AUXSEA EXAM QUESTIONS AND ACCURATE
ANSWERS (2025) |ALREADY PASSED!!
A fiberglass hull is composed of - (ANSWER)fiberglass strands and layers
saturated with resin.
List the four types of fiberglass reinforcing materials: - (ANSWER)1. Fiberglass
Mat
2. Fiberglass Cloth
3. Woven Roven
4. Chopped Strands
The two types of resins used in fiberglass construction are - (ANSWER)polyester
and epoxy.
There are many substances added to boat building resins. - (ANSWER)They are
used to harden the resin, control curing time and make the resin fire retardant.
A male mold is known as a - (ANSWER)plug.
A female mold is known as a - (ANSWER)cavity mold.
The hand-layup and chopped-strand processes are used in a - (ANSWER)cavity
mold.
,In the hand-layup and chopped-strand processes, - (ANSWER)the gel coat is
applied to the inside of the mold first.
In the matched-die method, - (ANSWER)the male and female molds are clamped
together with a laminate between.
What core materials are used in sandwich construction? - (ANSWER)Balsa wood
Foamed Plastic Plywood
List the advantages of fiberglass-built boats. - (ANSWER)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. - (ANSWER)Fiberglass is heavier
than water Fiberglass hulls are very heavy Easy to cover shoddy workmanship
What are the two general classes of wood? - (ANSWER)Hardwood Softwood.
What are the principal considerations in the selection of various types of wood for
boat building? - (ANSWER)Strength Decay resistance Availability
List the advantages of steel for boat building. - (ANSWER)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 - (ANSWER)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? - (ANSWER)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: -
(ANSWER)lightweight impervious to marine borers.
List the disadvantages of aluminum for boat building. - (ANSWER)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: - (ANSWER)Tiller Drum and Cable Sprocket
and Chain Rack and Pinion Gear and Shaft Hydraulic
The simplest steering system is - (ANSWER)the tiller.
The curve or sweep of the deck of a vessel when viewed from the side is -
(ANSWER)the sheer.
, The outward curvature of the sides of the boat near the bow that is used to keep
the deck drier is called - (ANSWER)the flare.
What are the three basic shapes of the bottom of a boat? - (ANSWER)Flat Round
Vee
What is the difference between a displacement and planing hull? - (ANSWER)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 -
(ANSWER)the sheer strake.
A timber fastened along the top of the keel is called - (ANSWER)the Keelson
What is the difference between a trunk cabin and a raised deck cabin? -
(ANSWER)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? - (ANSWER)Holes cut in
the frame near the keel which drain water to the bilge sump area. They allow the
bilge to be drained.
ANSWERS (2025) |ALREADY PASSED!!
A fiberglass hull is composed of - (ANSWER)fiberglass strands and layers
saturated with resin.
List the four types of fiberglass reinforcing materials: - (ANSWER)1. Fiberglass
Mat
2. Fiberglass Cloth
3. Woven Roven
4. Chopped Strands
The two types of resins used in fiberglass construction are - (ANSWER)polyester
and epoxy.
There are many substances added to boat building resins. - (ANSWER)They are
used to harden the resin, control curing time and make the resin fire retardant.
A male mold is known as a - (ANSWER)plug.
A female mold is known as a - (ANSWER)cavity mold.
The hand-layup and chopped-strand processes are used in a - (ANSWER)cavity
mold.
,In the hand-layup and chopped-strand processes, - (ANSWER)the gel coat is
applied to the inside of the mold first.
In the matched-die method, - (ANSWER)the male and female molds are clamped
together with a laminate between.
What core materials are used in sandwich construction? - (ANSWER)Balsa wood
Foamed Plastic Plywood
List the advantages of fiberglass-built boats. - (ANSWER)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. - (ANSWER)Fiberglass is heavier
than water Fiberglass hulls are very heavy Easy to cover shoddy workmanship
What are the two general classes of wood? - (ANSWER)Hardwood Softwood.
What are the principal considerations in the selection of various types of wood for
boat building? - (ANSWER)Strength Decay resistance Availability
List the advantages of steel for boat building. - (ANSWER)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 - (ANSWER)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? - (ANSWER)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: -
(ANSWER)lightweight impervious to marine borers.
List the disadvantages of aluminum for boat building. - (ANSWER)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: - (ANSWER)Tiller Drum and Cable Sprocket
and Chain Rack and Pinion Gear and Shaft Hydraulic
The simplest steering system is - (ANSWER)the tiller.
The curve or sweep of the deck of a vessel when viewed from the side is -
(ANSWER)the sheer.
, The outward curvature of the sides of the boat near the bow that is used to keep
the deck drier is called - (ANSWER)the flare.
What are the three basic shapes of the bottom of a boat? - (ANSWER)Flat Round
Vee
What is the difference between a displacement and planing hull? - (ANSWER)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 -
(ANSWER)the sheer strake.
A timber fastened along the top of the keel is called - (ANSWER)the Keelson
What is the difference between a trunk cabin and a raised deck cabin? -
(ANSWER)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? - (ANSWER)Holes cut in
the frame near the keel which drain water to the bilge sump area. They allow the
bilge to be drained.
