Nav Rules - Lights

The correct answer is "fishing or trawling day signal." This signal is used to indicate that a fishing vessel is engaged in fishing or trawling activities during daylight hours. It is important for other vessels to be aware of this signal to avoid any collisions or interference with the fishing operations. The signal typically consists of a cone shape with the apex pointing downward and is displayed on a mast or other suitable location on the fishing vessel.

This answer refers to a specific type of vessel that is categorized as a power-driven vessel, meaning it is propelled by mechanical means such as an engine. The vessel is also described as being "under way," which means it is in motion. Additionally, the vessel is stated to be over 50 meters in length. This information suggests that the answer is referring to a larger power-driven vessel that is currently in motion and exceeds a certain length.

Sidelights are used to provide visibility to other vessels in low visibility conditions or at night. They are positioned on the sides of a vessel and emit light in a specific arc. The correct answer of 112.5º indicates that the sidelights provide visibility in that particular arc, allowing other vessels to see the vessel from that angle.

not-available-via-ai

The correct answer is 225º. This refers to the degree of visibility of the masthead light. The masthead light is a white light located at the highest point on a vessel, typically on the front of the mast. It is used to indicate the presence and position of the vessel to other boats and ships at night or in low visibility conditions. In this case, the masthead light has a visibility range of 225º, meaning it can be seen from the front of the vessel to slightly behind it on the port side.

The correct answer is Masthead light. A masthead light is a white light that is fixed to show light from straight ahead to 22.5 degrees abaft the beam on either side of the vessel. It is typically mounted at the highest point on a vessel's mast or superstructure. This light is used to indicate the presence and position of a vessel to other vessels in low visibility conditions, such as at night or in foggy weather.

not-available-via-ai

The given information describes a yellow flashing light that flashes at a rate of 50-75 times per minute. It has an arc of visibility from 180 to 225 degrees and is fixed to show the light from straight ahead to no more than 22.5 degrees abaft the beam. Based on these characteristics, the light is identified as a special flashing light.

This type of light may be used by a sailing vessel under 20m (65 feet).

A power driven vessel over 50 meters is distinguished by having 2 masthead lights. Masthead lights are white lights located on the front of a vessel and are used to indicate the vessel's position and direction of movement. Having 2 masthead lights is a requirement for larger power driven vessels to ensure their visibility and to avoid collisions at sea.

not-available-via-ai

The length of a tow is measured from the stern of the towing vessel to the after end of the tow. This means that the measurement starts from the back of the towing vessel and extends to the furthest point at the back of the towed object. This measurement is important in order to determine the overall length of the tow and ensure that it is within the acceptable limits for safe towing operations.

not-available-via-ai

on vessels

The required visibility range on a masthead light on vessels between 12 to 50 meters is 5 miles. However, if the vessel is under 20 meters, the required visibility range is reduced to 3 miles.

+ 2 mast head lights
+ 1 special flashing light OVER stern light

not-available-via-ai

http://www.navcen.uscg.gov/pdf/navRules/Insert_Page150.pdf

night signal is 3 mast head lights (arc of 180 -225, 22.5 degrees abaft the beam on either side)

http://www.navcen.uscg.gov/pdf/navRules/Insert_Page150.pdf

The correct answer is 2 miles because the inland range requirement for a special flashing light on all vessels, regardless of size, is 2 miles. This means that the light should be visible from a distance of 2 miles in inland waters.

Vessels over 50 meters in length require a masthead light with a range of 6 miles. This is because masthead lights are required for larger vessels to ensure their visibility to other ships and to avoid collisions. A range of 6 miles allows the light to be seen from a significant distance, providing ample warning to other vessels in the vicinity.

The correct answer is "air-cushion vessel in nondisplacement mode". This means that the air-cushion vessel is operating in a mode where it is not displacing water. In this mode, the vessel is supported by a cushion of air, allowing it to hover above the water surface. This mode is typically used for high-speed operations and allows the vessel to travel faster than 50 meters per second.

A WIG craft must display a flashing red light only when taking off. This is because a flashing red light is recognized as a signal to indicate caution or danger, which is important during takeoff to alert other vessels or aircraft in the vicinity. The flashing red light helps to ensure the safety of the WIG craft and other vehicles in the area by providing a clear visual signal.

The correct answer is the starboard side of a vessel under sail. This refers to the right side of a boat when it is sailing, with the wind coming from behind. It is important for sailors to understand and follow the rules of navigation, including knowing the different sides of a vessel and their significance in order to ensure safe and efficient sailing.

not-available-via-ai

not-available-via-ai

The correct answer is 3 miles because the range for sidelights, towing lights, and all around lights on vessels over 50 meters is typically required to be visible from a distance of at least 3 miles. This ensures that other vessels can see and identify the larger vessel, promoting safety and preventing collisions in open waters.

If vessel anchored is over 50 meters, it will add a lower light aft
if vessel anchored is over 100 meters, it will also add deck lights

This day signal can represent three different scenarios. Firstly, it can indicate that the vessel named Dracone is being towed. Secondly, it can signify that a power-driven vessel is towing another vessel astern, and the length of the tow is over 200 meters. Lastly, it can represent a sailing vessel that is using both sail and machine power.