Ship Driver Vessel Systems and Maintenance

Question 1

What does a bilge pump do on a vessel?

Accepted Answer

Removes water that has collected in the lowest part of the hull

Answer

Transfers fuel from one tank to another

Answer

Circulates cooling water through the engine

Answer

Pressurizes the freshwater system

Question 2

How often should engine oil be checked on an inboard vessel?

Accepted Answer

Before each outing

Answer

Once per season

Answer

Only after major trips

Answer

Every 100 hours of operation only

Question 3

What is the purpose of zincs (sacrificial anodes) on a vessel?

Accepted Answer

Protect metal hull and drive components from galvanic corrosion

Answer

Improve radio signal reception

Answer

Prevent barnacle growth

Answer

Reduce drag on the hull

Question 4

What should be done if a through-hull fitting fails and water rushes in?

Accepted Answer

Immediately insert a tapered wooden plug (seacock plug) into the opening

Answer

Call for help and wait

Answer

Use duct tape to seal the fitting

Answer

Turn on the bilge pump and continue operating

Question 5

What indicates a failing impeller on a raw-water-cooled engine?

Accepted Answer

Engine overheating — loss of cooling water flow

Answer

Low fuel pressure warning light

Answer

Excess voltage at the alternator

Answer

Rough idle at low RPM

Question 6

What is the recommended procedure for winterizing a freshwater-cooled inboard engine?

Accepted Answer

Flush with antifreeze and change oil before storage

Answer

Drain all coolant and leave dry

Answer

Run at full throttle until coolant evaporates

Answer

Cover the engine and leave as-is