OUPV Boating Safety 2 — Questions and Answers
Question 1: What is the primary purpose of a Type IV personal flotation device (PFD)?
- To be worn while operating a vessel
- To be thrown to a person in the water (Correct answer)
- To be used as a seat cushion only
- To serve as a fire blanket
Correct answer: To be thrown to a person in the water
Type IV PFDs are throwable devices designed to be tossed to someone who has fallen overboard, not worn.
Type IV PFDs are throwable devices such as ring buoys and buoyant cushions. Unlike Types I, II, III, and V which are wearable, Type IV devices are designed to be thrown to a person who has fallen overboard. USCG regulations require vessels 16 feet and longer to carry at least one Type IV device in addition to wearable PFDs for each person aboard.
Question 2: When fueling a gasoline-powered vessel, which action should be taken FIRST?
- Start the blower system
- Close all hatches and openings
- Turn off all electrical switches and engines (Correct answer)
- Open all windows for ventilation
Correct answer: Turn off all electrical switches and engines
Before fueling, all engines, electrical switches, and sources of ignition must be turned off to prevent gasoline vapor ignition.
The correct fueling procedure requires first turning off all engines, electrical equipment, and any potential ignition sources. Gasoline vapors are heavier than air and can accumulate in bilges and enclosed spaces. After fueling, hatches should be opened and the blower run for at least four minutes before starting the engine to ventilate any accumulated vapors.
Question 3: According to USCG requirements, which vessels must carry a whistle or horn?
- Only vessels over 65 feet
- Vessels 39.4 feet (12 meters) and longer (Correct answer)
- All vessels regardless of size
- Only commercial passenger vessels
Correct answer: Vessels 39.4 feet (12 meters) and longer
USCG regulations require vessels 12 meters (39.4 feet) and longer to carry a whistle or horn capable of producing a blast audible for at least half a mile.
Under 33 CFR and the Inland Navigation Rules, vessels 12 meters (39.4 feet) or more in length must carry a whistle (horn) and a bell. Vessels 20 meters and longer must also carry a bell. These sound-producing devices are essential for signaling intentions and warnings in restricted visibility and during maneuvering situations.
Question 4: What is the recommended action if you discover a leak in the fuel system while underway?
- Continue to the nearest port at full speed
- Stop all engines, ventilate, and repair before proceeding (Correct answer)
- Increase ventilation by opening the throttle
- Anchor immediately regardless of location
Correct answer: Stop all engines, ventilate, and repair before proceeding
A fuel leak requires immediately stopping engines to eliminate ignition sources, ventilating the area, and making repairs before continuing.
A fuel leak presents an immediate fire and explosion hazard. The correct response is to shut down all engines and electrical equipment to eliminate ignition sources, then ventilate all spaces thoroughly. The leak should be located and repaired if possible. If the leak cannot be repaired, the vessel should be towed to port. Never continue operating with a known fuel leak as accumulated vapors can cause a catastrophic explosion.
Question 5: How often must fire extinguishers on an uninspected passenger vessel be inspected?
- Every two years
- Annually (Correct answer)
- Monthly
- Every six months
Correct answer: Annually
USCG regulations require fire extinguishers on uninspected passenger vessels to be inspected annually and maintained in good working condition.
Under 46 CFR, fire extinguishers aboard uninspected passenger vessels must be inspected at least annually. This inspection ensures they are fully charged, accessible, and in good working condition. Additionally, extinguishers should be checked monthly by the operator for obvious damage or discharge. Portable extinguishers over 12 years old must be hydrostatically tested or replaced.
Question 6: What does a carbon monoxide (CO) detector alarm indicate on a vessel?
- Low battery in the detector
- Dangerous accumulation of colorless, odorless gas (Correct answer)
- Engine overheating
- High humidity in the cabin
Correct answer: Dangerous accumulation of colorless, odorless gas
Carbon monoxide is a colorless and odorless deadly gas produced by engines and generators; a CO alarm means dangerous levels have been detected.
Carbon monoxide is produced by incomplete combustion in engines, generators, and heating systems. It is colorless and odorless, making it impossible to detect without instruments. A CO alarm indicates potentially lethal concentrations have accumulated. The immediate response is to ventilate all spaces, move passengers to fresh air, shut down potential sources, and seek medical attention for anyone showing symptoms such as headache, dizziness, or nausea.
OUPV Boating Safety 2
What is the primary purpose of a Type IV personal flotation device (PFD)?