ASA 103 EXAM WITH 100% CORRECT
ANSWERS
Refueling procedure for a diesel engine using diesel fuel. - Answer- Most sailboats have
diesel engines.
Locate the "diesel fill plate" on the deck. Open it with a winch or a special deck-plate
key.
Check the signage on the fuel hose before dispensing: diesel!
Place a rag over the fuel nozzle to catch drips.
Insert the nozzle into the fuel fill.
Squeeze the trigger on the nozzle to start fueling. Start slowly to make sure the fuel
tank's vent is not blocked and can allow displaced air to escape.
Have someone call out the number of gallons pumped periodically.
Do not overfill--listen carefully for sound of filling up.
Withdraw the nozzle while holding the rag around it.
Return the nozzle to attendant. Wipe up any spills.
Dispose of rag properly.
Replace the cap in the fuel-fill plate.
Refueling procedures for a vessel equipped with an outboard engine using gasoline. -
Answer- Outboard motors burn gasoline which is highly flammable. The gasoline tank
should be stowed on deck or in a cockpit locker that's sealed from the boat's interior to
prevent gasoline and its fumes from getting belowdecks.
To refill: disconnect the fuel line from the motor and take the tank onto the fuel dock.
Place it where fumes displaced from the tank as it fills will not fall into the sailboat, and
fill it carefully. Wipe off any spilled gas before placing the tank aboard the sailboat.
Essential navigator's tools. - Answer- Compass.
Nautical charts. Chart No. 1.
Parallel rule.
Dividers.
Pencils.
Log book.
Depthsounder.
GPS receiver.
Depth sounding. - Answer- Depth marked on a chart is the depth at the very low state of
the tide, so it should be the least depth you would expect to find at that location.
However, this is the depth on the day the sounding was made, and it could have
changed due to mobility of seabed. Wind, tide, silting and erosion can cause depth
changes over time, or within one season.
, Bottom types--Sand (S) - Answer- Provides consistently good holding and is easy for
anchors to penetrate. Lightweight and plow anchors work well.
Aids to navigation - Answer- The lateral system: buoys and beacons set along sides of
channels to mark the limit of navigable water.
IALA Region B is used in North America where "red, right, return" rule applies.
IALA Region A is used in much of the rest of the world.
Regulatory markers are white cylindrical with orange stripes above and below these
shapes: diamond (danger), circle (restricted operations), diamond with a cross
(exclusion zone, keep out), rectangle (information: direction, distance, etc.)
Latitude / Longitude - Answer- Imaginary lines that divide the earth into sections
horizontally (latitude) and vertically (longitude) and form coordinates on a chart.
1' of latitude=1 nautical mile
Determining magnetic direction - Answer- Finding the number of degrees on the
compass card that corresponds to the lubber's line.
Measuring distance - Answer- Use the dividers to measure the distance on a chart
between points A and B. Transfer the dividers to a Latitude scale on the side of the
chart and count the minutes between the two points of the dividers. This is the distance
in nautical miles.
How to prevent undue magnetic influence on a compass. - Answer- Keep anything
containing iron or electric current away from the compass. Keep such items at least 3
feet away from the ship's compass: cell phones, flashlights, batteries, deck knives,
radios.
Dangers of, and how to avoid, a 'Lee Shore.' - Answer- A lee shore can be any
obstruction or hazard (land or pier) toward which the wind is blowing. To be prudent,
keep in mind the surrounding hazards and the potential effect of a change in the wind or
current to avoid getting in a lee shore. When trying to get away from a lee shore avoid
"pinching" (sailing too close to the wind) which slows the boat down.
Sources of weather information - Answer- National Weather Service (NWS) of the
National Ocean and Atmospheric Administration (NOAA) online.
VHF radio--Wx channels tunned to NOAA continuous broadcast of local marine
weather.
Wind speed-5 knots (Beaufort scale 2: wind 4-6 knots, wave height 1 ft.) - Answer- Light
breeze: the wind forms small wavelets that bump against the hull. The apparent wind
will be higher and you can make steady progress upwind, but will be slow downwind.
ANSWERS
Refueling procedure for a diesel engine using diesel fuel. - Answer- Most sailboats have
diesel engines.
Locate the "diesel fill plate" on the deck. Open it with a winch or a special deck-plate
key.
Check the signage on the fuel hose before dispensing: diesel!
Place a rag over the fuel nozzle to catch drips.
Insert the nozzle into the fuel fill.
Squeeze the trigger on the nozzle to start fueling. Start slowly to make sure the fuel
tank's vent is not blocked and can allow displaced air to escape.
Have someone call out the number of gallons pumped periodically.
Do not overfill--listen carefully for sound of filling up.
Withdraw the nozzle while holding the rag around it.
Return the nozzle to attendant. Wipe up any spills.
Dispose of rag properly.
Replace the cap in the fuel-fill plate.
Refueling procedures for a vessel equipped with an outboard engine using gasoline. -
Answer- Outboard motors burn gasoline which is highly flammable. The gasoline tank
should be stowed on deck or in a cockpit locker that's sealed from the boat's interior to
prevent gasoline and its fumes from getting belowdecks.
To refill: disconnect the fuel line from the motor and take the tank onto the fuel dock.
Place it where fumes displaced from the tank as it fills will not fall into the sailboat, and
fill it carefully. Wipe off any spilled gas before placing the tank aboard the sailboat.
Essential navigator's tools. - Answer- Compass.
Nautical charts. Chart No. 1.
Parallel rule.
Dividers.
Pencils.
Log book.
Depthsounder.
GPS receiver.
Depth sounding. - Answer- Depth marked on a chart is the depth at the very low state of
the tide, so it should be the least depth you would expect to find at that location.
However, this is the depth on the day the sounding was made, and it could have
changed due to mobility of seabed. Wind, tide, silting and erosion can cause depth
changes over time, or within one season.
, Bottom types--Sand (S) - Answer- Provides consistently good holding and is easy for
anchors to penetrate. Lightweight and plow anchors work well.
Aids to navigation - Answer- The lateral system: buoys and beacons set along sides of
channels to mark the limit of navigable water.
IALA Region B is used in North America where "red, right, return" rule applies.
IALA Region A is used in much of the rest of the world.
Regulatory markers are white cylindrical with orange stripes above and below these
shapes: diamond (danger), circle (restricted operations), diamond with a cross
(exclusion zone, keep out), rectangle (information: direction, distance, etc.)
Latitude / Longitude - Answer- Imaginary lines that divide the earth into sections
horizontally (latitude) and vertically (longitude) and form coordinates on a chart.
1' of latitude=1 nautical mile
Determining magnetic direction - Answer- Finding the number of degrees on the
compass card that corresponds to the lubber's line.
Measuring distance - Answer- Use the dividers to measure the distance on a chart
between points A and B. Transfer the dividers to a Latitude scale on the side of the
chart and count the minutes between the two points of the dividers. This is the distance
in nautical miles.
How to prevent undue magnetic influence on a compass. - Answer- Keep anything
containing iron or electric current away from the compass. Keep such items at least 3
feet away from the ship's compass: cell phones, flashlights, batteries, deck knives,
radios.
Dangers of, and how to avoid, a 'Lee Shore.' - Answer- A lee shore can be any
obstruction or hazard (land or pier) toward which the wind is blowing. To be prudent,
keep in mind the surrounding hazards and the potential effect of a change in the wind or
current to avoid getting in a lee shore. When trying to get away from a lee shore avoid
"pinching" (sailing too close to the wind) which slows the boat down.
Sources of weather information - Answer- National Weather Service (NWS) of the
National Ocean and Atmospheric Administration (NOAA) online.
VHF radio--Wx channels tunned to NOAA continuous broadcast of local marine
weather.
Wind speed-5 knots (Beaufort scale 2: wind 4-6 knots, wave height 1 ft.) - Answer- Light
breeze: the wind forms small wavelets that bump against the hull. The apparent wind
will be higher and you can make steady progress upwind, but will be slow downwind.
