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AUXSEA Exam Questions & Answers 100% Correct Answers Verified Latest 2024 Version

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A fiberglass hull is composed of - fiberglass strands and layers saturated with resin. List the four types of fiberglass reinforcing materials: - 1. Fiberglass Mat 2. Fiberglass Cloth 3. Woven Roven 4. Chopped Strands The two types of resins used in fiberglass construction are - polyester an...

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AUXSEA Exam Questions & Answers |
100% Correct Answers | Verified | Latest
2024 Version
A fiberglass hull is composed of - ✔✔fiberglass strands and layers saturated with resin.

List the four types of fiberglass reinforcing materials: - ✔✔
1. Fiberglass Mat
2. Fiberglass Cloth
3. Woven Roven
4. Chopped Strands

The two types of resins used in fiberglass construction are - ✔✔polyester and epoxy.

There are many substances added to boat building resins. - ✔✔They are used to harden the resin,
control curing time and make the resin fire retardant.

A male mold is known as a - ✔✔plug.

A female mold is known as a - ✔✔cavity mold.

The hand-layup and chopped-strand processes are used in a - ✔✔cavity mold.

In the hand-layup and chopped-strand processes, - ✔✔the gel coat is applied to the inside of the mold
first.

In the matched-die method, - ✔✔the male and female molds are clamped together with a laminate
between.

What core materials are used in sandwich construction? - ✔✔Balsa wood Foamed Plastic Plywood

,List the advantages of fiberglass-built boats. - ✔✔Fiberglass is: Impervious to marine borers. No seams
or joints to leak. Color can be molded into the boat. Boats can be extremely strong. Fiberglass can be
molded into almost any shape.

List the disadvantages of fiberglass-built boats. - ✔✔Fiberglass is heavier than water Fiberglass hulls are
very heavy Easy to cover shoddy workmanship

What are the two general classes of wood? - ✔✔Hardwood Softwood.

What are the principal considerations in the selection of various types of wood for boat building? -
✔✔Strength Decay resistance Availability

List the advantages of steel for boat building. - ✔✔Higher strength-to-weight ratio than fiberglass,
Highest strength-to-weight ration, High resistance to impact, Abrasion and fatigue resistance, Less noisy
than all but wood, Resistant to fire.

The disadvantage of steel for boat building is that - ✔✔it deteriorates easily without proper
maintenance.

Why must you put a layer of nonmetallic paint between the hull of an aluminum boat and a layer of
copper bottom paint? - ✔✔Galvanic action will corrode the hull if the aluminum and copper touch. Note:
Copper bottom paint is now illegal and not used.

List the advantages of aluminum for boat building. Aluminum is: - ✔✔lightweight impervious to marine
borers.

List the disadvantages of aluminum for boat building. - ✔✔It is a good heat conductor so aluminum hulls
sweat, It has a relatively low melting point and melts sooner than steel if there is a fire. It is noisy.

The six types of steering systems are: - ✔✔Tiller Drum and Cable Sprocket and Chain Rack and Pinion
Gear and Shaft Hydraulic

The simplest steering system is - ✔✔the tiller.

, The curve or sweep of the deck of a vessel when viewed from the side is - ✔✔the sheer.

The outward curvature of the sides of the boat near the bow that is used to keep the deck drier is called
- ✔✔the flare.

What are the three basic shapes of the bottom of a boat? - ✔✔Flat Round Vee

What is the difference between a displacement and planing hull? - ✔✔A displacement hull displaces
water without riding above its bow wave as it moves. A planing hull allows the hull to ride up on the
after part of the hull when it moves fast enough.

In wood boat construction, the plank attached starting at the gunwale is - ✔✔the sheer strake.

A timber fastened along the top of the keel is called - ✔✔the Keelson

What is the difference between a trunk cabin and a raised deck cabin? - ✔✔A raised deck cabin extends
the full width of the hull while the trunk cabin extends less than the width of the hull so walkways are
left on either side.

What are limber holes and what purpose do they serve? - ✔✔Holes cut in the frame near the keel which
drain water to the bilge sump area. They allow the bilge to be drained.

The use of two or more materials in the hull of a vessel is known as - ✔✔composite construction.

The portion of the exterior hull at the waterline is called - ✔✔the boot top.

The spoke of a steering wheel that is vertical when the rudder is exactly centered is - ✔✔the king spoke.

The vertical distance between the waterline and gunwale is - ✔✔freeboard.

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