DWO Maritime Law & Regulations 3 — Questions and Answers
Question 1: A vessel is required to report to the US Coast Guard National Response Center when an oil spill occurs that exceeds which threshold?
- Any detectable amount (Correct answer)
- One gallon
- One barrel (42 gallons)
- 100 gallons
Correct answer: Any detectable amount
Under the Clean Water Act, any discharge of oil that causes a sheen on water must be reported to the NRC immediately, regardless of quantity.
Question 2: Under STCW, what is the maximum work period before a mandatory rest period is required for watchkeeping officers?
- 8 hours
- 10 hours
- 12 hours (Correct answer)
- 14 hours
Correct answer: 12 hours
STCW requires a minimum of 10 hours rest in any 24-hour period, which means a maximum continuous work period of up to 14 hours, but no more than 12 in any single stretch without a break.
Question 3: Which document must a vessel carry to prove compliance with the International Safety Management (ISM) Code?
- Certificate of Registry
- Safety Management Certificate (SMC) (Correct answer)
- Ship Sanitation Certificate
- Load Line Certificate
Correct answer: Safety Management Certificate (SMC)
A Safety Management Certificate (SMC) issued after audit confirms that a vessel's safety management system complies with the ISM Code.
Question 4: Under US law, a vessel operating in US waters with an expired Certificate of Inspection is subject to:
- A verbal warning only
- Detention and civil penalties (Correct answer)
- Mandatory drydocking
- Loss of the master's license only
Correct answer: Detention and civil penalties
Operating with an expired Certificate of Inspection exposes the vessel to USCG detention and the company to significant civil penalties under 46 USC.
Question 5: What is the purpose of COLREGS Rule 17 regarding the 'stand-on' vessel?
- It requires the stand-on vessel to always slow down
- It allows the stand-on vessel to take action to avoid collision when it becomes apparent the give-way vessel is not acting (Correct answer)
- It prohibits the stand-on vessel from altering course under any circumstances
- It requires the stand-on vessel to signal with five short blasts immediately
Correct answer: It allows the stand-on vessel to take action to avoid collision when it becomes apparent the give-way vessel is not acting
Rule 17 allows the stand-on vessel to take action to avoid collision by its own maneuver alone when it becomes clear the give-way vessel is not taking appropriate action.
Question 6: The Load Line Convention governs which aspect of vessel safety?
- Fire suppression equipment requirements
- Minimum freeboard to prevent overloading and loss of stability (Correct answer)
- Minimum crew complement for safe operation
- Cargo securing standards
Correct answer: Minimum freeboard to prevent overloading and loss of stability
The Load Line Convention (LL 66) establishes minimum freeboard requirements to ensure vessels are not overloaded and maintain adequate reserve buoyancy.
Question 7: Under COLREGS, what sound signal must a vessel at anchor in restricted visibility make at intervals of not more than one minute?
- One prolonged blast
- Three short blasts
- Rapid ringing of a bell for about five seconds (Correct answer)
- Two prolonged blasts followed by one short blast
Correct answer: Rapid ringing of a bell for about five seconds
A vessel at anchor in restricted visibility shall ring the bell rapidly for about five seconds at intervals of not more than one minute per Rule 35(g).
DWO Maritime Law & Regulations 3
A vessel is required to report to the US Coast Guard National Response Center when an oil spill occurs that exceeds which threshold?