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