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Boating test topic: registration and numbering
10 test-style questions with the answer and the exact rule.
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- If a vessel's hull configuration makes a number painted directly on it difficult to see, where must the number be placed?On a backing plate attached to the forward half of the vessel so it is visible from each side. The rule requires a backing plate on the forward half to ensure visibility from both sides when the hull itself is not suitable for direct painting.33 CFR § 173.27(c): “On vessels so configured that a number on the hull or superstructure would not be easily visible, the number must be painted on or attached to a backing plate that is attached to the forward half of the vessel so that the number is visible from each side of the vessel.”
- When displaying the required number on the forward half of a recreational vessel, what is the minimum height requirement for the characters?3 inches. The regulation mandates that the vessel number characters must be at least 3 inches tall to ensure visibility.33 CFR § 173.27(a): “Be in plain vertical block characters of not less than 3 inches in height;”
- How must the spacing be formatted between the letter and number groupings of a vessel number?With spaces or hyphens equal to the width of a letter other than 'I' or a number other than '1'. The rule specifies that separators must match the width of standard characters, excluding the narrow 'I' and '1' to ensure legibility.33 CFR § 173.27(a): “Have spaces or hyphens that are equal to the width of a letter other than “I” or a number other than “1” between the letter and number groupings”
- What specific document must be on board a leased or rented vessel if the certificate of number is retained on shore?A copy of the lease or rental agreement containing the vessel number and the period of time leased. When the certificate is kept on shore, the lease agreement itself serves as the required on-board documentation, provided it includes the vessel number and lease duration.33 CFR § 173.21(a): “For the vessel described in paragraph (b) of this section, a copy of the lease or rental agreement, signed by the owner or his or her authorized representative and by the person leasing or renting the vessel, that contains at least: (i) The vessel number that appears on the certificate of number; and (ii) The period of time for which the vessel is leased or rented.”
- Under what specific condition may a vessel owner retain the certificate of number on shore instead of keeping it on board?When the vessel is less than 26 feet long and leased for noncommercial use for less than 7 days. Owners are permitted to keep the certificate on shore only for short-term, noncommercial leases of vessels under 26 feet.33 CFR § 173.21(b): “The certificate of number for a vessel less than 26 feet in length and leased or rented to another for the latter's noncommercial operation of less than 7 days may be retained on shore by the vessel's owner or representative”
- A sailing vessel underway is using a combined lantern at the top of the mast as permitted for vessels under 20 meters. Can the operator also display two all-round lights in a vertical line (upper red, lower green) at the same location?No, these lights shall not be exhibited in conjunction with the combined lantern. The regulation prohibits combining the two all-round lights with the combined lantern allowed for smaller sailing vessels.33 CFR § 83.25(c): “but these lights shall not be exhibited in conjunction with the combined lantern permitted by paragraph (b) of this Rule.”
- In what format must the required certificate of number be kept on board the vessel?In hard copy or digital form. The regulation allows the certificate of number to be presented in either hard copy or digital form.33 CFR § 173.21(a): “no person may operate a vessel to which this part applies unless they have on board in hard copy or digital form: (1) A valid certificate of number or temporary certificate for that vessel issued by the issuing authority in the State in which the vessel is principally operated;”
- When a vessel is used by a manufacturer or dealer for testing or demonstrating purposes, how may the required number be displayed?It may be painted on or attached to removable plates that are temporarily but firmly attached. The regulation permits the use of removable plates for manufacturer or dealer testing and demonstration scenarios.33 CFR § 173.27(b): “When a vessel is used by a manufacturer or by a dealer for testing or demonstrating, the number may be painted on or attached to removable plates that are temporarily but firmly attached to each side of the forward half of the vessel.”
- According to the regulations for recreational vessels more than 65 feet in length, what is the maximum number of 20-B fire extinguishers that must be carried in the machinery space, regardless of the total brake horsepower?Not more than six such extinguishers are required to be carried. The regulation caps the requirement at six extinguishers, even if the engine horsepower calculation would suggest a higher number.33 CFR § 175.320(b): “However, not more than six such extinguishers are required to be carried.”
- You are operating a recreational vessel that is 18 feet long. According to the regulations, what is the minimum requirement for Personal Flotation Devices (PFDs) on board?One wearable PFD per person and one throwable PFD. Since the vessel is 18 feet long (which is 16 feet or more), the operator must have one wearable PFD for each person plus one additional throwable PFD.33 CFR § 175.15(b): “No person may use a recreational vessel 16 feet or more in length unless one throwable PFD is onboard in addition to the total number of wearable PFDs required in paragraph (a) of this section.”