1.
When towing, a tow hook is used to:
Correct Answer
A. Provide a quick release of the hawser
Explanation
A tow hook is used to provide a quick release of the hawser. This means that it allows for the hawser (a thick rope or cable used for towing) to be easily and quickly detached when necessary. This is important in towing operations as it allows for swift disconnection in case of emergencies or when the towed object needs to be released quickly.
2.
Which of the following statements concerning an automatic towing engine is not true?
Correct Answer
C. As tension on the hawser increases, more line is taken in by the automatic towing engine
Explanation
The automatic towing engine does not take in more line as tension on the hawser increases. This statement is not true because the automatic towing engine is designed to automatically maintain towline tension, not to take in more line as tension increases.
3.
A tug is to assist in docking an oceangoing vessel on a hawser. The greatest danger to the tug is:
Correct Answer
D. From tripping
Explanation
The greatest danger to the tug is from tripping. Tripping refers to the sudden release of tension in the hawser, which can cause the tug to lose balance and potentially capsize. This is a significant risk during the docking process, as the tug is assisting the oceangoing vessel and is in close proximity to the hawser. If the tension is released abruptly, it can destabilize the tug and put it at risk. Therefore, tripping poses the greatest danger to the tug during docking operations.
4.
For reconnecting the tow line after it has broken, it is better to use a polypropylene messenger line because it:
Correct Answer
C. Floats
Explanation
A polypropylene messenger line is better for reconnecting the tow line after it has broken because it floats. This characteristic makes it easier to handle and reduces the risk of tangling or getting caught in underwater obstacles. Additionally, a floating line is more visible, which enhances safety during the reconnection process.
5.
Two bars are very effective for manual cars.
Correct Answer
A. True
Explanation
Having two bars in a manual car is indeed very effective. These bars are commonly known as the clutch and the gear shift. The clutch bar allows the driver to engage or disengage the engine from the transmission, enabling smooth gear changes and preventing the car from stalling. The gear shift bar allows the driver to select the appropriate gear for the desired speed and driving conditions. Together, these two bars give the driver full control over the car's acceleration, deceleration, and overall performance, making them highly effective in manual cars.
6.
When towing astern, chafing gear should not be used on a hawser that is:
Correct Answer
B. Attached to a self-tensioning winch
Explanation
When towing astern, chafing gear should not be used on a hawser that is attached to a self-tensioning winch because the winch is designed to automatically adjust the tension in the hawser. Using chafing gear could interfere with the winch's ability to properly tension the hawser, potentially causing damage or compromising the towing operation.
7.
Tugs sometimes shackle a length of chain into the towline in order to:
Correct Answer
D. Put spring into the towline
Explanation
The reason why tugs sometimes shackle a length of chain into the towline is to put spring into the towline. This means that the chain adds tension and flexibility to the towline, allowing it to absorb shocks and sudden movements without breaking. By adding the chain, the towline becomes more elastic and less prone to snapping or causing damage to the vessel being towed.
8.
The vehicle that is being towed must be way heavier than towing vehicle, or it will create problems.
Correct Answer
B. False
Explanation
The statement is false because the vehicle being towed does not necessarily have to be heavier than the towing vehicle. The weight ratio between the two vehicles is not a determining factor for whether or not problems will occur during towing. Other factors such as the towing capacity of the vehicle, proper equipment, and safe towing practices are more important in ensuring a successful and problem-free towing experience.
9.
The vessel in Illustration DO25DG has broken down, and you are going to take her in tow. The wind is coming from her starboard beam, and both vessels are making the same amount of leeway. Where should you position your vessel when you start passing lines?
Correct Answer
C. Point C
Explanation
When taking a vessel in tow, it is important to position your vessel in a way that provides the most stability and control. In this scenario, since the wind is coming from the starboard beam of the vessel being towed, positioning your vessel at Point C would be ideal. This position allows your vessel to provide maximum support and stability to the vessel being towed, as it is positioned on the windward side of the towed vessel. This helps to minimize the impact of the wind and maintain control during the towing operation.
10.
The vessel in Illustration DO25DG has broken down, and you are going to take her in tow. The wind is coming from her starboard beam, and she is making more leeway than you are. Where should you position your vessel when you start passing lines?
Correct Answer
D. Point D
Explanation
When taking a vessel in tow, it is important to position your vessel in a way that allows for safe and effective towing. In this scenario, since the vessel in Illustration DO25DG is making more leeway than your vessel and the wind is coming from her starboard beam, it is best to position your vessel on her leeward side. This will help to stabilize both vessels and minimize the risk of collisions or accidents during the towing process. Therefore, Point D is the correct position to start passing lines.