Download Visual Testing VT Level I Exam Prep: Updated Q&A and more Exams Electrical and Electronics Engineering in PDF only on Docsity!
Updated Q&A.
Overlap - <<Answer: ✅✅In welding, weld metal protrusion beyond the fusion line at the weld toe is called: a. Overlap b. Undercut c. Reinforcement d. Incomplete fusion The employer - <<Answer: ✅✅In accordance with SNT-TC-1A, certification of visual NDT personnel is the responsibility of: a. ASNT b. The employer c. The NDT Level III d. An outside agency Elastic deformation - <<Answer: ✅✅The ability of metal to return to its original size and shape after being loaded and unloaded is called: a. Plastic deformation b. Elastic deformation c. Tensile strength d. Stress-strain deformation Stress corrosion cracking - <<Answer: ✅✅Cracking under the combined action of corrosion and tensile stress is referred to as: a. Fatigue cracking b. Creep cracking c. Stress corrosion cracking d. Tensile stress cracking Undercut - <<Answer: ✅✅A groove formed at the toe or root of a weld when the base metal is melted away and left unfilled by weld metal is referred to as: a. Underfill
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b. Cold lap c. Crack d. Undercut Reduction in pump efficiency - <<Answer: ✅✅Excessive clearance in pumps will result in: a. Accelerated corrosion b. Increased cavitation c. Reduction in pump efficiency d. Increased impeller wear Valve - <<Answer: ✅✅A mechanical device that controls flow into, inside of, or out of a piping system is called a: a. Blind flange b. Pump c. Valve d. Flow controller Casting discontinuities - <<Answer: ✅✅Hot tears, inclusions, porosity, and cold shuts are: a. Forging discontinuities b. Casting discontinuities c. Welding discontinuities d. Processing discontinuities Depth of field - <<Answer: ✅✅The distance a magnifier can be moved toward or away from a subject while keeping it in good focus is called: a. Depth of field b. Field of view c. Focal spot d. Magnification distance
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c. 4x-10x d. 5x-15x Replication - <<Answer: ✅✅A method used for copying the topography of a surface that cannot be moved or one that would be damaged in transferal is called: a. NDT b. In-situ NDT c. Replication d. Surface metallography Both A and C - <<Answer: ✅✅Replication is used for: a. The analysis of fracture surfaces and microstructure b. The evaluation of yield and tensile strengths of metals c. The evaluation of corrosion damage and wear d. Both A and C All of the above - <<Answer: ✅✅Temperature indicating materials can take the form of: a. Sticks b. Pellets c. Liquids d. All of the above Depth of field - <<Answer: ✅✅As related to photographic techniques for recording visual testing results, the range of distance over which a camera gives satisfactory definition when its lens is in the best focus for a certain specific distance is referred to as: a. Depth of vision b. Depth of field c. Depth of focus d. Field of vision
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All of the above - <<Answer: ✅✅Cameras used in video pipe testing may be transported inside the pipe by: a. Pushing b. Pulling c. Carrying d. All of the above All of the above - <<Answer: ✅✅In general, visual weld inspection is performed: a. Before welding b. During welding c. After welding d. All of the above Partial sampling - <<Answer: ✅✅The testing of certain numbers less than the total in a production run is called: a. Random sampling b. Partial sampling c. Specified sampling d. Random specified sampling Wear - <<Answer: ✅✅The undesirable removal of material from contacting surfaces by mechanical action is referred to as: a. Corrosion b. Erosion c. Wear d. Grinding Corrosion - <<Answer: ✅✅The deterioration of a metal resulting from electrochemical reactions with environment is referred to as: a. Erosion b. Corrosion
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Forgings - <<Answer: ✅✅Bursts, laps, and cracks are discontinuities that are found in: a. Castings b. Welds c. Forgings d. Extrusions Photogrammetry - <<Answer: ✅✅The science of obtained quantitative measurements of physical objects through processes of recording, measuring, and interpreting photographic images is called: a. Photography b. Photometry c. Photogrammetry d. Stereophotography Laminations - <<Answer: ✅✅Steel mill products may have: a. Stress cracks b. Die burns c. Arc drags d. Laminations It produces excessive glare - <<Answer: ✅✅A high-intensity source of light may cause an inspection problem because: a. It produces excessive glare b. It produces considerable heat c. It has a short bulb life d. The lamp head cannot be adjusted Borescope - <<Answer: ✅✅A common inspection instrument that is used to visually inspect internal bore surfaces is a: a. Magnifying glass b. Borescope
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c. Phototube d. Microscope Polarized light - <<Answer: ✅✅Glare can be reduced on an inspection surface by using: a. Visible light b. Spectral light c. Screens d. Polarized light Lap - <<Answer: ✅✅A discontinuity associated with metal overflow during forging is called a: a. Seam b. Flake c. Lap d. Lamination Scab - <<Answer: ✅✅A jagged, nonintegrally bonded piece of metal that leaves a depression in another metal after it is removed, is called a: a. Seam b. Blister c. Scab d. Gouge Hue, purity, and brightness - <<Answer: ✅✅The physical characteristics of color are: a. Hue, purity, and brightness b. Wavelength, spectrum, and contrast c. Acuity, perception, and distance d. None of the above Rolled in scale - <<Answer: ✅✅When scale is partially rolled into the surface of a steel plate it is called:
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d. Maximum head All of the above - <<Answer: ✅✅Wear due to erosion/corrosion on a valve is typically found in: a. Valve body b. Valve seating area c. Valve disk d. All of the above All of the above - <<Answer: ✅✅Which of the following is a type of component support? a. Plate and shell b. Linear c. Component support standards d. All of the above Controls flow - <<Answer: ✅✅A valve is a mechanical device that: a. Moves fluids or gases b. Controls flow c. Is rarely used in a nuclear power plant d. Is always welded into a system Restraints - <<Answer: ✅✅Devices that limit or allow no motion in one or more directions are called: a. Hangers b. Supports c. Restraints d. Clamps All of the above - <<Answer: ✅✅Bolting failures typically occur at: a. The thread root area b. The head to shank area
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c. Nicks or gouges d. All of the above Dynamic and displacement - <<Answer: ✅✅The two major categories of pumps are: a. Static and friction head b. Dynamic and displacement c. Single stage and multi-stage d. Turbine and condensate Pump - <<Answer: ✅✅A mechanical device that raises, transfers, or pressurizes fluids is a(n): a. Valve b. Snubber c. Electric motor d. Pump Laminations - <<Answer: ✅✅A discontinuity that is not associated with welds is: a. Undercut b. Overlap c. Laminations d. Underfill All of the above - <<Answer: ✅✅During an examination of a groove weld, which of the following dimensions is normally measured? a. The root opening b. Weld reinforcement c. Base material thickness d. All of the above The area opposite of the arrow - <<Answer: ✅✅A welding symbol over the reference line refers to:
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Flexible elastomer - <<Answer: ✅✅The closure element of a diaphragm valve is called: a. Weir b. Flexible elastomer c. Bonnet d. Disk Integral attachments - <<Answer: ✅✅Component supports are divided into groups. Which of the following is not considered to be a group of component supports? a. Hangers b. Supports c. Integral attachments d. Snubbers Side wall lack of fusion - <<Answer: ✅✅During a visual examination, a welding discontinuity that could not be detected would be: a. Undercut b. Underfill c. Cracks d. Side wall lack of fusion All of the above - <<Answer: ✅✅For component supports, the principal movement axis is: a. Horizontal axis b. Vertical axis c. Longitudinal axis d. All of the above Hanger - <<Answer: ✅✅A device that is typically installed vertically with the support member in tension is called a: a. Support
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b. Restraint c. Snubber d. Hanger Body - <<Answer: ✅✅A valve sub-assembly that is considered to be part of the pressure vessel assembly is called the: a. Drive b. Stem c. Body d. Disk Pump - <<Answer: ✅✅A device that raises, transfers, or pressurizes fluids by pressing, forcing, or throwing the fluid through apertures or pipes is called a: a. Valve b. Pump c. Snubber d. Bolt Ball valves - <<Answer: ✅✅Valves that use rotational motion to make a seal are called: a. Ball valves b. Gate valves c. Globe valves d. All of the above All of the above - <<Answer: ✅✅Service-induced discontinuities can be the result of: a. Vibration b. Stress risers c. Corrosion d. All of the above
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b. Uncontrolled factors c. Production factors d. Classic distress factors Fiberoptic borescope - <<Answer: ✅✅To examine areas around bends inside a pipe section, the visual examiner uses a: a. Telescope b. Fiberoptic borescope c. Borescope d. Microscope 0.02 - <<Answer: ✅✅On a thickness gage, twenty thousandths of an inch is represented by: a. 0. b. 0. c. 0. d. 0. Hot tears - <<Answer: ✅✅In a casting, a visual examiner could expect to find: a. Laminations b. Stringers c. Bursts d. Hot tears C - <<Answer: ✅✅Porosity is: (Answer with A, B, C, or D) a. Material used during the welding process b. Gas entrapped below the surface of a material c. Gas entrapped below or at the surface of a material d. Foreign crystallized material entrapped below the surface of a material
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At either the beginning or the end of the weld - <<Answer: ✅✅A visual examiner could expect to find a crater crack: a. At the beginning of the weld b. Somewhere between the beginning and the end of the weld c. At either the beginning or the end of the weld d. At the end of the weld Crater crack - <<Answer: ✅✅A discontinuity with a small star shaped pattern where a weld starts or stops is usually an indication of: a. Surface porosity b. Undercut c. Crater crack d. Slag Insufficient penetration - <<Answer: ✅✅During the visual examination of a full penetration double bevel weld joint, visual examination cannot locate: a. Undercut b. Underfill c. Crater cracks d. Insufficient penetration All of the above - <<Answer: ✅✅The initiation of a fatigue crack could occur at: a. Weld toes b. Notches c. Section changes d. Thread roots e. All of the above B - <<Answer: ✅✅A welding discontinuity typically referred to as distortion is caused by: (Answer with A, B, C, or D)
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d. All of the above Entry port size - <<Answer: ✅✅The maximum diameter of a borescope that can be used for the test is determined by: a. Object path b. Entry port size c. Objective distance d. Direction of view Surface comparator - <<Answer: ✅✅A device that provides the means for comparing a test surface to a standard surface finish is called a: a. Measuring magnifier b. Surface calibrator c. Surface comparator d. Surface magnifier Angulated borescope - <<Answer: ✅✅An instrument that can be equipped with forward oblique, right angle, or retrospective visual systems is called a(n): a. Angulated borescope b. Microscope c. Panoramic borescope d. Stereoscope Macroetching - <<Answer: ✅✅The use of chemical solutions to attack material surface in order to improve the visibility of discontinuities for visual inspection at normal and low power magnification is called: a. Microetching b. Macroetching c. Replication d. Vibroetching
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Video imaging device - <<Answer: ✅✅A "charged couple device chip" is used with a(n): a. Fiberoptic borescope b. Angulated borescope c. Video imaging device d. Profile gage Weldments - <<Answer: ✅✅Cracks, suckback, undercut, and overlap are discontinuities found in: a. Castings b. Forgings c. Extrusions d. Weldments
