Deck Side Safety Flashcards

Any individual maintaining a listening watch on a bridgeton-bridge radiotelephone must be able to _____.

Answer: Speak English

Any individual maintaining a listening watch on a bridge-to-bridge radiotelephone must be able to speak English. This is a requirement under international maritime regulations (SOLAS) to ensure clear and effective communication between vessels, especially in critical situations. English is the internationally recognized language for maritime communication.

After removing someone from an electrical source who has been rendered unconscious by electric shock, you should _______.

Answer: Determine if he is breathing

After safely removing someone from an electrical source who has been rendered unconscious by electric shock, the immediate priority is to determine if they are breathing. Electric shock can cause respiratory arrest or cardiac arrest, so checking for breathing and pulse is the first critical step in providing emergency medical care. If not breathing, CPR should be initiated.

When a tank measuring 60 feet in length and 30 feet in width is equipped with a centerline bulkhead and partially filled with salt water, what is the decrease in metacentric height caused by free surface? (The displacement of the vessel is 10,000 tons.)

Answer: 0.1 foot

The decrease in metacentric height (GM) caused by free surface effect is calculated using a specific formula that considers the tank's dimensions and the vessel's displacement. For a tank with a centerline bulkhead, the effective width for the calculation is halved, significantly reducing the free surface moment. This calculation yields a decrease of approximately 0.1 foot, indicating a reduction in the vessel's initial stability.

____ determines how the free surface affects initial stability.

Answer: the dimensions of the liquid surface and the vessel's displacement

The free surface effect, which reduces a vessel's initial stability, is directly proportional to the moment of inertia of the free liquid surface and inversely proportional to the vessel's displacement. Therefore, the dimensions (length and width) of the liquid surface in a tank determine its moment of inertia, and the vessel's displacement provides the counteracting righting moment. A larger free surface area or smaller displacement leads to a greater reduction in stability.

Garbage discharged by vessels located 3 to 12 nautical miles from the nearest shore must be ground is subject to Annex V to MARPOL 73/78 and must not exceed _____.

Answer: 1"

MARPOL Annex V specifies regulations for the discharge of garbage from ships to prevent marine pollution. For garbage discharged between 3 and 12 nautical miles from the nearest shore, it must be ground or comminuted so that it can pass through a screen with openings no larger than 25 mm (approximately 1 inch). This requirement ensures that the discharged material is small enough to disperse quickly and minimize environmental impact.

Using an all-purpose nozzle, you would ____ to get low-velocity fog.

Answer: attach an applicator to the nozzle in place of the bronze nozzle tip

An all-purpose nozzle typically provides a solid stream or high-velocity fog. To achieve a low-velocity fog, which is often used for closer-range fire attack or to protect personnel, a specialized applicator must be attached to the nozzle in place of the bronze tip. This applicator changes the spray pattern and velocity, creating the desired low-velocity fog by breaking up the water stream more finely and at a lower pressure.

Small passenger ships must be built with or lined with ____ for paint and oil lockers.

Answer: steel or equivalent material

To enhance fire safety on small passenger ships, spaces containing highly flammable materials like paint and oil lockers must be constructed with fire-retardant materials. Steel or an equivalent fire-resistant material is mandated for bulkheads and linings in these areas. This prevents the rapid spread of fire and contains potential hazards, protecting passengers and crew.

When a vessel is in distress, it should transmit two alarm signals via radio telephone, promptly followed by the ______.

Answer: spoken words, "Mayday, Mayday, Mayday"

According to international maritime radio communication procedures, after transmitting two alarm signals, a vessel in distress must immediately follow with the spoken words "Mayday, Mayday, Mayday." This clearly identifies the transmission as a distress call and alerts all listening stations to an immediate and grave danger. The "Mayday" call is the universally recognized voice distress signal, initiating emergency response protocols.

What gear is required for oily mixtures on oceangoing boats ranging in size from 100 GT to 00 GT?

Answer: A fixed system to discharge oily mixtures to a reception facility

MARPOL Annex I, which deals with pollution by oil, mandates specific equipment for vessels to manage oily mixtures. For oceangoing vessels between 100 and 400 gross tons, a fixed system is required to discharge oily mixtures to shore reception facilities. This ensures that oil-contaminated water is not discharged overboard, preventing marine pollution and complying with international environmental regulations.

Which of the following statements about Fireman's attire is TRUE under the laws for cargo vessels?

Answer: Each fireman's outfit shall contain a flame safety lamp of an approved type

Regulations for cargo vessels specify the contents of a fireman's outfit to ensure the safety and effectiveness of personnel fighting fires in enclosed spaces. A flame safety lamp of an approved type is a crucial component, as it can detect oxygen deficiencies or the presence of flammable gases. This provides vital safety information to firefighters entering hazardous environments.

The following are the treatment(s) for heat exhaustion: _____.

Answer: moving to shaded area and laying down

Heat exhaustion is a heat-related illness caused by the body overheating, often due to dehydration and prolonged exposure to high temperatures. The primary treatments involve cooling the body and rehydration. Moving the affected person to a cool, shaded area and having them lie down helps to lower their body temperature and promotes blood flow to the brain, alleviating symptoms.