Some safety precautions that could save lives include—
a. Observe all safety precautions
b. Report unsafe conditions
c. Warn your shipmates of hazards
d. Wear protective clothing and equipment
e. Stay alert

Being aboard ship is dangerous. Some dangerous shipboard environments you may work in or work around involve—
a. Powerful machinery
b. High-speed equipment
c. High-temperature, high-pressure steam
d. Volatile fuels and propellants
e. Heavy lifts
f. High explosives
g. Electrical voltages
h. Wind and waves

The publication that contains information on using, storing, and disposing of hazardous materials is the Material Safety Data Sheets (MSDS).

According to OPNAVINST 5100.19, you should follow MSDS guidelines when handling hazardous materials.
The boat safety precautions that every Sailor should know include—
a. Obey all orders from the coxswain.
b. Embark in a quiet, orderly manner and move as far forward as possible. Once embarked, stay in place.
c. Keep all parts of your body in the boat; do not sit on gunwales.
d. Don’t engage in horseplay.
e. Never distract the attention of crew members from their duties.
f. Don’t sit on life jackets; this will mat the filler and reduce buoyancy.
g. When told to do so, don your life jacket immediately.
h. Don’t smoke in a boat.
i. If told to embark or disembark, do so without argument. During heavy weather, boat loads will be reduced.

If a boat swamps, don’t panic! Panic is easily spread from person to person causing people to lose their lives.

You should learn the location of cleats, bitts, and pad eyes on a ship’s deck because they’re tripping hazards; if you know where hazards are located, you stand a better chance of avoiding the hazard.

Two hazards found on flight decks of aircraft carriers are—
a. Propellers
b. Jet engines

Handling cargo improperly can result in injury and death. In the following cases you should take the indicated precautions.
a. When working with line, never stand in the bight of a line. Keep clear of lines under strain because a line under strain can break with a whiplike snap that can cause severe bruising, broken bones, amputations, or death.
b. When lifting heavy objects, crouch close to the load with feet spread. Grip the object and lift with your arm and leg muscles (not your back). If the load is too heavy for one person to lift, ask for help.
c. When steadying a load, use the nonworking side of a ship for fore-and-aft travel. Don’t stand between the load and a fixed object; don’t stand under a suspended load; and never ride loads.

The OOD grants permission for any work done aloft.

Before permission is given for personnel to work aloft, the following precautions are taken:
a. Power is secured on radio and radar antennas and controls associated with antennas are tagged.
b. The engineer officer is notified to prevent operations such as lifting boiler safety valves or blowing tubes.

Lifelines are safety barriers to prevent personnel from falling or being washed over the side.

When working over the side, you should wear the following equipment:
a. Standard Navy safety harness with safety line attached and tended by someone on deck
b. An inherently buoyant life jacket with a hole in the back, allowing you to wear a safety harness

Most accidents involving steam happen in engine rooms and firerooms.

You should never enter a closed space until it’s certified by the gas free engineer because closed compartments contain unexpected dangers, including pressures, toxic gases, carbon monoxide, carbon dioxide, and possibly no oxygen.

The symptoms caused by bad air include—
a. Labored breathing
b. Excessive fatigue
c. Headache d. Dizziness

Open flame and naked lights are defined as follows:
a. The term open flame includes all forms of fuel or gas lanterns, lighted candles, matches, cigarette lighters, and so on.
b. The term naked lights includes any unprotected electrical lighting device.

You should take the following actions when storing solvents:
a. Label all containers used to store solvents
b. Store solvents in appropriate lockers

When handling a weapon, you need to think about what you’re doing because accidents don’t “just happen;” they’re caused. In fact, they’re often caused by personnel who don’t follow safety precautions or who are careless.

Projectiles that have a 3-inch or greater diameter are color-coded to show the projectile type and the kind of bursting charge that they contain.

Treating common 115-volt equipment lightly is the cause of many fatal shocks received from drills and fans.

Three types of hazards associated with compressed gases are—
a. Cylinders not secured
b. Cylinders under high pressure
c. Cylinders containing poisonous, flam- mable, or explosive material

True, oxygen and chlorine are stowed in compartments separate from flammable gases.

You should use a filter mask respirator when working with fiberglass because fiberglass dust is abrasive and an irritant to skin and eyes.

Before beginning work to repair a piece of equipment, you should make sure that the equipment is de-energized and / or depressurized and tagged out of service.

Only properly trained personnel should operate gas welding or cutting equipment.

When working around rotating machinery, you should remove jewelry and watches and you shouldn’t wear loose fitting clothing; wear protecting clothing and equipment, such as hearing protection, eye, hand, and foot protection, dust and paint respirators, and so on.

The safety precautions to follow when working with systems having pressurized liquids include—
a. Never connect or disconnect a hose from the system until the pressure has been removed.
b. Never point a charged (pressurized) fire hose at anyone.
c. Never use ruptured or worn hoses.
d. Don’t use spray paints, butane fluids, lacquers, and other aerosol products near a flame; don’t throw them into a fire; and don’t puncture the container.

If you’ve been exposed to acids or alkalis, you should immediately seek medical attention.

You shouldn’t smoke near sewage-handling equipment for the following reasons:
a. Fuel leaks or spills can occur in the incinerator area where temperatures may exceed the flash point of the fuels used.
b. Methane and hydrogen sulfide may be emitted by any tank or tank leaks. These gases are also flammable and under some conditions are explosive.

The three types of hearing protection are the
a. Headband
b. Earplugs,
c. Circumaural muff.

List the three major precautions you should follow when lifting heavy loads.
a. Don’t lift an object if it is too heavy or too clumsy for good balance.
b. Keep the load close to the center of your body.
c. Pull the load toward you; then lift it gradually.

Before entering a shipyard for dry dock work, every ship has a shipyard safety doctrine and conducts safety training before entering a shipyard.

LOX is dangerous to handle because—
a. It freezes immediately on contact.
b. As a gas, it exerts extremely high pressure.

The symptoms of heat exhaustion and heat stroke include—
a. Increased body temperature
b. Severe headache
c. Nausea
d. Reduced mental and physical performance

The major health threat of cold weather is hypothermia.

Purposes of the tag-out bill include—
a. To provide personnel a way to prevent the improper operation of a component, piece of equipment, system, or a part of a system that’s isolated or in an abnormal condition.
b. To give personnel a way to operate an instrument that’s unreliable or not in a normal operating condition.
c. To give personal a way to accomplish certain planned maintenance system (PMS) procedures.

The tag-out system is made or broken by the person attaching the tag.

A DANGER tag identifies equipment whose operation is prohibited because its use could jeopardize the safety of personnel or endanger equipment.

Tag-out logs contain—
a. A copy of the main instruction and any other amplifying directives for administering the system.
b. A DANGER/CAUTION tag-out index and record of audits (index/audit record).
c. Cleared DANGER/CAUTION tag-out record sheets that have been cleared and completed.