neutrons for neutron radiography are:

 
 
 
 

74.

Of the following, the source providing the most penetrating radiation is:

 
 
 
 

75.

The energy of gamma rays is expressed by which of the following units of measurement?

 
 
 
 

76.

The penetrating ability of an X-ray beam is governed by:

 
 
 
 

77.

Two X-ray machines operating at the same nominal kilovoltage and milliamperage settings:

 
 
 
 

78.

Which of the following X-ray generators would produce the narrowest cone of X-radiation?

 
 
 
 

79.

Short wavelength electromagnetic radiation produced during the disintegration of nuclei of radioactive substances is called:

 
 
 
 

80.

Almost all gamma radiography is performed with:

 
 
 
 

81.

Thennal/infrared Testing (IR)
Infrared thermal detectors:

 
 
 
 

82.

The spectral band in which glass transmits infrared radiation most efficiently is the:

 
 
 
 

83.

If a surface has an emissivity of 0.35 and a reflectivity of 0.45, its transmissivity would be:

 
 
 
 

84.

A graybody surface with an emissivity of 0.04 would be:

 
 
 
 

85.

As a surface cools, the peak of its radiated infrared energy:

 
 
 
 

86.

Thermal resistance is:

 
 
 
 

87.

Conductive heat transfer cannot take place:

 
 
 
 

88.

The infrared/thermal energy emitted from a target surface:

 
 
 
 

89.

Thermal radiation reaching the surface of a thermally opaque object will only be:

 
 
 
 

90.

The following spectral band is included in the infrared spectrum:

 
 
 
 

91.

Ultrasonic Testing (UT)
The display on most basic pulse-echo ultrasonic instruments consists of:

 
 
 
 

92.

Which of the following will create a resonance condition in a specimen?

 
 
 
 

93.

The ability of transducers to detect echoes from small discontinuities is a definition for:

 
 
 
 

94.

In general. shear waves are more sensitive to small discontinuities than longitudinal waves for a given frequency and in a given material because:

 
 
 
 

95.

When inspecting coarse-grained materials, which of the following frequencies will generate a sound wave that will be most easily scattered by the grain structure?

 
 
 
 

96.

Ultrasonic waves propagate through test materials in the form of:

 
 
 
 

97.

When an ultrasonic beam passes through the interface of two dissimilar materials at an angle, a new angle of sound travel takes place in the second material due to:

 
 
 
 

98.

The gradual loss of energy as ultrasonic vibrations travel through material is referred to as:

 
 
 
 

99.

Ultrasonic velocities are different for different materials. These differences are primarily caused by differences in the materials :

 
 
 
 

100.

Ultrasonic energy for immersion testing is transmitted to the test object as a compressional wave because:

 
 
 
 

101.

Vibration Analysis Testing (VA)
Visual Testing (VT)
The IES is the:

 
 
 
 

102.

The spectral range of visible response in humans is:

 
 
 
 

103.

What is the name of the condition of eye adaptation to a dark environment?

 
 
 
 

104.

The minimum lighting condition recommended for detecting small cracks in welds is:

 
 
 
 

105.

The angle the eye makes with respect to the normal inspection surface should not:

 
 
 
 

106.

What is considered the typical spectral range of visible light for most humans?

 
 
 
 

107.

What element of the eye functions the same as the photographic plane of a camera?

 
 
 
 

108.

A surface has diffuse reflection when:

 
 
 

109.

The resolution of the human eye at a distance of about 31 cm (12 in.) is nearest:

 
 
 
 

110.

For routine direct visual inspection, the eye should be located at a distance:

 
 
 
 

Question 1 of 110

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In this Practice Test we are covering all the technique questions with answers given in the list below:

General Applications of Various NDT Methods:

  • Acoustic Emission Testing (AE) Level III
  • Electromagnetic Testing (ET) Level III
  • Leak Testing (LT) Level III
  • Liquid Penetrant Testing (PT) Level III
  • Magnetic Particle Testing (MT) Level III
  • Neutron Radiographic Testing (NR) Level III
  • Radiographic Testing (RT) Level III
  • TherrnallInfrared Testing (IR) Level III
  • Ultrasonic Testing (UT) Level III
  • Vibration Analysis Testing (VA) Level III
  • Visual Testing (VT) Level III

Materials and Processes for NDT Technology:

  • Relation of NDT to Manufacturing
  • Introduction to Manufacturing Technology
  • Properties of Materials
  • The Nature of Materials and Solid State Changes in Metals
  • Ferrous Metals
  • Nonferrous Metals and Plastics
  • The Nature of Manufacturing
  • The Casting Process
  • The Welding Process
  • Welding Processes and Design
  • Plastic Flow
  • Millwork, Forging, and Powder Metallurgy
  • Press working of Sheet Metal
  • Machining Fundamentals
  • Miscellaneous Processes
  • Surface Finishing
  • Inspection

Here You can Take the Free ASNT LEVEL I, II, and III Practice Test with Latest Questions

ASNT NDT LEVEL I ASNT NDT LEVEL II ASNT NDT LEVEL III
LPT Level I LPT Level II LPT Level III
MT Level I MT Level II MT Level III
RT Level I RT Level II RT Level III
UT Level I UT Level II UT Level III
ASNT SNT-TC-1A Level I ASNT SNT-TC-1A Level II ASNT SNT-TC-1A Level III

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