Why is it good practice to periodically check that turnbuckles (rigging screws) haven't seized, even if the rig tension itself seems fine?

A. Turnbuckles never seize once correctly installed, regardless of age or environment

B. A seized turnbuckle can't be adjusted when it actually needs to be — for retuning the rig, or in an emergency where quickly slacking or tightening a stay matters — and seizing is a real, common risk from corrosion or lack of use, particularly in a marine environment, which is why working them (or at least checking they still turn) periodically is worthwhile even when no adjustment is currently needed

C. Turnbuckle seizing is purely a cosmetic issue with no functional consequence

D. Only turnbuckles on wooden-hulled boats are prone to seizing

A. Standing rigging never needs visual inspection between full professional rig surveys

B. A visual and hands-on check running your hand along each wire and swage fitting, feeling for broken strands ("meat hooks") that can snag skin or clothing, and looking closely at swage terminals and clevis pins for cracking, corrosion, or bending — done regularly, this catches many developing problems well before a full professional rig check

C. Rigging checks are only relevant immediately before an ocean passage, never for coastal sailing

D. Standing rigging is designed to never show any visible sign of wear before failure

A. Chafe only ever occurs on rigging over 10 years old

B. Chafe often occurs at specific repeated contact points — through a block, over a spreader tip, at a clutch or jammer — and can progressively weaken a line internally or in a way that isn't obvious from a casual glance at the visible outer sheath, so checking the specific high-wear points (not just the general condition of the line) matters

C. Modern synthetic line materials are entirely immune to chafe damage

D. Chafe is a cosmetic issue only, with no effect on a line's working strength