Boat Propulsion Systems Maintenance Quiz
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Questions and Answers

What components are part of a boat's propulsion system?

  • Engine, steering wheel, and propellers
  • Engine, fuel tank, and propellers
  • Sails, masts, and rudders
  • Engine, transmissions, and propellers (correct)

Which type of outboard motor combines inboard power with outboard drive?

  • Inboard
  • Sterndrive (correct)
  • Outboard
  • Jet drive

What should be checked during maintenance of boat motors related to fuel?

  • Anchors and ropes
  • Bow and stern lights
  • Life jackets and fire extinguishers
  • Fuel lines and fuel primmer (correct)

Why is it important to regularly check fuel clamp lines for leaks according to the text?

<p>To prevent engine failure due to incorrect fuel-air mixture (A)</p> Signup and view all the answers

What potential problem may occur if a boat's fuel tank does not vent properly?

<p>Tank rupture due to vacuum (B)</p> Signup and view all the answers

Why is it recommended to always change the boat's engine oil every 100 hours?

<p>To avoid damage to the tank (A)</p> Signup and view all the answers

Which type of battery is recommended for a boat's engine cranking battery?

<p>Marine battery (C)</p> Signup and view all the answers

Why should you not fill the boat's fuel tank beyond 90% capacity?

<p>To prevent overflow and allow gas expansion (C)</p> Signup and view all the answers

What should you do if the water flow during engine flushing is not strong?

<p>Check for debris stuck in the outflow tube (D)</p> Signup and view all the answers

What is a characteristic of 2-stroke outboard engines that differentiates them from 4-stroke engines?

<p>Simpler design (B)</p> Signup and view all the answers

What does a 4-stroke outboard engine have that a 2-stroke engine does not?

<p>Exhaust valves (C)</p> Signup and view all the answers

Why should a fuel stabilizer additive be used in a boat's fuel if not used within a week or two?

<p>To prevent fuel decomposition issues (A)</p> Signup and view all the answers

What should be done after flushing the engine during maintenance?

<p>Check for fuel or water leaks, lubricate moving parts, and spray with anti-corrosive (C)</p> Signup and view all the answers

What is the purpose of using a maintenance type battery charger on a boat that isn't used frequently?

<p>To ensure the battery remains fully charged between uses (A)</p> Signup and view all the answers

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