OBS Online Boating Equipment & Maintenance 2 — Questions and Answers
Question 1: What is the purpose of a bilge pump on a boat?
- To circulate fresh water through the engine
- To remove water that has accumulated in the lowest part of the hull (Correct answer)
- To pump fuel from the tank to the engine
- To pressurize the freshwater system
Correct answer: To remove water that has accumulated in the lowest part of the hull
A bilge pump removes unwanted water that collects in the bilge, the lowest interior section of the hull, preventing swamping or sinking.
Question 2: Which type of anchor is best suited for rocky or coral bottoms?
- Fluke (Danforth) anchor
- Mushroom anchor
- Grapnel anchor (Correct answer)
- Plow (CQR) anchor
Correct answer: Grapnel anchor
A grapnel anchor has multiple tines that hook into rocks or coral, making it the best choice for those bottom types.
Question 3: How often should you inspect your boat's fuel lines and connections?
- Only when the engine fails to start
- Once per season is sufficient
- Before each outing and at regular maintenance intervals (Correct answer)
- Every three years during major overhauls
Correct answer: Before each outing and at regular maintenance intervals
Fuel lines should be inspected before each trip and during routine maintenance to catch cracks, loose fittings, or leaks that could cause fire.
Question 4: What does a depth sounder (fish finder) primarily measure?
- The speed of the boat through water
- Water temperature at the surface
- The distance from the hull to the bottom (Correct answer)
- Wind speed and direction
Correct answer: The distance from the hull to the bottom
A depth sounder uses sonar to measure the distance from the transducer on the hull to the bottom, helping avoid running aground.
Question 5: What is the correct way to store a wet life jacket after use?
- Fold it tightly and seal it in a plastic bag
- Hang it in a well-ventilated area to air dry completely (Correct answer)
- Place it immediately in a dry storage bin below deck
- Wring out the foam and store flat under a seat
Correct answer: Hang it in a well-ventilated area to air dry completely
Life jackets must be hung and allowed to air dry completely to prevent mildew and foam degradation that reduces buoyancy.
Question 6: A boat's capacity plate indicates the maximum weight of persons. What else does it typically specify?
- The maximum engine horsepower and maximum total weight (Correct answer)
- The recommended anchor weight and chain length
- The minimum fuel capacity required
- The type of fire extinguisher required
Correct answer: The maximum engine horsepower and maximum total weight
The capacity plate on a monohull powerboat states the maximum number of persons, maximum weight capacity, and maximum horsepower to prevent overloading.
Question 7: Which maintenance task helps prevent corrosion on a boat's battery terminals?
- Coating terminals with petroleum jelly or anti-corrosion spray (Correct answer)
- Rinsing terminals with salt water monthly
- Sanding terminals with coarse sandpaper weekly
- Keeping battery fully discharged when not in use
Correct answer: Coating terminals with petroleum jelly or anti-corrosion spray
Applying petroleum jelly or a commercial anti-corrosion spray to battery terminals creates a protective barrier against oxidation and corrosion.
OBS Online Boating Equipment & Maintenance 2
What is the purpose of a bilge pump on a boat?