PPCDL Quiz Questions And Answers

A "Vessel not under Command" refers to a situation where a ship is unable to maneuver due to a mechanical breakdown, such as an engine or steering failure. This means that the ship is unable to control its movements and is therefore considered to be not under the command of the crew.

In the event of a mechanical breakdown in a narrow channel or fairway, the best course of action is to move to the starboard side of the channel and anchor. This helps to ensure that the vessel is out of the way of other passing vessels and reduces the risk of collision or obstruction in the channel. Anchoring also helps to maintain the vessel's position and prevent it from drifting further into the channel. By moving to the starboard side, the vessel allows sufficient space for other vessels to pass safely on the port side.

The flag "A" in the International Code of Signals signifies that there is a diver below, and it is necessary to keep a safe distance at a slow speed. This flag is used to indicate to other vessels that there is a potential danger in the water due to the presence of a diver. It serves as a warning to exercise caution and avoid any actions that could pose a risk to the diver's safety.

Contour lines on a navigation chart indicate that the depth of water is consistent along those lines. This means that if a vessel follows a contour line, it will maintain a constant depth throughout its course. This information is crucial for safe navigation, as it allows sailors to avoid shallow areas or underwater obstructions. The contour lines provide a visual representation of the underwater topography, helping mariners to plan their routes and avoid potential hazards.

When you hear the fog signals of a vessel making way forward of your beam in an area of restricted visibility, it indicates that there is a risk of collision. The correct action to take in this situation is to slow down and assess the situation. By slowing down, you give yourself more time to evaluate the risk and make a decision. If it is safe to do so, you should alter your course to starboard. This is because altering to starboard will allow you to pass the other vessel on your port side, which is the preferred side for passing in accordance with the International Regulations for Preventing Collisions at Sea (COLREGS).

When you see a vessel crossing and displaying two red lights in a vertical line at night, you should give way regardless of her relative position. This is because the two red lights in a vertical line indicate that the vessel is a power-driven vessel and it is not under command. In this situation, it is important to give way and avoid a potential collision.

The correct answer is "All of the above." This means that no pleasure craft is allowed to go alongside any public jetty, tow a parachute or hang-glider in the port, or exceed the speed limit in rivers and East Johor Strait.

The red and green lights indicate that the vessel ahead is displaying the sidelights, which are typically used by sailing vessels. Therefore, the power-driven vessel should take appropriate action to avoid a collision with the sailing vessel. This may include altering course, reducing speed, or taking any other necessary actions to ensure a safe distance between the two vessels.

Raffles Lighthouse is the correct answer because it is the lighthouse that overlooks Pulau Senang.

The correct answer is "Off Changi Naval Base." This means that the Changi beacon is located near or in close proximity to the Changi Naval Base. The beacon is likely used as a navigational aid or marker for ships and vessels in the area, helping them to identify their location and navigate safely.

When approaching a West Cardinal Buoy right ahead while heading south with a course of 180 degrees True, the correct action is to alter the course to starboard and pass at a safe distance. This is because West Cardinal Buoys indicate that safe water lies to the west of the buoy, and vessels should pass to the west of it. Therefore, altering the course to starboard ensures that the buoy is passed on the correct side, maintaining a safe distance.

The acronym GSP in the context of the Chart GSP1 refers to the Grid of Singapore Port. This suggests that the chart provides a grid or layout of the port of Singapore, which could be useful for navigation and planning purposes.

To determine if the risk of collision exists, one can observe the compass bearing of an approaching vessel. If the compass bearing does not appreciably change, it indicates that the vessel is on a collision course. This means that the vessels are not altering their course and are heading towards each other, increasing the risk of collision. By monitoring the compass bearing, one can assess the potential danger and take necessary actions to avoid a collision.

A beacon is a fixed structure used as a navigational aid to guide ships and boats. It is typically built on land or on a fixed platform in the water. Beacons are designed to emit light or other signals to help vessels determine their position and avoid hazards. They are often used to mark channels, shoals, or other important points along a coastline or in a body of water. Unlike buoys or floating markers, which can move with the currents or tides, beacons remain in a fixed location.

The weight of the boat's anchor should be one and a half times the length of the boat in meters. This means that if the boat is 10 meters long, the anchor should weigh 15 kilograms. This ratio ensures that the anchor is heavy enough to securely hold the boat in place, but not too heavy that it becomes difficult to lift or maneuver.

According to the MPA (Port) Regulations, it is stated that no vessel should come within a certain distance of another vessel that is displaying quarantine, customs, or immigration signals. The correct answer, 200m, implies that any vessel should maintain a distance of at least 200 meters from a vessel displaying these signals. This regulation ensures the safety and security of both vessels and helps to prevent the spread of any potential risks or hazards.

Pulau Sebarok is located south of the Singapore mainland.

Vessels should keep a distance of 200m away from a vessel displaying the quarantine, customs, or immigration signals. This distance is necessary to ensure the safety and privacy of the vessel displaying the signals, as well as to prevent any potential spread of contagious diseases or unauthorized entry. By maintaining this distance, other vessels can avoid any potential risks or interference with the vessel displaying the signals.

When a power-driven vessel crosses the path of a fishing vessel, it is the responsibility of the power-driven vessel to give way to the fishing vessel. This is because the fishing vessel is engaged in a specific activity (fishing) and may have limited maneuverability. Therefore, the power-driven vessel should take necessary actions to avoid a collision and allow the fishing vessel to continue its fishing operations safely.

To prevent swamping in a heavy sea, the best course of action is to use the engines and stem the waves and the seas. This means using the power of the engines to navigate through the waves and seas in a controlled manner, rather than being at the mercy of the rough conditions. This allows the boat to maintain stability and avoid being overwhelmed by the water, reducing the risk of swamping. Stopping the engines or letting go the anchor may not provide enough control or stability in such conditions, while filling the boat with water would only make the situation worse.

According to the International Regulations for Prevention of Collisions at Sea, a "vessel constrained by her draught" is required to display a black cylinder during the day. This visual signal helps other vessels understand that the constrained vessel has limited maneuverability due to its draft and needs to be given priority and space. The black cylinder serves as a clear indication to other vessels to take necessary precautions and avoid any potential collisions.

A vessel that is restricted in her ability to maneuver displays three all-round lights in a vertical line, with the top and bottom lights being red and the middle light being white. This configuration is used to indicate to other vessels that the restricted vessel is unable to move freely and may have limited maneuverability. The red lights on the top and bottom serve as a warning to other vessels to keep clear, while the white light in the middle helps to distinguish the vessel from other types of vessels displaying only red lights.

When in doubt of the intention of the "Give-way" vessel, the "Stand-on" vessel shall sound 5 or more short blasts. This signal is used to indicate doubt or uncertainty about the actions or intentions of the other vessel, and serves as a warning to alert the other vessel to take necessary action to avoid a collision.

The chart symbol for reef is represented by a green color with a jagged edge. This symbol is commonly used in nautical charts to indicate the presence of a reef, which is a submerged ridge of rock or coral near the surface of the water. The green color represents the underwater nature of the reef, while the jagged edge signifies the irregular and uneven shape of the reef. This symbol helps mariners to navigate safely and avoid potential hazards in the water.

When a vessel is overtaking another at night, she would be able to see only one white light, which is the stern light. This light is located at the back (stern) of the vessel being overtaken and helps the overtaking vessel determine the position and movement of the vessel ahead. The green and red lights (side lights) are not visible when overtaking, as they are positioned on the sides of the vessel. The masthead light, which is also visible from the front of the vessel, is not relevant in this situation.

The correct answer is the latitude scale on the chart. Latitude is a measurement of distance north or south of the equator, and it is represented by horizontal lines on a map or chart. By using a divider against the latitude scale, you can accurately measure the distance between two points along the same line of latitude on the chart.

A clearing bearing refers to bearings that are used to indicate dangers to navigation. These bearings help mariners or sailors to navigate through hazardous areas by providing them with information about potential obstacles or hazards in the water. They are often marked on navigational charts or buoys to ensure safe passage for ships and boats.

The speed limit imposed by the MPA on all rivers in Singapore is 5 knots. This means that vessels are not allowed to exceed a speed of 5 knots while navigating in rivers in Singapore.

The function of the "Compass Rose" is to determine the bearing of a track or course. It helps in identifying the direction in which a person or object is moving. This is essential for navigation purposes, especially in marine and aviation industries, where accurate tracking is crucial for safety and efficiency. The compass rose provides a visual representation of the cardinal directions (north, south, east, and west) and their intermediate points, allowing users to determine their current heading and make necessary adjustments.

During daylight, a sailing vessel under sail and power is required to display a black cone with the apex pointing downward. This signal indicates that the vessel is both under sail and using its engines. It is important for other vessels to be aware of this, as it may affect the sailing vessel's maneuverability and speed. Displaying the black cone helps to ensure safe navigation and prevent collisions at sea.

To ensure that the pull on the anchor is horizontal, a short length of chain should be attached to the anchor. This helps to prevent the anchor from being pulled upwards or at an angle by the force of the water or wind. By using enough cable or line, the anchor will be able to sit horizontally on the seabed or ground, providing the most effective holding power. This horizontal pull helps to keep the boat or vessel in place and prevents it from drifting or being pulled in different directions.

The correct answer is 2 black spheres. The isolated danger buoy is marked with two black spheres to indicate a significant hazard or danger in the vicinity. This marking is used to warn ships to keep a safe distance from the buoy to avoid any potential danger.

A jet-ski should keep a distance of 900m away from the shoreline along the East Coast Beach. This distance is likely to be a safety measure to ensure that the jet-ski does not pose a risk to swimmers, beachgoers, or any other watercraft near the shore. Keeping a significant distance from the shoreline helps to prevent accidents and collisions and allows for a safer and more enjoyable experience for everyone on the beach.

As per the MPA regulations, all pleasure craft more than 9 metres in length are required to carry 2 fire buckets. This regulation is in place to ensure the safety of the passengers and crew on board in case of a fire emergency. Having two fire buckets allows for a backup in case one becomes damaged or unusable. It also ensures that there is enough firefighting equipment available to effectively combat a fire on board a larger vessel.

When anchoring, it is a common rule of thumb to use a length of rope or chain four times the depth of water. This is because using a longer length of rope or chain helps to ensure that the anchor remains securely in place, even if there are changes in tide or strong currents. By using a length that is four times the depth of water, there is enough slack in the rope or chain to accommodate these variations and prevent the anchor from dragging or becoming dislodged.

The correct answer is "Licensed as 'SZ' once every 36 months and 'SZH' once every 12 months." This means that the Port Master will inspect the pleasure craft with the license "SZ" every 36 months, and the pleasure craft with the license "SZH" every 12 months. This schedule ensures that both types of pleasure craft are inspected regularly, with the "SZH" craft being inspected more frequently than the "SZ" craft.

A pilot vessel on duty at night shall display the lights "white over red" because this combination indicates that the vessel is a pilot vessel and is engaged in pilotage duties. This lighting configuration helps other vessels identify and recognize the pilot vessel, allowing them to take necessary precautions and give way as required.

Both vessels should give way to each other. In a head-on situation with a risk of collision, both vessels are required to take action to avoid the collision. This is because neither vessel has the right of way over the other. By both vessels giving way to each other, they can alter their course or speed to pass each other safely and avoid a collision.

A vessel engaged in dredging or underwater operations is restricted in her ability to maneuver because she is occupied with these specific tasks. Dredging or underwater operations require the vessel to remain stationary or move in a limited area, making it difficult for the vessel to navigate freely. This restriction is necessary to ensure the safety and efficiency of the dredging or underwater operations being conducted.

The hand flare can be seen up to 5 nautical miles away, indicating that it has a strong and visible light. However, it only lights up for 1 minute, which means that it has a limited duration of illumination. This suggests that the hand flare is designed to provide a short burst of light for emergency signaling purposes rather than long-lasting illumination.

Pleasure craft, whether fully or partially decked, are required to carry a minimum of 6 red hand flares onboard. These flares are essential for signaling distress or attracting attention in case of emergencies while out at sea. Having an adequate number of flares ensures the safety of the crew and passengers and increases the chances of being spotted by rescue teams or nearby vessels.

For an open deck pleasure craft of less than 20m, the number of red hand flares required is 3. This is because red hand flares are a type of distress signal used to attract attention in emergency situations. According to safety regulations, pleasure crafts of this size are required to carry a certain number of distress signals on board, including hand flares. In this case, the correct number of red hand flares required is 3.

Selat Sengkir is a prohibited area. This means that it is an area where certain activities are not allowed or are restricted. The question does not provide any additional information about the location or context of Selat Sengkir, so we cannot determine the specific reasons why it is prohibited. However, it could be due to safety concerns, environmental protection, or other regulations that prohibit certain activities in that area.

Selat Sengkir is a prohibited area off Pulau Brani. This means that access to Selat Sengkir is restricted and not allowed in order to maintain security or protect certain resources or activities in that area.

The symbol ('.+.' ) on the chart indicates an underwater rock.

When a vessel is in restricted visibility, it is important for other vessels to be aware of its presence and restricted maneuverability. The correct answer states that the vessel should sound 3 blasts in succession, specifically 1 prolonged blast followed by 2 short blasts. This sound signal is recognized internationally as a signal for a vessel that is restricted in her ability to maneuver, not under command, or constrained by her draught. By sounding this signal at intervals of not more than 2 minutes, the vessel alerts other vessels to its presence and allows them to take appropriate action to avoid a collision.

As per the International Regulations for Prevention of Collisions at Sea, a "vessel restricted in her ability to manoeuvre" is required to display a ball, a diamond, and a ball during the day. This signal indicates to other vessels that the vessel is unable to maneuver as freely as normal and may require additional space or caution.

The MPA imposes a speed limit of 12 knots in the East Johor Strait. This means that vessels navigating in this area should not exceed a speed of 12 knots to ensure safety and prevent any potential accidents or damage to the environment. This speed limit helps to regulate the flow of maritime traffic and maintain order in the strait.

The correct answer is Sinki Fairway. Sinki Fairway is the location of Cyreen Reef.

During the day, a vessel displaying three black balls signals that it is restricted in its ability to maneuver. At night, this vessel must display two red lights in a vertical line and one all-round white light. This combination of lights communicates the vessel's restricted maneuverability to other vessels, helping to prevent collisions and ensure safe navigation at night.