MTC MTC Hull & Structural Systems

Question 1

What is the primary purpose of a sacrificial anode on a marine vessel?

Accepted Answer

To prevent galvanic corrosion on metal components

Answer

To improve fuel efficiency

Answer

To reduce hull drag

Answer

To stabilize the vessel in rough water

Question 2

When repairing a fiberglass hull blister, what is the FIRST step a technician should take?

Accepted Answer

Grind out the blister and allow the area to dry completely

Answer

Apply gelcoat immediately

Answer

Fill the blister with epoxy without opening it

Answer

Sand the surface and apply antifouling paint

Question 3

What material is most commonly used for repairing stress cracks in a fiberglass boat hull?

Accepted Answer

Epoxy resin

Answer

Polyester resin only

Answer

Marine silicone sealant

Answer

Underwater epoxy putty alone

Question 4

What is the correct term for the measurement of a boat's displacement at rest in the water?

Accepted Answer

Draft

Answer

Beam

Answer

Freeboard

Answer

Waterline length

Question 5

Which type of bilge pump is most reliable for automatic operation in an unattended vessel?

Accepted Answer

Electric submersible pump with float switch

Answer

Manual diaphragm pump

Answer

Hand-operated piston pump

Answer

Centrifugal belt-driven pump

Question 6

When inspecting a vessel's through-hull fittings, what is the primary concern a marine technician should address?

Accepted Answer

Corrosion, cracks, and proper seacock operation

Answer

Paint color consistency

Answer

Thread count of the fasteners

Answer

Distance between fittings