VISUAL TESTING I & II

Course Overview

This course addresses the required training by documents controlling the certification program, such as NAS-410, SNT-TC-1A, and NavSea Technical Publication T9074-AS-GIB-010/271. Course content conforms to the training subjects listed in ANSI/ASNT CP-105, Standard Topical Outlines for Qualification of Nondestructive Testing Personnel. When combined with laboratory-type hands-on training under the direction of a Level II or Level III, this course will meet the total hours of training required by the applicable certification document listed above.

Upon Completion, Learners Will Have Covered:

• Certification documents, terms of certification documents, and history of visual testing
• Defining visual testing; electromagnetic spectrum; requirements for visual testing; eyesight and features of the eye; visual acuity and color discrimination deficiencies; measurement of visual acuity
• Lighting terms, photometry, physical effects; exam conditions
• Direct and indirect visual examination definition; contrast and definition; Proof of VT capability; ASME Section IX VT exams
• Tools of VT: Fillet weld gages, steel rule, Cambridge gage, Palmgren gauge, Hi-LO gauge, micrometers, loupes, light meter, rigid borescope, borescope magnification, fibrescope, viewing tips of borescopes, field of view of borescopes, automated systems, and manual systems
• Flaw recognition, scanning and probing angle, magnifiers, measurement techniques
• Basic weld joints, weld preparations, weld groove terminology, inspection points for welds, preheat and interpass heat temperatures, weld symbols, fillet weld terminology, weld discontinuities; 5 basic weld processes
• Discontinuity and defect terminology; three classifications of discontinuities; product forms such as ingot, casting, or forging; discontinuities in different product forms; stress risers
• Bolting discontinuities
• Pump examinations, pump discontinuities and operational problems; valve examinations; types of valves
• Component support functions and descriptions, restraints, and snubbers
• Ceramic discontinuities, composite discontinuities, and electronic components examinations
• Material failure processes such as creep, stress corrosion cracking, thermal fatigue, and mechanical failure
• Machine vision
• Codes, specifications, and standards; checklist requirements; procedure requirements

This course meets the recommendations for training as described in SNT-TC-1A.

NOTE: There is RECOMMENDED READING assigned at the beginning of the course. The completion of these assignments in addition to self-study is strongly encouraged and will add to the overall training benefit and time to be credited. It will also better prepare the student for the practical lab/’hands-on” session. It is recommended that the student a log of the self-study time. It is also recommended that the applicable Level III be involved and confirm that the reading and self-study assignments have been completed. This should become a part of the student’s training records which may be used in conjunction with subsequent certifications.

Meet the Instructor

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  Gary Larson

  Gary Larson brings over 40 years of NDT experience across industries including nuclear, aerospace, and manufacturing. He holds ASNT Level III certifications in RT, UT, PT, MT, and VT, along with ACCP credentials. Gary has worked with Sikorsky and Pratt & Whitney, providing inspection and training in multiple methods. He currently consults as a Level III for aerospace and military suppliers and contributes to ASTM’s E07 Committee. His teaching experience includes developing and delivering online NDT courses.