Proceedings magazine is a communication tool for the Coast Guard's Marine Safety & Security Council. Each quarterly magazine focuses on a specific theme of interest to the marine industry.
Issue link: http://uscgproceedings.epubxp.com/i/264352
82 Proceedings Winter 2013–2014 www.uscg.mil/proceedings A Deck nswers 1. A. a diamond shape when the length of the tow is 200 meters or less Correct Answer. Reference: Rule 24(g) (iv) states that when an inconspicu- ous, partly submerged vessel or object is being towed, it shall display a diamond shape at or near the aftermost extremity. B. a diamond shape when the length of the tow exceeds 200 meters in length Incorrect Answer. Reference: Rule 24(g) (iv) states that if the length of the tow exceeds 200 meters and an additional diamond shape must be dis- played as far forward as possible C. a black ball Incorrect Answer. Reference: Rule 30 D. a black ball only when the length of the tow exceeds 200 meters in length Incorrect Answer. Reference: Rule 30 2. A. A special permit issued by the Coast Guard is required before bulk solid materials that require special handling are loaded. Incorrect Answer. Reference: 46 CFR 148.10 A material listed in Table 148.10 of this section may be transported as a bulk solid cargo on a vessel if it is carried according to this part. A material that is not listed in Table 148.10 of this section, but which is hazardous or a Potentially Dangerous Material (PDM), requires a Special Permit under §148.15 of this part to be transported on the navigable waters of the United States. B. Hazardous materials that require separation must not be handled at the same time. Correct Answer. Reference: 46 CFR 148.120 Materials that are required to be separated during stowage must not be handled at the same time. C. A certification issued by ABS will be accepted as evidence that the vessel com- plies with all applicable loading regulations. Incorrect Answer. Reference: 46 CFR 148.12 Certifcates of loading from the National Cargo Bureau are accepted as evidence of compliance with bulk solid transport regulations. D. The shipping papers can be used in lieu of a Dangerous Cargo Manifest for a vessel car- rying solid hazardous materials in bulk. Incorrect Answer. Reference: 46 CFR 148.62 The shipping paper and emer- gency response information required by §§148.60 and 148.61 of this part must be kept on board the vessel along with the dangerous cargo manifest required by §148.70 of this part. 3. A. 11.6 knots Incorrect Answer B. 12.3 knots Incorrect Answer C. 15.2 knots Incorrect Answer D. 16.4 knots Correct Answer. Reference: Formulae for the Mariner, Plant, Second Edition, page 41: New Consumption = New Speed 3 Old Consumption Old Speed 3 New Speed 3 = Old speed 3 × New Consumption Old Consumption New Speed 3 = 18.9 kts 3 × 251 Bbls 386 Bbls New Speed = 16.37 kts 4. A. It lengthens the wave period Correct Answer. Reference: Ship's Dynamics for Mariners, Clark, First Edition, page 236: The act of reducing vessel speed lengthens the encountered wave period and allows the vessel to ride over oncoming waves. B. It shortens the wave period Incorrect Answer. Increasing vessel speed would shorten the wave period. C. It reduces the force of impact of the vessel Incorrect Answer. Reducing the speed, would decrease the force of impact. D. Vessel speed does not affect slamming Incorrect Answer. Whether or not a vessel slams is dependent on its speed and draft relative to wave speed and height. Winter �2013_45.indd 82 2/10/14 9:32 AM