Take A Free ASNT NDT VT Level 3 Exam Practice Test – Quiz Course

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Here you can take a free ASNT NDT VT Level 3 Exam Practice with the Latest Visual and Optical Testing Method Level III Questions and Answers

1.

The restriction on the angle between the eye and the test surface for general visual testing should be:

 
 
 
 

2.

According to the Illuminating Engineering Society, the minimum light required for critical work should be:

 
 
 
 

3.

The illumination at a point on a surface in relation to the luminous intensity of the source and the distance between the source and the point varies directly with the intensity and:

 
 
 
 

4.

The term used for dark adaptation vision using only the rods in the retina when differences in brightness can be detected but differences in the hue cannot is called:

 
 
 
 

5.

The measurement of radiant energy in the visible spectrum, based on a standard observer response, is called:

 
 
 
 

6.

The simultaneous comparison of a standard lamp and an unknown light source is called:

 
 
 
 

7.

The light from common sources, particularly light from incandescent lamps, is often compared with light from a theoretical source. This theoretical source is called a:

 
 
 
 

8.

The principal biological effect of infrared radiation is:

 
 
 
 

9.

The intensity of fluorescence in relation to the intensity of the ultraviolet radiation that excites it is:

 
 
 
 

10.

A device that uses synchronized pulses of high-intensity light to permit viewing of objects moving with a rapid periodic motion is called:

 
 
 
 

11.

Luminous energy tests are primarily for testing exposed or accessible surfaces of opaque test objects and for:

 
 
 
 

12.

The function of daylight vision for color and detail is performed by the:

 
 
 
 

13.

The element of light related to the characteristics of tone, purity, and brightness are called:

 
 
 
 

14.

The brightness of a diffusely reflecting colored surface depends on the quantity of incident light and

 
 
 
 

15.

Variable(s) other than lighting and target size that affect visual acuity include:

 
 
 
 

16.

The ability of the eye and brain to work together to discriminate patterns from the background is called:

 
 
 
 

17.

In visual testing, using borescopes with a narrow field of view produces:

 
 
 
 

18.

In visual testing, using borescopes with a wide field of view:

 
 
 
 

19.

A laboratory microscope equipped with a top or vertical illumination to permit viewing of opaque materials is called:

 
 
 
 

20.

Magnification of a borescope optical system depends on the:

 
 
 
 

21.

When performing the catching process, surface finish requirements are determined by the:

 
 
 
 

22.

Pipe crawlers are not considered to be robotic systems because they:

 
 
 
 

23.

High-speed film requires:

 
 
 
 

24.

Camera systems used in a remote internal video test of pipe are available for black and white or color viewing. In comparison, black-and-white systems:

 
 
 
 

25.

In planning for visual testing, a particular frequency or sequence of sample selection is prescribed, such as the selection of every fifth unit starting with the fifth unit. This system is referred to as:

 
 
 
 

26.

Discontinuities associated with welds may be classified as:

 
 
 
 

27.

Documents having a significant influence on public health and safety are sometimes accepted by legislative bodies or Federal regulatory agencies. In those jurisdictions, such documents become law and are referred to as:

 
 
 
 

28.

When particles in a fluid or other carrier slide and roll at a relatively high velocity against a surface, it is called:

 
 
 
 

29.

When high-temperature alloys cannot tolerate contact with liquid metal because high temperatures cause the precipitation of chromium carbide in the grain boundaries, the condition is called:

 
 
 
 

30.

The surface roughness of cold rolled steel determines:

 
 
 
 

31.

A condition that is caused by unintentional rapid heating of the base metal or weld metal and subsequent rapid cooling of the molten material, which results in extremely high heat input and causes localized hardness and cracking, is called:

 
 
 
 

32.

During the visual inspection of the impeller vanes, it was noted that the vanes are exhibiting abnormal wear and are porous. This condition is most likely due to:

 
 
 
 

33.

In a gate valve, the most likely place for erosion and wear are:

 
 
 
 

34.

Corrosion of a metal caused by the concentration of dissolved salts, metal ions, oxygen, or other gasses, which occurs in pockets remote from the principal fluid stream with a resulting build-up of differential cells that ultimately cause deep pitting, is called:

 
 
 
 

35.

Folds of metal forced into the surface of the component during forging, which can vary from a tight straight linear discontinuity to a wide U-shaped indication, are called:

 
 
 
 

36.

During the visual inspection of castings, chills, and chaplets appear as:

 
 
 
 

37.

Magnification of a single lens (in inches) is determined by:

 
 
 
 

38.

The accuracy of distance measurements from photogrammetry is related to:

 
 
 

39.

Visual testing of low-stress applications, such as the sheets of composite material bonded to a honeycomb core may reveal:

 
 
 
 

40.

To determine the maximum percent defect that for the purpose of the sampling test can be considered satisfactory as a process average, using the:

 
 
 
 

41.

When the point of focus is beyond the plane of the retina, this condition is called:

 
 
 
 

42.

To determine the maximum percent defective for the tolerance of an outgoing lot of parts, use:

 
 
 
 

43.

Compact arc sources, metal vapor, and florescent lamps are sources of:

 
 
 
 

44.

When a flexible fiber optic is bent at an angle greater than approximately 45 degrees, the image produced:

 
 
 
 

45.

Erosive wear is caused by:

 
 
 
 

46.

Visible light is defined as that portion of the electromagnetic spectrum with wavelengths between:

 
 
 
 

47.

Most color deficiencies are hereditary and occur in:

 
 
 
 

48.

Color deficiencies can be hereditary and/or acquired. Acquired color deficiencies can include:

 
 
 
 

49.

To form reliable images, the lens of the eye focuses light rays onto the:

 
 
 
 

50.

The condition when the point of focus is short of the retina is called:

 
 
 
 

51.

When a primary color is mistaken for another primary color, this is an error in:

 
 
 
 

52.

Exposure to high-frequency visible light at intensities and durations that may damage the retina, and docs do not elevate retinal temperatures enough to cause thermal hazard is called:

 
 
 
 

53.

The temperature at which a blackbody must be operated so that its output is the closest approximation to a perfect color match with the output of the selective radiator is called:

 
 
 
 

54.

The instrument used to measure the radiation power of specified frequencies is called a:

 
 
 
 

55.

The angle of vision and the distance of the eye from the test surface determine the minimum angular separation of two points resolvable by the eye. This is known as the eyes:

 
 
 
 

56.

A tool that uses the wavelength of light as a unit to measure the surface contour is called:

 
 
 
 

57.

The principle of solid-state image devices is based on:

 
 
 

58.

The ratio between stress and strain in a material deformed within its elastic range is called:

 
 
 
 

59.

When a metal is at an elevated temperature, the:

 
 
 
 

60.

Erosive wear of materials can be recognized by:

 
 
 
 

61.

A form of pitting caused by vibration and movement in a liquid environment is called:

 
 
 
 

62.

A type of corrosion caused by the electrochemical differences between contacting metals or a metal and its environment is called:

 
 
 
 

63.

The depletion of chromium from the grain boundaries of metals due to the rapid combination of carbon with chromium is called:

 
 
 
 

64.

Gradual and permanent change of shape in a metal under constant load, usually at elevated temperature is called:

 
 
 
 

65.

In the steel industry, the term “surface measurement” covers:

 
 
 
 

66.

For concave fillet welds, the size of the weld as compared to the leg of the weld is:

 
 
 
 

67.

In convex fillet welds, the shortest distance from the root of the weld to the face of the weld is called:

 
 
 
 

68.

A typical location for fastener failures is:

 
 
 
 

69.

Machine vision technology is used in the automobile industry to:

 
 
 
 

70.

The gage used in the visual testing of threads in oil country tubular goods is called:

 
 
 
 

71.

One of the main principles of visual and optical testing is described by:

 
 
 
 

72.

When documenting the results of a visual examination, reducing the aperture opening on a photographic lens results in:

 
 
 
 

73.

Several factors can reduce the image contrast of a display (cathode ray tube). A source of this interference could be:

 
 
 
 

74.

When visual inspection of finished weldments is required, the inspector should:

 
 
 
 

75.

When visually accepting a finished weld, the following factor(s) should be considered:

 
 
 
 
 

76.

An indication of a crater crack at the start-stop of a weld was observed. This condition:

 
 
 
 

77.

The actual size of a groove weld is:

 
 
 
 

78.

The visual inspector evaluating the welding process should consider the following factor(s):

 
 
 
 

79.

Visual surface condition for the final acceptance of weldments:

 
 
 
 

80.

A material that emits light when excited by illuminated areas of a test object is said to be:

 
 
 
 

81.

Two aspects of a display (cathode ray tube) that are most important to visual interpretation are:

 
 
 
 

82.

A type of corrosion that occurs under fasteners such as bolted or riveted joints if moisture can penetrate and remain is called:

 
 
 
 

83.

A type of wear caused by the high-pressure impact that lifts large fragments from a metal surface is called:

 
 
 
 

84.

A type of wear that frequently occurs in stationary joints that are fixed from shrinking or pressing by interference fits or bolts, pins, rivets, or other mechanisms and also at various contact points in antifriction or rolling elements known as:

 
 
 
 

85.

Devices such as phototubes or multiplier phototubes that emit electrons under the influence of light are called:

 
 
 
 

86.

During visual fillet weld examination, the inspector would use:

 
 
 
 

87.

Many video probe systems use a CCD to collect the light image at the inspection site. CCD stands for:

 
 
 
 

88.

A groove melted in the base metal at the toe of the weld during the welding process is called:

 
 
 
 

89.

A borescope transmits the light image collected at the inspection site:

 
 
 
 

90.

Seams and laps are longitudinal base metal discontinuities found in:

 
 
 
 

91.

Forged products display two major types of discontinuities:

 
 
 
 

92.

Which of the following welding methods uses a gas-shielded continuous consumable electrode?

 
 
 
 

93.

Which of the following welding methods could produce a tungsten inclusion discontinuity?

 
 
 
 

94.

A groove weld symbol located on top of the reference line of the welding symbol indicates that the weld is to be located on:

 
 
 
 

95.

The graduations etched on the thimble of a micrometer arc in:

 
 
 
 

96.

In a normal, healthy eye the incoming light is focused on the:

 
 
 
 

97.

When examining objects of substantial size:

 
 
 
 

98.

The component of the eye that responds to light intensity and gives the eye its color is the:

 
 
 
 

99.

The result of gasses becoming trapped in molten metal during freezing is called:

 
 
 
 

100.

The element of the welding symbol where specifications or other reference items may be placed is called the:

 
 
 
 

101.

Incomplete penetration occurs at the:

 
 
 
 

102.

The best equipment to use to measure the inside diameter of a pipe or tube would be a:

 
 
 
 

103.

A joint that is considered to be two members to be joined lying in parallel on the same plane is called a:

 
 
 
 

104.

Laminations would most likely occur in:

 
 
 
 

105.

The main difference between a borescope and a fiberscope is that:

 
 
 
 

106.

If there is a substantial thickness transition in casting, the result may be:

 
 
 
 

107.

Porosity, pipe, and other inclusions remaining in the original ingot after cropping may be modified after rolling into the plate form. If this type of discontinuity is not fused together during rolling, it becomes:

 
 
 
 

108.

Shielding gas used in the GTAW welding process is used to:

 
 
 
 

109.

To provide color to the light used with the video probe which of the following could be used:

 
 
 
 

110.

Forged products are manufactured using:

 
 
 
 

Question 1 of 110

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Free ASNT NDT VT Level III Practice Test 2026 – Visual Testing Questions and Answers

Prepare for the ASNT NDT Visual Testing (VT) Level III Certification Exam with free online practice questions, answers, updated exam information, and self-study resources.

Are you preparing for the ASNT NDT VT Level 3 Exam and looking for reliable practice questions to improve your understanding of Visual Testing and Optical Inspection?

UpWeld offers a free online ASNT VT Level III Practice Test designed to help NDT professionals review important inspection principles, become familiar with multiple-choice questions, and identify areas requiring further study.

Whether you are an experienced NDT inspector, welding inspector, quality control professional, or technician preparing for Level III certification, this practice quiz is a useful addition to your examination preparation.

Take the Free ASNT VT Level III Practice Test Now

What Is ASNT NDT VT Level III Certification?

ASNT NDT VT Level III is an advanced certification in Visual Testing (VT), one of the fundamental methods of nondestructive testing (NDT).

Visual Testing uses direct observation or optical equipment to examine the accessible surfaces of materials, welds, structures, and industrial components for discontinuities and other conditions.

VT may involve equipment such as magnifiers, mirrors, borescopes, videoscopes, and dimensional measuring instruments.

An ASNT NDT VT Level III professional may be responsible for developing and approving inspection procedures, evaluating inspection techniques, interpreting applicable codes and standards, supervising NDT personnel, and managing visual inspection activities.

Visual Testing is widely used in:

  • Welding inspection and fabrication

  • Pressure vessels and piping systems

  • Oil and gas facilities

  • Aerospace and automotive manufacturing

  • Structural steel inspection

  • Power generation and industrial maintenance

  • In-service equipment inspection

Visual Testing is primarily used for surface examination. Subsurface discontinuities generally require other appropriate NDT methods.

ASNT NDT VT Level III Exam Pattern 2026

According to ASNT’s published examination information, candidates pursuing initial ASNT NDT Level III certification must pass the NDT Basic examination and at least one method examination.

Examination Questions Duration
ASNT NDT Level III Basic 135 4 hours
ASNT VT Level III Method 90 2 hours

Both are computer-based multiple-choice examinations.

ASNT VT Level III Examination Syllabus and Important Topics

The ASNT Visual Testing Level III examination covers advanced knowledge of visual inspection principles, inspection equipment, testing applications, interpretation, evaluation, and reporting.

The following groups summarize important areas from the official ASNT examination outline.

1. Fundamentals of Visual and Optical Testing

Study the scientific principles that influence the reliability of visual inspection.

Important topics include:

  • Human vision and visual acuity

  • Properties and behavior of light

  • Illumination and lighting conditions

  • Reflection, contrast, and resolution

  • Optical magnification

  • Environmental and ambient conditions

  • Material surface characteristics

  • Factors affecting inspection sensitivity

2. Visual Testing Equipment and Accessories

Candidates should understand the operating principles, applications, advantages, and limitations of common VT instruments.

Important equipment includes:

  • Magnifiers and microscopes

  • Mirrors and optical accessories

  • Borescopes and videoscopes

  • Video inspection systems

  • Machine vision equipment

  • Dimensional measuring instruments

  • Surface comparators

  • Replication materials

  • Temperature-indicating devices

  • Lasers and chemical aids

Understanding equipment selection and the factors affecting measurement accuracy is particularly important.

3. Material Discontinuities and Industrial Applications

Visual Testing is used during material production, manufacturing, fabrication, and service.

Study the recognition and evaluation of discontinuities associated with:

  • Castings and forgings

  • Rolled and formed products

  • Welding and joining processes

  • Fabricated components

  • Heat treatment and manufacturing processes

  • In-service deterioration

  • Corrosion and surface degradation

  • Coatings and surface finishing

Candidates should understand the difference between a discontinuity and a defect. A discontinuity is not necessarily rejectable; its acceptability depends on the applicable requirements.

4. Interpretation, Evaluation, and Acceptance Criteria

Level III candidates must understand how to evaluate inspection findings correctly.

Topics include:

  • Classification of visual indications

  • Relevant and non-relevant indications

  • Measurement of discontinuity length, width, and depth where practical

  • Effect of surface condition on inspection reliability

  • Applicable acceptance and rejection criteria

  • Inspection sampling and scanning techniques

  • Factors influencing examination results

  • Inspection reports and documentation

5. Inspection Procedures, Personnel, and Safety

Preparation should also cover technical responsibilities associated with inspection management, such as:

  • Developing visual inspection procedures

  • Selecting appropriate inspection techniques

  • Verifying equipment suitability

  • Evaluating applicable codes and specifications

  • Personnel qualification and human factors

  • Documenting examination results

  • Maintaining inspection records

  • Workplace safety and inspection precautions

Important: The topics above summarize the official examination outline. Candidates should consult the latest ASNT body of knowledge rather than relying exclusively on practice questions.

Who Is Eligible for ASNT NDT Level III Certification?

ASNT establishes eligibility requirements based on education and relevant NDT work experience.

Education Minimum Relevant Experience
Four-year degree in engineering or physical science 12 months / 252 days
At least two completed academic years of engineering or physical science study 24 months / 504 days
No college education 48 months / 1,008 days

The qualifying experience must meet ASNT requirements, including experience in the method being sought under qualified supervision. A qualifying workday is at least seven hours.

Applicants must provide supporting education and experience documentation, subject to ASNT review.

For complete eligibility and application requirements, visit ASNT NDT Level III Certification.

Take the Free ASNT VT Level III Exam Practice Test

UpWeld’s free Visual Testing Level III practice quiz allows candidates to review multiple-choice questions covering important VT knowledge areas.

The practice test can help you:

  1. Review fundamental visual and optical testing concepts.

  2. Improve your familiarity with technical inspection terminology.

  3. Practice answering multiple-choice questions.

  4. Identify topics requiring further study.

  5. Develop confidence in interpreting technical questions.

  6. Assess your preparation before scheduling the official examination.

After completing the quiz, review the provided answer key and study the technical concepts behind any incorrect responses.

Start the Free ASNT NDT VT Level III Quiz

How to Prepare for the ASNT VT Level III Exam in 2026

Passing a Level III examination requires more than memorizing answers. Candidates must understand inspection principles and apply technical knowledge to realistic situations.

A structured preparation approach can improve your readiness.

Step 1. Review the Official Examination Outline

Begin with the latest ASNT VT Level III examination syllabus. Identify all major topics and compare them with your existing work experience.

Step 2. Study the Applicable ASNT References

Important references may include:

  • ASNT Visual Testing study resources and handbooks

  • ANSI/ASNT CP-105 topical outlines

  • ASNT Recommended Practice SNT-TC-1A

  • ANSI/ASNT CP-189

  • Relevant visual testing procedures and industry codes

2026 update: For the NDT Level III Basic examination, ASNT states that candidates testing after January 1, 2026, should use the 2024 editions of SNT-TC-1A and CP-189 among the recommended references.

Step 3. Practice Visual Testing Questions

Answer questions covering lighting, optical instruments, visual discontinuities, material processes, inspection techniques, and evaluation.

Focus on understanding why an answer is correct instead of memorizing the option.

Step 4. Complete Timed Mock Examinations

Practice completing 90 questions within two hours to develop your examination pacing.

Use practice-test results to identify weak areas, then revisit the relevant technical references.

Step 5. Review Practical Inspection Applications

Study real examples of weld discontinuities, corrosion, surface damage, dimensional measurements, inspection documentation, and code-based evaluation.

This helps connect theoretical knowledge with Level III responsibilities.

Buy the ASNT VT Level III Exam Question Bank – 2,000+ Practice Questions

Looking for additional ASNT Visual Testing Level III examination preparation material?

UpWeld offers an optional ASNT VT Level III Self-Study Question Bank for candidates who want to practice beyond the free online quiz.

ASNT VT Level III Self-Study Package

Question Bank: Advertised collection of 2,000+ practice questions

Price: $25.00 USD

The collection is intended for independent revision across VT theory, inspection equipment, testing applications, interpretation, evaluation, and numerical concepts.

The advertised study package features include:

  • Multiple-choice examination practice

  • Questions covering theoretical and applied concepts

  • Self-study and revision resources

  • Online practice and review options

  • Printable study material

  • Additional learning guidance

Please confirm the current package contents, available formats, and delivery arrangements before purchasing.

How to Purchase

Email: upweld.org@gmail.com

WhatsApp: Contact UpWeld on WhatsApp

The UpWeld question bank is an independent examination-preparation resource. It is not an official ASNT examination product, does not contain verified live examination questions, and does not guarantee certification or a passing score.

Other Free ASNT NDT Level III Practice Tests

Preparing for additional NDT certifications? Explore these free practice resources on UpWeld.

NDT Examination Free Practice Test
Liquid Penetrant Testing (PT/LPT) Level III Practice Questions and Answers
Magnetic Particle Testing (MT) Level III Practice Questions and Answers
Radiographic Testing (RT) Level III Practice Questions and Answers
Ultrasonic Testing (UT) Level III Practice Questions and Answers
ASNT NDT Level III Basic Basic Examination Practice Test
Other NDT Exam Resources Explore UpWeld

 

Start Your ASNT NDT VT Level III Exam Preparation Today

Preparing for the ASNT Visual Testing Level III certification requires technical knowledge, inspection experience, familiarity with applicable standards, and regular practice.

UpWeld’s free VT Level III practice test offers a convenient way to review important topics and evaluate your understanding before the official examination.

Take your free practice test today:

Free ASNT NDT VT Level III Exam Practice Test – Questions and Answers

For additional self-study resources or information about the question-bank package, contact upweld.org@gmail.com or WhatsApp.

Disclaimer: UpWeld is an independent study-resource provider and is not affiliated with or endorsed by ASNT. Certification rules, fees, and examination outlines are determined by ASNT and may change. Always verify current requirements through official ASNT sources.

Frequently Asked Questions About ASNT VT Level III
1. How many questions are in the ASNT VT Level III Exam?

The ASNT NDT Visual Testing Level III Method examination contains 90 multiple-choice questions, with two hours allowed for completion.

2. Is the ASNT NDT Level III Basic Exam required?

Yes. Candidates pursuing their initial ASNT NDT Level III certification must pass the Basic examination and at least one method examination. Candidates who have already satisfied the Basic requirement should review the applicable ASNT certification rules.

3. Is Visual Testing the same as Optical Testing?

Visual Testing is a recognized NDT method. It includes direct visual examination and examination using optical aids such as magnifiers, mirrors, borescopes, and video inspection equipment.

4. Is the ASNT VT Level III Exam difficult?

The examination evaluates advanced technical knowledge and the ability to apply visual inspection principles. Candidates need a sound understanding of inspection equipment, material discontinuities, procedures, relevant standards, and interpretation.
Consistent practice and thorough study of current references can improve examination readiness.

5. Are UpWeld’s ASNT VT Level III practice questions free?

Yes. UpWeld provides a free online practice test. A larger optional question-bank package is available separately.

6. How long is ASNT NDT Level III certification valid?

ASNT NDT Level III certification follows a five-year recertification cycle. Certificate holders must meet the applicable renewal or recertification requirements.

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