Term
| What two ways can tugs be tied up to the ship? |
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Definition
| 1) Attached to bow & stern 2) Only bow attached(used to push or pull) |
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Term
| 15 - 30 knots of wind is equal to how much current? |
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Definition
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Term
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Definition
| Movement of water caused by gravitational interactions. |
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Term
| What are two narrow channel effects? |
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Definition
| Bank cushion (bow away from bank) and bank suction (bow towards bank-Venturi effect) |
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Term
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Definition
| Opening in forward freeboard of ship where anchor is located. |
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Term
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Definition
| Freeboard is the hull above the waterline. |
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Term
| Where is the stem located on a ship? |
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Definition
| Forward most part of bow. |
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Term
| Where is the truck located? |
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Definition
| highest transverse beam on mast used for apparent height |
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Term
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Definition
| At the aft most part of ship where the ship's name is stenciled. |
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Term
| What is the purpose of the bilge keel? |
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Definition
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Term
| What is painted on the lower hull of the ship? |
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Definition
| Waterline, and navigational draft markings (shows the lowest point of ship to avoid collision with ground) |
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Term
| What two forces are involved with ship handling? |
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Definition
| Controllable and Uncontrollable. |
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Term
| What are some controllable forces? |
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Definition
| propeller, rudder, bow thruster/APU, mooring lines, anchors, tugs |
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Term
| What are some uncontrollable forces? |
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Definition
| wind, current/tides, seas, water depth |
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Term
| Can uncontrollable forces be used to your advantage? |
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Definition
| Yes, if you study the weather, charts, etc., these forces can be prepared for. |
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Term
| What provides the ship with forward thrust? |
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Definition
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Term
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Definition
| Imaginary point on the ship’s centerline about which the ship pivots. Usually about 1/3 aft of the bow. The faster you go the farther forward the pivot point moves. |
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Term
| How can anchors be used to move ship forward and what is this called? |
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Definition
| The anchor can be hauled forward of the ship by a small boat and then it will pull the ship forward and this continues until destination is reached. It is called kedging. |
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Term
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Definition
| Outboard to inboard, starboard to port, top to bottom |
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Term
| How is a hyphen represented on the hoist? |
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Definition
| An empty space between flags. |
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Term
| What is meant by at the dip? |
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Definition
| 3/4 of the way up the hoist used to signal to the originating ship that the message is understood. |
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Term
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Definition
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Term
| What form of communication is used with the flashing lights? |
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Definition
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Term
| What is SOS in morse code? What does SOS stand for? |
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Definition
| "...- - -..." Save Our Souls |
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Term
| What are two examples of non-directional lights? |
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Definition
| Yardarm blinkers and infrared blinkers |
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Term
| What type of light is a search light? |
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Definition
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Term
| What forces can the propeller apply to the ship? |
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Definition
1) Forward (or reverse) thrust
2) Side Force (Sternwalk) |
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Term
| What is standard rudder and standard speed? |
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Definition
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Term
| What are the two types of propellers? |
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Definition
1) Fixed Pitch Propellers
2) Controllable Pitch Propellers |
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Term
| What does a controllable pitch propeller operate? |
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Definition
| The thrust (speed) is controlled by changing the pitch of the propeller blade. |
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Term
| How does a fixed pitch propeller go in reverse? |
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Definition
| To go backwards, it must stop shaft and spin the shaft in the opposite direction. |
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Term
| How does a fixed pitch propeller operate? |
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Definition
| Thrust (speed) controlled by changing speed of the shaft. |
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Term
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Definition
| Measure of Relative Motion |
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Term
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Definition
| Direction of Relative Motion |
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Term
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Definition
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Term
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Definition
| Closest Point of Approach |
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Term
| In a speed triangle, what vector is used to find the true course and speed of contact? |
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Definition
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Term
| What is the equation to find target angle? |
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Definition
| TA = True Bearing +/-180 - True Course |
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Term
| Is Target Angle in true or relative bearing? |
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Definition
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Term
| What is the rudder used for? |
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Definition
| Used to control ship’s heading by moving the stern. |
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Term
| What are mooring lines used for? |
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Definition
| Used to control ship’s movement in vicinity of a pier. |
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Term
| What two ways are mooring lines used? |
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Definition
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Term
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Definition
| Using mooring lines to pull ship to pier. |
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Term
| What two parts of the ship control the stern? |
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Definition
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Term
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Definition
Bow of a ship rides up onto the bow wave, stern of a ship tends to sink,
Not enough water for the propellers |
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Term
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Definition
not absolute or independent, Comparison
Compass. Relative Motion is the comparison of movement between two (or more) objects. |
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Term
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Definition
| Simply the relative movement left or right of an object as it appears to you |
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Term
| Does The object have to be moving to have bearing drift? |
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Definition
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Term
| 3 types of Bearing Drift? |
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Definition
1) Good Right/Left Bearing Drift
2) Slight Right/Left Bearing Drift
3) Constant Bearing Decreasing Range (CBDR) |
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Term
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Definition
| The Relative Bearing from the Target Ship to Own Ship |
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Term
| What is the 3-Minutes Rule? |
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Definition
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