Road Rules 1dpa 70

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1. A vessel on a condition of having exceptional circumstances is considered as vessel as vessel not under command

Explanation

A vessel that is experiencing exceptional circumstances, such as being unable to maneuver due to mechanical failure or being caught in adverse weather conditions, is considered as a vessel not under command. This means that the vessel cannot follow the normal rules of navigation and other vessels should give it the right of way and take necessary actions to avoid a collision. Therefore, the statement "A vessel on a condition of having exceptional circumstances is considered as vessel not under command" is true.

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About This Quiz
Navigation Quizzes & Trivia

Road rules 1dpa 70 explores maritime navigation and collision prevention. It tests knowledge on vessel priority, radar usage, and actions during specific maritime encounters, aligning with the International... see moreRegulations for Preventing Collisions at Sea. see less

2. A vessel is said to be in sight of one another when you can see the navigational lights at night

Explanation

When a vessel is said to be in sight of one another, it means that the navigational lights of both vessels are visible to each other at night. This is an important safety measure to ensure that vessels can avoid collision and navigate safely. Therefore, the statement "A vessel is said to be in sight of one another when you can see the navigational lights at night" is true.

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3. A vessel shall proceed to a safe speed to stop within a distance appropriate to a prevailing situation

Explanation

This statement is true because it is a basic rule of navigation that a vessel should always be able to stop within a safe distance in order to avoid collisions or other dangerous situations. The speed at which a vessel can safely stop will depend on factors such as the size and maneuverability of the vessel, weather conditions, visibility, and the presence of other vessels or obstacles. By proceeding at a safe speed, a vessel can ensure that it has enough time and distance to react and take appropriate action if necessary.

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4. Acting accordingly is an action when an OOW is in doubt of the situation

Explanation

The statement is true because when an OOW (Officer of the Watch) is unsure or doubtful about a situation, it is important for them to act accordingly. This means that they should take appropriate actions based on their training and experience to ensure the safety of the vessel and its crew. Acting accordingly in such situations helps to minimize the risk of accidents or incidents at sea.

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5. An overtaken vessel is relieved of her obligation to keep clear if the overtaking vessel is past and clear

Explanation

When a vessel is being overtaken by another vessel, the overtaken vessel is required to keep clear and allow the overtaking vessel to pass safely. However, once the overtaking vessel has successfully passed and is no longer in a position to collide with the overtaken vessel, the overtaken vessel is relieved of its obligation to keep clear. Therefore, the statement is true.

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6. A vessel that came from an angle more than 22.5 degrees forward of the beam of the overtaken vessel is said to be an overtaking vessel

Explanation

When a vessel approaches another vessel from an angle greater than 22.5 degrees forward of the overtaken vessel's beam, it is considered to be an overtaking vessel. In other words, if the approaching vessel is coming from a position that is more towards the front of the overtaken vessel rather than from the side, it is classified as an overtaking vessel.

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7. When risk of collision exists a vessel may reduce speed provided it will not result to another close quarter situation

Explanation

When there is a risk of collision, a vessel may choose to reduce its speed in order to avoid a close quarter situation with another vessel. This means that if slowing down will help prevent a potential collision, it is a recommended action. However, it is important to note that reducing speed should only be done if it will not create another hazardous situation.

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8. Vessel constrain by draft is an example of a R.A.M. vessel which is unable to keep out the way of another to avoid collision

Explanation

The statement is true because a vessel constrained by draft refers to a ship that is limited in its ability to maneuver due to its draft or depth in the water. These vessels are often large and have a deep draft, which restricts their ability to change course or avoid collisions easily. Therefore, they may be unable to keep out of the way of another vessel to avoid a collision, making the statement true.

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9. Limitations of the other vessel may be a reason for your vessel to depart from the rule

Explanation

The statement is suggesting that if another vessel has limitations, it may be necessary for your vessel to depart from the rule. This implies that there are situations where following the rule may not be feasible or safe due to the limitations of another vessel. Therefore, the statement is true as it highlights the possibility of departing from the rule under certain circumstances.

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10. A special rule made by any state can interfere with an international rule regarding ship design and construction

Explanation

A special rule made by any state can interfere with an international rule regarding ship design and construction. This is because states have the authority to create their own rules and regulations, which may differ from international standards. Therefore, if a state decides to implement a special rule regarding ship design and construction, it can potentially contradict or override the international rule on the same subject.

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11. She is an aircraft designed to maneuver in the water using the ground effect principle

Explanation

not-available-via-ai

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12. The word high seas in the international regulation for preventing collision at sea refers to

Explanation

The term "high seas" in the international regulation for preventing collision at sea refers to the open sea. This term is used to describe the waters that are not under the jurisdiction of any specific country and are considered to be international waters. It is important for ships and vessels to understand and follow the regulations in these areas to ensure safe navigation and avoid collisions. The term does not refer to the depth of the water, coral reefs, or dockyards, but specifically to the open sea.

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13. What two rule numbers require the mandatory use of radar

Explanation

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14. Which of the following vessel is unable to keep out the way of the other due to the nature of her work

Explanation

R.A.M. stands for Restricted in Ability to Maneuver. This means that the vessel is unable to keep out of the way of other vessels due to the nature of her work. Restricted in Ability to Maneuver vessels are typically large, slow-moving ships such as tankers or cargo ships that require a significant amount of time and space to change course or stop. This restriction is usually due to the vessel's size, draft, or the nature of the cargo it is carrying.

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15. Anchoring may be allowed in the TSS only on its termination of the lane

Explanation

Anchoring is not allowed in the TSS on its termination of the lane. This means that once a vehicle reaches the end of the lane, it is not permitted to anchor or stop in that area.

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16. All vessels are allowed to use the traffic separation scheme

Explanation

The statement indicates that all vessels are permitted to use the traffic separation scheme. This means that regardless of the type or size of the vessel, they are allowed to navigate within the designated traffic separation scheme.

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17. You are a fishing vessel engaged in fishing, which of the folowing vessels should you keep clear of

Explanation

A fishing vessel should keep clear of a R.A.M. (Restricted in Ability to Maneuver) vessel. This is because a R.A.M. vessel is limited in its ability to maneuver due to its size, shape, or draft. As a fishing vessel, it is important to avoid any potential collision or interference with other vessels, especially those that have restricted maneuverability.

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18. Why long range scanning in the operation of radar is necessary for collision avoidance

Explanation

Long range scanning in the operation of radar is necessary for collision avoidance because it provides an early warning system. By scanning a wide area, radar can detect potential collisions at a distance, allowing for more time to take evasive action and prevent accidents. This early warning system is crucial for collision avoidance as it helps to prevent delays in approaching objects and ensures that standard operating procedures are followed to maintain safety.

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19. What is the rule number of sailing vessel

Explanation

Rule 12 of the International Regulations for Preventing Collisions at Sea (COLREGS) states the conduct of sailing vessels. It outlines the right of way for sailing vessels, stating that they have the right of way over motorized vessels in certain situations. This rule helps to ensure the safety and proper navigation of sailing vessels in relation to other vessels at sea.

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20. You are on navigational watch, you observed a vessel on your radar whose bearing does not change and closing in, under what rule in the International Rule on Preventing Collision at Sea this topic is best discussed.

Explanation

This topic is best discussed under Rule 7 of the International Rule on Preventing Collision at Sea. Rule 7 states that every vessel shall use all available means to determine if risk of collision exists, including the use of radar. If a vessel is observed on radar and its bearing does not change while closing in, it indicates a potential risk of collision and the appropriate actions should be taken to avoid it.

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21. When can a sailing vessel be treated as a power driven vessel

Explanation

A sailing vessel can be treated as a power driven vessel when she is using her propulsive power. This means that she is no longer relying solely on wind power to move and is instead using her engine or motor to propel herself. In this state, she will be subject to the rules and regulations that apply to power driven vessels rather than those that apply to sailing vessels.

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22. You are a vessel engaged in fishing, which part of the traffice separation scheme you are allowed to lay your net

Explanation

As a vessel engaged in fishing, you are allowed to lay your net in the traffic separation lane or zone. This is because the traffic separation scheme is specifically designed to separate opposing streams of traffic and ensure the safe and efficient flow of vessels. However, it is important to note that you must still follow Rule 18, which requires you to avoid impeding the passage of other vessels and take necessary actions to prevent collisions.

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23. The term underway includes vessel totally stopped on the water

Explanation

The statement is true because the term "underway" refers to a vessel that is in motion or moving on the water. It does not matter if the vessel is completely stopped or moving slowly, as long as it is on the water, it is considered underway.

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24. Rule 17 directs a give way vessel to take action by maneuver alone when a stand on vessel fails to take an action to avoid collision

Explanation

Rule 17 of the International Regulations for Preventing Collisions at Sea (COLREGS) actually states that the stand-on vessel must maintain its course and speed unless it is apparent that the give-way vessel is not taking appropriate action to avoid a collision. In this case, the stand-on vessel may take action to avoid the collision. Therefore, the given statement is false.

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25. How are you going to cross a traffic scheme from the side

Explanation

To cross a traffic scheme from the side at a right angle means to approach the intersection perpendicularly to the opposite traffic lane. This ensures a safer and more efficient maneuver as it allows for better visibility and reduces the risk of collisions with oncoming traffic. By crossing at a right angle, the driver can navigate the intersection smoothly and minimize the chances of causing any disruptions or accidents.

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26. A vessel proceeding on a safe speed shall consider the following factor except

Explanation

When a vessel is proceeding at a safe speed, it needs to consider various factors to ensure its safety. These factors include the draught of the vessel in relation to the depth of the water, traffic density, and restricted visibility. However, night time is not a factor that needs to be considered separately, as it falls under the category of restricted visibility. Therefore, the correct answer is night time.

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27. In what rule number is the statement "positive, ample time and performance of good seamanship" is best discussed

Explanation

Rule 8 of the International Regulations for Preventing Collisions at Sea (COLREGS) is the best rule to discuss the statement "positive, ample time and performance of good seamanship." Rule 8 states that "any action taken to avoid collision shall be taken in accordance with the Rules of this Part and shall, if the circumstances of the case admit, be positive, made in ample time and with due regard to the observance of good seamanship." This rule emphasizes the importance of taking timely and decisive actions to avoid collisions while also considering the principles of good seamanship.

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28. Under Rule no. 2 paragraph b, which of the following reasons is considered best when departing from the rule

Explanation

When there is immediate danger is considered the best reason for departing from the rule under Rule no. 2 paragraph b. This is because the safety of the vessel and its crew is of utmost importance, and if there is an immediate danger that could potentially harm the vessel or its occupants, it is necessary to deviate from the rule in order to avoid the danger and ensure the safety of everyone on board.

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29. What is the best description of a vessel engaged in fishing

Explanation

A vessel engaged in fishing is restricted to maneuver due to her fishing gear. This means that the fishing gear, such as nets or lines, can limit the vessel's ability to change direction or avoid obstacles. The fishing gear may be spread out in the water, making it difficult for the vessel to navigate freely. Therefore, the vessel is unable to keep out of the way of another vessel or maintain a clear path.

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30. Which statement is true concerning the use of operational radar

Explanation

Radar can be used in any condition of visibility because it is capable of detecting and tracking objects even in low visibility situations such as fog, rain, or darkness. It provides valuable information about the position, speed, and direction of other vessels or objects in the vicinity, enhancing situational awareness and aiding in collision avoidance. Therefore, radar is not limited to being used only in restricted visibility but can be utilized in any weather or visibility condition to improve navigation safety.

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31. Who is the stand on vessel between a mine clearance vessel and a fishing vessel in a crossing situation

Explanation

The correct answer is "mine clearing vessel because of her condition." In a crossing situation, the stand on vessel is typically the vessel that is less maneuverable or restricted in its ability to change course or speed. Since the mine clearing vessel is involved in a specific task and may have limited maneuverability due to its equipment or operations, it is considered the stand on vessel in this situation.

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32. What is the best action to avoid collision when there is enough sea room

Explanation

The best action to avoid collision when there is enough sea room is to alter the course. By changing the direction of the vessel, it creates a greater distance between the two objects and reduces the risk of a collision. This action is effective when there is sufficient space to maneuver and allows for a safe passage without the need to reduce speed or sound signals.

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33. Rule number 16 refers to

Explanation

Rule number 16 in the context of maritime regulations pertains to the actions that should be taken by the vessel that is required to give way to another vessel. This rule outlines the specific responsibilities and obligations of the give-way vessel in terms of altering its course or speed to avoid a potential collision. It emphasizes the importance of taking timely and appropriate actions to ensure the safety of both vessels involved.

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34. What will be the sound signal of an overtaken vessel in agreement in an overtaking situation in the narrow channel

Explanation

In an overtaking situation in a narrow channel, the sound signal of one long blast followed by one short blast, repeated in the same sequence, is used. This signal indicates that the overtaken vessel agrees with the overtaking vessel's intention to pass and gives its consent for the maneuver.

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35. How does an action by give way vessel be effective

Explanation

When an action by a give way vessel is done early and substantial, it means that the vessel takes prompt and significant measures to avoid a collision. By altering its course to port (left), the give way vessel effectively shows its intention to yield and allows the stand on vessel to maintain its course and speed. This early and substantial action helps in preventing a potential collision and ensures the safety of both vessels.

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36. Only vessel navigating safely in the fairway of a narrow channel is allowed to use the channel

Explanation

The correct answer is False. This statement is incorrect because multiple vessels can navigate safely in the fairway of a narrow channel. The fairway is designed to accommodate the passage of multiple vessels, and as long as they are following the proper rules and regulations, they can all use the channel safely.

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37. What appropriate action should you take when you are approaching an obscurred bend and found another vessel on the other side of the channel on opposite direction

Explanation

When approaching an obscured bend and encountering another vessel on the opposite side of the channel, it is appropriate to maintain course and speed. By doing so, you are indicating that you will continue on your current path and are making your presence known to the other vessel. Additionally, sounding one long blast will further alert the other vessel of your presence and help prevent a potential collision.

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38. In determining safe speed, all of the following factors shall be taken into account except one

Explanation

When determining safe speed, factors such as the presence of background light, state of visibility, and maneuverability of the vessel are important to consider. However, the length and width of the vessel itself does not directly impact the safe speed. The size of the vessel may affect other aspects such as stability and handling, but it is not a determining factor in setting the safe speed.

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39. You see a vessel who is required to keep out the way of another is taking an appropriate action in a crossing situation, what will be your possible action as stand on vessel

Explanation

As a stand on vessel, your possible action would be to maintain your course and speed. This is because the vessel who is required to keep out of the way of another is already taking appropriate action in the crossing situation. By maintaining your course and speed, you are allowing the give-way vessel to navigate around you safely. Altering course to port towards the other vessel or increasing your speed could potentially create confusion and increase the risk of a collision. Sounding an appropriate signal for a crossing situation is not necessary in this scenario as the other vessel is already taking appropriate action.

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40. What light or lights can be seen from the overtaken vessel when you are within the 22.5 degrees abaft the beam

Explanation

When a vessel is overtaking another vessel, it is required to exhibit either the green or the red lights. These lights are known as the sidelights and are visible from the overtaken vessel when the overtaking vessel is within the 22.5 degrees abaft the beam. The purpose of these lights is to indicate the direction in which the overtaking vessel is approaching from. Therefore, the correct answer is either the green or the red lights.

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41. In an overtaking situation, what rule shall prevail when a vessel cross your bow from an overtaking situation

Explanation

In an overtaking situation, the rule that shall prevail is the overtaking followed by crossing rules. This means that the vessel that is overtaking another vessel has the responsibility to keep clear and avoid crossing the bow of the vessel being overtaken. The vessel being overtaken has the right of way and should maintain its course and speed. This rule helps to ensure safety and prevent collisions during overtaking maneuvers.

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42. You are an officer on navigational watch, how can a vessel be in sight

Explanation

A vessel can be considered "in sight" if it can be seen visually from the bridge. This means that the officer on navigational watch is able to physically see the vessel with their own eyes. This is the most reliable way to confirm the presence of another vessel and ensure safe navigation.

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43. Which of the following conditions does not define a vessel constrain by draft

Explanation

This condition does not define a vessel constrained by draft because being in deep water does not impose any restrictions or limitations on the vessel's draft. The draft of a vessel refers to the vertical distance between the waterline and the deepest part of the vessel below the water's surface. In deep water, the vessel has sufficient depth to navigate without any concerns about draft limitations. Therefore, this condition is not relevant to defining a vessel constrained by draft.

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44. You are in a restricted visibility and you hear a for singal forward of your port beam, what will be your possible action to avoid collision

Explanation

Slackening your speed would be a possible action to avoid collision in restricted visibility if you hear a fog signal forward of your port beam. By reducing your speed, you give yourself more time to assess the situation and react accordingly. This can help prevent a potential collision and give you more control over your vessel in the limited visibility conditions.

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45. You are a power driven vessel and sees a vessel constrain by draft on your port side and crossing, which is the stand on vessel between you and the other vessel

Explanation

The vessel constrained by draft is the stand on vessel because it is restricted in its ability to maneuver due to its draft. As a power-driven vessel, you have the responsibility to give way to the stand on vessel. This is because the stand on vessel has the right of way in this situation.

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46. What is your best action to take as a give way vessel knowing that a stand on vessel has made an avoiding action on a crossing situation 

Explanation

In a crossing situation, when a stand on vessel has already taken avoiding action, the best action for the give way vessel would be to give a wide space. This means that the give way vessel should alter its course or speed in order to create a significant distance between the two vessels, ensuring a safe passage and avoiding any potential collision. This action allows both vessels to navigate the crossing situation without any risk or interference.

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47. A stand on vessel in a crossing situation is not relieved of her obligaion to give a wide space after a give way vessel has made an action

Explanation

In a crossing situation, the stand on vessel is indeed relieved of her obligation to give a wide space after a give way vessel has made an action. The stand on vessel has the right of way and the give way vessel must take appropriate action to avoid a collision. Therefore, the correct answer is False.

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48. A crossing vessel may sound the appropriate signal of one line blast when she intend to cross another

Explanation

A crossing vessel does not sound the appropriate signal of one line blast when she intends to cross another. The appropriate signal for a crossing vessel is two short blasts, not one long blast. Therefore, the statement is false.

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49. What will be your action after knowing that another vessel is 5 degrees on your port bow having the same heading with you and closing in a narrow channel

Explanation

When another vessel is 5 degrees on your port bow, it means that the other vessel is approaching from the left side of your vessel. In this situation, the correct action is to alter course to starboard and give way to the vessel on your port bow. This means that you should steer your vessel to the right and allow the other vessel to pass on your left side. This action helps to avoid a potential collision and follows the standard rules of navigation for vessels encountering each other in a narrow channel.

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50. Which of the following is the appropriate action to make when crossing a narrow channel

Explanation

When crossing a narrow channel, it is important to keep clear of the vessel that is navigating safely through the channel. This means giving the right of way to the vessel that is already in the channel and ensuring that there is enough distance between your vessel and the navigating vessel to avoid any potential collisions or interference with its path. By keeping clear, you are prioritizing the safety and navigation of the vessel that is already in the narrow channel.

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51. In a head on situation one vessel is directed to keep clear and the other shall maintain her course and speed

Explanation

False. In a head-on situation, both vessels are required to alter their course to starboard (right) to avoid a collision. They should also reduce their speed and maintain a safe distance between each other. This is stated in the International Regulations for Preventing Collisions at Sea (COLREGS) Rule 14. Therefore, it is incorrect to say that one vessel is directed to keep clear while the other maintains her course and speed.

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52. You are the OOW of a vessel MV Tucon and found another vessel on your starboard side tend to cross your stern, what will be your action

Explanation

Maintaining course and speed would be the appropriate action in this situation. By maintaining course and speed, the OOW is indicating that they will continue on their current path and speed, allowing the other vessel to maneuver and cross their stern safely. This is a common practice to avoid confusion and potential collisions when encountering other vessels.

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53. Between a fishing vessel with nets, lines on board and a power driven vessel on a head on situation, who shall keep out the way of the other

Explanation

Both the fishing vessel and the power-driven vessel should keep out of the way of each other. This means that both vessels have a responsibility to take action to avoid a collision. The specific rules for determining which vessel should give way may depend on the situation and the navigation rules in place, but in this case, it is not clear which vessel should have the right of way. Therefore, both vessels should take appropriate measures to avoid a potential collision.

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54. What will be your action if you hear a for signal 22.5 degrees aft of your starboard beam

Explanation

If you hear a fog signal 22.5 degrees aft of your starboard beam, it means that there is another vessel in your vicinity. In this situation, it is important to navigate with caution, as there is a possibility of a potential collision. This means that you should be alert and take necessary measures to avoid any accidents, such as adjusting your course or speed accordingly.

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55. You are going to avoid a close quarter situation, which of the following is the appropriate action

Explanation

When trying to avoid a close quarter situation, it is important to make a course change that is large enough to create a sufficient distance between vessels. Making a succession of small course changes may not be effective in quickly creating enough distance to avoid a potential collision. Assessing the situation and determining the distance of the vessel are important steps in making the appropriate course change.

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56. The effectiveness of action to avoid collision depends on careful checking until the vessel is abeam

Explanation

The statement is false because the effectiveness of action to avoid collision does not solely depend on careful checking until the vessel is abeam. While careful checking is important, other factors such as communication, maneuvering, and following the rules of navigation also play a crucial role in avoiding collisions.

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57. How does overtaking takes place in a narrow channel

Explanation

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58. What is the advantage of a large angle alteration as a course of action to avoid collision

Explanation

A large angle alteration as a course of action to avoid collision would be advantageous because it would make it more apparent to another vessel that there is an action being taken to avoid the close quarter situation. This would help in alerting the other vessel to the presence and intentions of the ship, reducing the risk of a collision.

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59. You are a sailing vessel having the port wind and other sailing vessel close abreast on your portside having the same wind, what action should you take base on the rule

Explanation

Based on the given scenario, where you are a sailing vessel with the wind coming from the port side and there is another sailing vessel close to you on your port side with the same wind, the correct action to take is to navigate with caution. This means that you should be aware of the potential risks and hazards in the situation and proceed with caution to avoid any collisions or accidents. It is important to be vigilant and make any necessary adjustments to your course or speed to ensure the safety of both vessels.

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60. You are a sailing vessel with the wind on your port side and found another sailing vessel dead ahead with her sail on the port side and closing, what will be your action to avoid collision

Explanation

In this situation, the correct action to avoid a collision would be to keep clear of the other sailing vessel as far as practicable. This means that you should take any necessary actions to ensure a safe distance between the two vessels, such as altering your course or speed. It is important to prioritize safety and avoid any potential collisions by giving way to the other vessel.

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61. When an international rule cannot be complied by newly constructed vessels as to the technical description of lights, how can this be complied by a local rule

Explanation

The correct answer is "it shall conform closely with the international rules." This means that even if a newly constructed vessel cannot fully comply with the technical description of lights according to international rules, the local rule should still strive to closely align with those international rules. While some adjustments may be necessary due to specific circumstances or limitations, the goal is to ensure that the local rule is as consistent as possible with the international standards.

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62. Which of the following vessels is exempted from the rules of the traffic separation scheme

Explanation

A submarine cable layer in operation is exempted from the rules of the traffic separation scheme. This is because a submarine cable layer is responsible for laying and maintaining submarine cables, which are essential for telecommunications and other purposes. Due to the nature of their work, submarine cable layers may need to deviate from the normal traffic separation scheme to ensure the proper installation and maintenance of these cables. Therefore, they are exempted from the rules to allow them the flexibility and freedom to carry out their tasks effectively.

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63. In collision avoidance, what is the purpose of using the engines

Explanation

The purpose of using the engines in collision avoidance is to give the ship or vehicle time to assess the situation. By using the engines, the ship or vehicle can slow down, change direction, or stop in order to evaluate the potential collision and determine the best course of action. This allows for more time to make decisions and avoid a collision.

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64. If you are a vessel approaching a traffic scheme from the termination of the lane, how are you going to join the general traffic flow

Explanation

When approaching a traffic scheme from the termination of the lane, it is recommended to keep near the outer limit on your starboard side. This means that you should stay close to the right-hand side of the lane. By doing so, you will be able to smoothly merge into the general traffic flow without obstructing other vessels. This approach ensures a safer and more efficient flow of traffic within the scheme.

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65. You are approaching a dense traffic and you are proceeding on a safe speed, how much speed will it be

Explanation

When approaching dense traffic, it is important to adjust your speed to the prevailing situation. This means that you should maintain a speed that is suitable and safe given the traffic conditions. It may be necessary to slow down or even stop completely in order to avoid collisions or navigate through the traffic safely. The correct answer suggests that the speed should be appropriate to the prevailing situation, indicating the need to adapt and match the speed to the conditions at hand.

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66. You are power driven vessel and sees a vessel dead ahead and showing her stern light and distance is closing in, what appropriate action should you give

Explanation

When done early and substantial refers to taking immediate and significant action to avoid a collision. In this situation, the appropriate action would be to alter course to starboard and pass the other vessel port to port. This means changing direction to the right and passing the other vessel on its left side. This action is necessary to avoid a head-on collision and is a standard practice for power-driven vessels encountering another vessel showing its stern light.

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67. When the heading of two approaching vessel is on a reciprocal, but only the port sidelight is visible, what will be your action

Explanation

If the heading of two approaching vessels is on a reciprocal, but only the port sidelight is visible, it means that the other vessel is approaching from the starboard side. In this situation, the correct action would be to maintain course and speed. This is because the port sidelight indicates that the other vessel is to the left of your vessel, and therefore, you have the right of way. By maintaining course and speed, you are following the rules of navigation and allowing the other vessel to take appropriate action to avoid a collision.

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68. Which statement is true concerning risk of collision

Explanation

When the statement says "the distance of the other vessel is closing in with the same bearing," it means that the distance between the two vessels is decreasing, and they are maintaining the same relative position to each other. This indicates that there is a risk of collision because the vessels are on a converging course.

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69. Between the 2 power driven vessels on a crossing situation in the narrow channel, the vessel on the starboard side of the other is stand on vessel

Explanation

In a crossing situation in a narrow channel between two power driven vessels, the vessel on the starboard side is not necessarily the stand on vessel. The stand on vessel is determined by the International Regulations for Preventing Collisions at Sea (COLREGS) and depends on factors such as the vessels' positions, courses, and speeds. Therefore, the statement that the vessel on the starboard side is always the stand on vessel is false.

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70. Which of the following vessel is allowed to use the traffic separation zone as specified under the rule

Explanation

The vessel en route while crossing is allowed to use the traffic separation zone as specified under the rule. This means that if a vessel is actively crossing a waterway, it is permitted to use the designated traffic separation zone to navigate through the area. This is because the traffic separation zone is specifically designed to separate vessels traveling in different directions and to ensure safe and efficient navigation.

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A vessel on a condition of having exceptional circumstances is...
A vessel is said to be in sight of one another when you can see the...
A vessel shall proceed to a safe speed to stop within a distance...
Acting accordingly is an action when an OOW is in doubt of the...
An overtaken vessel is relieved of her obligation to keep clear if the...
A vessel that came from an angle more than 22.5 degrees forward of the...
When risk of collision exists a vessel may reduce speed provided it...
Vessel constrain by draft is an example of a R.A.M. vessel which is...
Limitations of the other vessel may be a reason for your vessel to...
A special rule made by any state can interfere with an international...
She is an aircraft designed to maneuver in the water using the ground...
The word high seas in the international regulation for preventing...
What two rule numbers require the mandatory use of radar
Which of the following vessel is unable to keep out the way of the...
Anchoring may be allowed in the TSS only on its termination of the...
All vessels are allowed to use the traffic separation scheme
You are a fishing vessel engaged in fishing, which of the folowing...
Why long range scanning in the operation of radar is necessary for...
What is the rule number of sailing vessel
You are on navigational watch, you observed a vessel on your radar...
When can a sailing vessel be treated as a power driven vessel
You are a vessel engaged in fishing, which part of the traffice...
The term underway includes vessel totally stopped on the water
Rule 17 directs a give way vessel to take action by maneuver alone...
How are you going to cross a traffic scheme from the side
A vessel proceeding on a safe speed shall consider the following...
In what rule number is the statement "positive, ample time and...
Under Rule no. 2 paragraph b, which of the following reasons is...
What is the best description of a vessel engaged in fishing
Which statement is true concerning the use of operational radar
Who is the stand on vessel between a mine clearance vessel and a...
What is the best action to avoid collision when there is enough sea...
Rule number 16 refers to
What will be the sound signal of an overtaken vessel in agreement in...
How does an action by give way vessel be effective
Only vessel navigating safely in the fairway of a narrow channel is...
What appropriate action should you take when you are approaching an...
In determining safe speed, all of the following factors shall be taken...
You see a vessel who is required to keep out the way of another is...
What light or lights can be seen from the overtaken vessel when you...
In an overtaking situation, what rule shall prevail when a vessel...
You are an officer on navigational watch, how can a vessel be in sight
Which of the following conditions does not define a vessel constrain...
You are in a restricted visibility and you hear a for singal forward...
You are a power driven vessel and sees a vessel constrain by draft on...
What is your best action to take as a give way vessel knowing that a...
A stand on vessel in a crossing situation is not relieved of her...
A crossing vessel may sound the appropriate signal of one line blast...
What will be your action after knowing that another vessel is 5...
Which of the following is the appropriate action to make when crossing...
In a head on situation one vessel is directed to keep clear and the...
You are the OOW of a vessel MV Tucon and found another vessel on your...
Between a fishing vessel with nets, lines on board and a power driven...
What will be your action if you hear a for signal 22.5 degrees aft of...
You are going to avoid a close quarter situation, which of the...
The effectiveness of action to avoid collision depends on careful...
How does overtaking takes place in a narrow channel
What is the advantage of a large angle alteration as a course of...
You are a sailing vessel having the port wind and other sailing vessel...
You are a sailing vessel with the wind on your port side and found...
When an international rule cannot be complied by newly constructed...
Which of the following vessels is exempted from the rules of the...
In collision avoidance, what is the purpose of using the engines
If you are a vessel approaching a traffic scheme from the termination...
You are approaching a dense traffic and you are proceeding on a safe...
You are power driven vessel and sees a vessel dead ahead and showing...
When the heading of two approaching vessel is on a reciprocal, but...
Which statement is true concerning risk of collision
Between the 2 power driven vessels on a crossing situation in the...
Which of the following vessel is allowed to use the traffic separation...
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