OBS Online Boating Equipment & Maintenance 3

Question 1

What class of fire extinguisher is required on a boat with a permanently installed fuel tank under 26 feet?

Accepted Answer

One B-I type extinguisher

Answer

Motorboats under 26 feet with a permanently installed fuel tank are required by the USCG to carry at least one B-I fire extinguisher.

Question 2

What is the primary function of a marine VHF radio channel 16?

Accepted Answer

International distress, safety, and calling channel

Answer

Channel 16 is the international hailing and distress channel that all vessels must monitor, and it is used to initiate contact before switching to a working channel.

Question 3

When should you replace a flare in your visual distress signal kit?

Accepted Answer

When the flare's expiration date has passed

Answer

Pyrotechnic flares are stamped with an expiration date and must be replaced when expired because their reliability degrades over time.

Question 4

What is the purpose of sacrificial anodes (zinc anodes) on a boat?

Accepted Answer

To protect metal parts from galvanic corrosion by corroding first

Answer

Sacrificial anodes are made of less noble metals that corrode preferentially, protecting the boat's more valuable metal components from galvanic corrosion.

Question 5

Which of the following is a sign that a marine battery needs replacement?

Accepted Answer

Battery fails to hold a charge or has cracked casing

Answer

A battery that cannot hold a charge after proper charging, or one with a cracked or bulging case, has failed and must be replaced for reliable engine starting.

(OBS) Online Boating Safety Certification Practice Test

(OBS) Online Boating Safety Certification Practice Test

OBS Online Boating Equipment & Maintenance 3