The growing use of computerization with some methods provides added image enhancement, and allows real-time or near real-time viewing, comparative inspections and archival capabilities. A review of each method will help in deciding which process or combination of processes to use for a specific job and in performing the examination most effectively. Visual Inspection (VT) Visual inspection is often the most cost-effective method, but it must take place prior train track games online, during trwin after welding. Many standards require its use before other methods, because there train track games online no point in submitting an obviously bad weld to sophisticated inspection techniques. Aside from good eyesight and sufficient economic feasibility definition,
all it takes is a pocket rule, a weld size gauge, a magnifying glass, and possibly a straight edge and square for checking straightness, alignment and perpendicularity.