Yacht and Small Craft Surveyors Flashcards
7 cards from real SAMS practice questions. Tap to flip, then mark Knew It or Still Learning โ missed cards come back until you master them.
Read the first 7 Yacht and Small Craft Surveyors flashcards as text
When surveying osmotic blistering on a fiberglass hull, which instrument is most appropriate for measuring moisture content?
Answer: Capacitance-type moisture meter
Capacitance-type moisture meters are the standard tool for non-destructive assessment of moisture content in fiberglass laminates.
A surveyor finds that a vessel's keel bolts are made of silicon bronze while the keel itself is cast iron. What is the primary concern?
Answer: Galvanic corrosion due to dissimilar metals
Dissimilar metals in contact in the presence of an electrolyte (seawater) create a galvanic cell, causing accelerated corrosion of the less noble metal.
Under the ABYC standards, what is the minimum wire gauge required for DC circuits up to 15 amperes in a marine environment?
Answer: 14 AWG
ABYC E-11 specifies that 14 AWG is the minimum conductor size for most protected DC circuits carrying up to 15 amperes.
When inspecting a vessel's standing rigging, a surveyor notes '1x19' wire rope. What does this designation indicate?
Answer: 19 wires in a single strand construction
1x19 wire rope consists of 19 individual wires twisted into a single strand, providing high strength and low stretch ideal for standing rigging.
A surveyor discovers that a boat's through-hull fitting below the waterline is made of plastic (PVC). What is the correct recommendation?
Answer: Recommend replacement with a seacock and bronze or Marelon fitting
ABYC and SAMS standards require seacocks on below-waterline through-hulls; PVC fittings are not approved for this application due to brittleness and UV degradation risk.
What type of survey is typically conducted when a boat is used as collateral for a marine mortgage?
Answer: Appraisal survey
An appraisal survey establishes fair market value of the vessel, which is required by lenders to confirm adequate collateral for a marine mortgage.
When evaluating a sailboat's stability, which factor most directly relates to its resistance to capsizing?
Answer: Ballast-to-displacement ratio
A higher ballast-to-displacement ratio lowers the center of gravity and increases the righting moment, directly improving resistance to capsizing.