AUXSEA Exam Questions with Verified Answers Latest Update 2025 Graded A+
A fiberglass hull is composed of - Answers fiberglass strands and layers saturated with resin.
List the four types of fiberglass reinforcing materials: - Answers 1. Fiberglass Mat
2. Fiberglass Cloth
3. Woven Roven
4. Chopped Strands
The two types of resins used in fiberglass construction are - Answers polyester and epoxy.
There are many substances added to boat building resins. - Answers They are used to harden the resin,
control curing time and make the resin fire retardant.
A male mold is known as a - Answers plug.
A female mold is known as a - Answers cavity mold.
The hand-layup and chopped-strand processes are used in a - Answers cavity mold.
In the hand-layup and chopped-strand processes, - Answers the gel coat is applied to the inside of the
mold first.
In the matched-die method, - Answers the male and female molds are clamped together with a laminate
between.
What core materials are used in sandwich construction? - Answers Balsa wood Foamed Plastic Plywood
List the advantages of fiberglass-built boats. - Answers 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. - Answers Fiberglass is heavier than water Fiberglass
hulls are very heavy Easy to cover shoddy workmanship
What are the two general classes of wood? - Answers Hardwood Softwood.
What are the principal considerations in the selection of various types of wood for boat building? -
Answers Strength Decay resistance Availability
List the advantages of steel for boat building. - Answers 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 - Answers 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? - Answers 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: - Answers lightweight impervious to
marine borers.
List the disadvantages of aluminum for boat building. - Answers 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: - Answers Tiller Drum and Cable Sprocket and Chain Rack and
Pinion Gear and Shaft Hydraulic
The simplest steering system is - Answers the tiller.
The curve or sweep of the deck of a vessel when viewed from the side is - Answers the sheer.
The outward curvature of the sides of the boat near the bow that is used to keep the deck drier is called
- Answers the flare.
What are the three basic shapes of the bottom of a boat? - Answers Flat Round Vee
What is the difference between a displacement and planing hull? - Answers 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 - Answers the sheer strake.
A timber fastened along the top of the keel is called - Answers the Keelson
What is the difference between a trunk cabin and a raised deck cabin? - Answers 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? - Answers 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 - Answers composite construction.
The portion of the exterior hull at the waterline is called - Answers the boot top.
The spoke of a steering wheel that is vertical when the rudder is exactly centered is - Answers the king
spoke.
The vertical distance between the waterline and gunwale is - Answers freeboard.
, The transverse seats in rowing craft are called thwarts the center of which is supported by - Answers the
thwart stanchion.
Describe the characteristics of the following sailboat types: - Answers Catboat A small boat with a single
mast set far forward and only one sail. Sloop A boat with a single mast carrying a main sail and one sail
forward. Ketch A vessel with two masts; the smaller mizzen is aft but forward of the rudderpost. Yawl A
vessel with two masts; the small mizzen aft of the rudderpost Schooner A vessel with two or more fore-
and-aft rigged masts with the aft mast larger than the other(s).
The gross tonnage of a vessel is ________ - Answers A measurement of the entire capacity of a ship
expressed as one gross ton for each 100 cubic feet of internal volume.
What is the proper way to block up a hull? - Answers The weight of the boat should rest on the keel. The
keel should rest on blocks to allow ventilation. Blocks should be every five feet and high enough to allow
working space under the hull.
Why shouldn't you allow the weight of the boat to rest on the shoring? - Answers Excessive strain on the
hull can damage the boat.
List the lay-up chores that must be done after the boat is hauled out. - Answers Clean bottom of all
marine growth and animal life. Wash the hull with fresh water. Drain the water system and winterize it if
necessary. (There is a very long list.)
What is the purpose of allowing the boat to ventilate when it is layed up? - Answers Ventilation prevents
condensation which can cause dry rot and mildew.
The two types of marine growth are - Answers vegetable and animal.
What are the two things that can happen to a wooden boat that is not protected against marine
growths? - Answers Performance can be reduced. The hull can be weakened or destroyed.
How does copper protect a boat's hull? - Answers Copper in salt water gives of poisonous salts which
prevent adhesion of plant and animal life. Note: Copper hull paint is now illegal.
What should you consider when selecting a bottom paint for your boat? - Answers What metals in the
boat will be influenced by the paint.
What causes dry rot? - Answers A fungus that thrives on fresh water.
A first indication of dry rot is its smell; - Answers a musty, moldy odor.
List some of the places to look for dry rot in a wooden boat - Answers Dark damp places;
Areas where fresh water can enter;
Bilge,
A fiberglass hull is composed of - Answers fiberglass strands and layers saturated with resin.
List the four types of fiberglass reinforcing materials: - Answers 1. Fiberglass Mat
2. Fiberglass Cloth
3. Woven Roven
4. Chopped Strands
The two types of resins used in fiberglass construction are - Answers polyester and epoxy.
There are many substances added to boat building resins. - Answers They are used to harden the resin,
control curing time and make the resin fire retardant.
A male mold is known as a - Answers plug.
A female mold is known as a - Answers cavity mold.
The hand-layup and chopped-strand processes are used in a - Answers cavity mold.
In the hand-layup and chopped-strand processes, - Answers the gel coat is applied to the inside of the
mold first.
In the matched-die method, - Answers the male and female molds are clamped together with a laminate
between.
What core materials are used in sandwich construction? - Answers Balsa wood Foamed Plastic Plywood
List the advantages of fiberglass-built boats. - Answers 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. - Answers Fiberglass is heavier than water Fiberglass
hulls are very heavy Easy to cover shoddy workmanship
What are the two general classes of wood? - Answers Hardwood Softwood.
What are the principal considerations in the selection of various types of wood for boat building? -
Answers Strength Decay resistance Availability
List the advantages of steel for boat building. - Answers 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 - Answers 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? - Answers 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: - Answers lightweight impervious to
marine borers.
List the disadvantages of aluminum for boat building. - Answers 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: - Answers Tiller Drum and Cable Sprocket and Chain Rack and
Pinion Gear and Shaft Hydraulic
The simplest steering system is - Answers the tiller.
The curve or sweep of the deck of a vessel when viewed from the side is - Answers the sheer.
The outward curvature of the sides of the boat near the bow that is used to keep the deck drier is called
- Answers the flare.
What are the three basic shapes of the bottom of a boat? - Answers Flat Round Vee
What is the difference between a displacement and planing hull? - Answers 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 - Answers the sheer strake.
A timber fastened along the top of the keel is called - Answers the Keelson
What is the difference between a trunk cabin and a raised deck cabin? - Answers 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? - Answers 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 - Answers composite construction.
The portion of the exterior hull at the waterline is called - Answers the boot top.
The spoke of a steering wheel that is vertical when the rudder is exactly centered is - Answers the king
spoke.
The vertical distance between the waterline and gunwale is - Answers freeboard.
, The transverse seats in rowing craft are called thwarts the center of which is supported by - Answers the
thwart stanchion.
Describe the characteristics of the following sailboat types: - Answers Catboat A small boat with a single
mast set far forward and only one sail. Sloop A boat with a single mast carrying a main sail and one sail
forward. Ketch A vessel with two masts; the smaller mizzen is aft but forward of the rudderpost. Yawl A
vessel with two masts; the small mizzen aft of the rudderpost Schooner A vessel with two or more fore-
and-aft rigged masts with the aft mast larger than the other(s).
The gross tonnage of a vessel is ________ - Answers A measurement of the entire capacity of a ship
expressed as one gross ton for each 100 cubic feet of internal volume.
What is the proper way to block up a hull? - Answers The weight of the boat should rest on the keel. The
keel should rest on blocks to allow ventilation. Blocks should be every five feet and high enough to allow
working space under the hull.
Why shouldn't you allow the weight of the boat to rest on the shoring? - Answers Excessive strain on the
hull can damage the boat.
List the lay-up chores that must be done after the boat is hauled out. - Answers Clean bottom of all
marine growth and animal life. Wash the hull with fresh water. Drain the water system and winterize it if
necessary. (There is a very long list.)
What is the purpose of allowing the boat to ventilate when it is layed up? - Answers Ventilation prevents
condensation which can cause dry rot and mildew.
The two types of marine growth are - Answers vegetable and animal.
What are the two things that can happen to a wooden boat that is not protected against marine
growths? - Answers Performance can be reduced. The hull can be weakened or destroyed.
How does copper protect a boat's hull? - Answers Copper in salt water gives of poisonous salts which
prevent adhesion of plant and animal life. Note: Copper hull paint is now illegal.
What should you consider when selecting a bottom paint for your boat? - Answers What metals in the
boat will be influenced by the paint.
What causes dry rot? - Answers A fungus that thrives on fresh water.
A first indication of dry rot is its smell; - Answers a musty, moldy odor.
List some of the places to look for dry rot in a wooden boat - Answers Dark damp places;
Areas where fresh water can enter;
Bilge,
