Which diagnostic method is used to detect loose or broken anchor bolts at pipe supports?

Which diagnostic method is used to detect loose or broken anchor bolts at pipe supports?

• A. Visual Inspection
• B. Ultrasonic Testing
• C. Hammer Testing
• D. Radiography

Answer: (C)

When checking pipe supports for loose or broken anchor bolts, you rely on a percussion-based assessment of the connection. By tapping the anchor bolt or the support plate with a hammer, you listen for how the bolt sounds and feel its response. A solid, well-anchored bolt typically produces a crisp, ring-like tone with little movement. If the bolt is loose or broken, the sound becomes dull or dead, and you may notice a lack of expected stiffness or a change in resonance. This method is quick, field-friendly, and can reveal looseness that isn’t obvious just by sight. Visual inspection can catch obvious signs like missing nuts or obvious corrosion, but it can miss concealed looseness. Ultrasonic testing and radiography are aimed at detecting material flaws and internal discontinuities, not the mechanical integrity of a bolt connection, so they aren’t the most effective for identifying loose anchor bolts.

When checking pipe supports for loose or broken anchor bolts, you rely on a percussion-based assessment of the connection. By tapping the anchor bolt or the support plate with a hammer, you listen for how the bolt sounds and feel its response. A solid, well-anchored bolt typically produces a crisp, ring-like tone with little movement. If the bolt is loose or broken, the sound becomes dull or dead, and you may notice a lack of expected stiffness or a change in resonance. This method is quick, field-friendly, and can reveal looseness that isn’t obvious just by sight.

Visual inspection can catch obvious signs like missing nuts or obvious corrosion, but it can miss concealed looseness. Ultrasonic testing and radiography are aimed at detecting material flaws and internal discontinuities, not the mechanical integrity of a bolt connection, so they aren’t the most effective for identifying loose anchor bolts.