Safety Flashcards
OPNAVINST 3120.32B
Standard organization and regulations of the navy (Standard safety program)
OPNAVINST 5100.19E
NAVOSH Afloat safety
OPNAVINST 5100.23G
NAVOSH (aviation, weapons, off duty safety)
Color of Warning signs
Red
Color of caution signs
Yellow
When are danger shock hazard signs used
Where 30 to 500 volts are used
Warning plates are installed in small craft to warn personnel of what potential hazard
Explosive vapors
Caution tags/danger tags
Yellow/red
When are caution tags used
When temporary special instructions or unusual caution must be exercised to operate equipment
When are danger tags used
When operation could injure personnel or damage equipment
What is true if an instrument is labeled out-of-calibration
It should be used with extreme caution
When working on energized equipment which of the following safety precautions should you observe
Make sure that a person qualified to administer mouth to mouth ventilation and Cardiac massage is in the immediate area
What type of electrical distribution systems are found on Navy ships
Ungrounded
Isolated receptacle circuits are designed to limit ground leakage ckts to how many Milliamperes
10
When checking continuity between the equipment and the ships hull on a piece of equipment that uses a ground strap, what reference should you use to determine the allowable resistance to ground
PMS card
When are you allowed to block open an interlock switch on a piece of equipment
When authorized by the CO for operational reasons
Why must you short circuit the secondary of a current transformer before you disconnect the meter
To prevent an extremely high voltage build up
How do you discharge capacitors in de-energize equipment
Safety Shorting probe
What class rubber gloves would you use for a 5000 V equipment
Class 1 (7500 v rating)
When installing rubber floor mattings, you should ensure there are no seams within what minimum distance of an electrical hazard
3 ft
Why should A dummy outlet be installed near a workbench
To test the grounding conductors on portable power tools
What is an acceptable resistance reading for the ground connection between the ships hull and metal frame of a portable electric drill
Less than 1 ohm
What is the maximum length of an extension cord used with portable tools
25 ft, 100 ft on weather decks
The current coil of a wattmeter or an ammeter must be connected in what way
In series with the load
In signal generators and oscilloscopes how are the effects of Moisture minimized
By built in heaters
Before being used on electronic equipment metallic tools should be insulated by wrapping with what material
Two layers of rubber or vinyl plastic tape, half lapped
How do you clean a soldering iron of excessive solder
Wipe the soldering iron across a piece of canvas
What is the maximum Of time that a lead acid storage battery can last if it is cared for properly
4 or more years
When should the charging rate of a lead acid storage battery being charged should be lowered
- If the battery begins to gas
2. if the temperature of the battery reaches 125°F
What is the proper way to mix electrolyte
Pour the acid slowly into the water
Where are The alkaline storage batteries used
Bus failure alarms
Dry cell batteries should be removed when the equipment they are used with is going to remain idle for what minimum length of time
2 weeks
Why should you always be extremely cautious with handling a CRT
Because it’s glass envelope encloses a high vacuum and it may implode under atmospheric pressure
Before disposing of a CRT you should break off the tip of the glass vacuum seal with what device
Pliers
What is the proper method for disposing of aerosol dispensers
Put it in an approved waste receptacle
Which of the following solvents should you never use for cleaning electrical equipment
Volatile solvents or flammable solvents (can clean with waterbase solvents)
What is the preferred grade of insulating Varnish used in the Navy
CB
Which of the following materials should you NEVER used to clean contacts
Emery cloth/paper and steel wood
Which of the following electrical equipment is authorized for use aboard the ship
Electric shavers
What is the first thing that you do if a fire breaks out in electric equipment
Secure the power
What type of fire extinguishing agent should you use on an electrical fire
CO2 (carbon dioxide)
What is a quick way Safe way to free a victim of electrical shock that is in contact with a portable drill
Unplug the drill if you cannot secure the power from the workbench switch first
How would you free a victim that suffers from electrical shock from stationary equipment that cannot be de-energized quickly
With your own belt without the belt buckle
What is the purpose of artificial ventilation
To provide a method of air exchange
Artificial ventilation should be. Administered for who ?
Someone who has stopped breathing naturally (just because someone is unconscious does not mean they have stopped breathing)
CPR must be started within what maximum length of time after a victim has suffered cardiac rest
4 minutes
What is a wound that deals with the crushing of the tissues
Laceration
When the direct pressure method is used on a victim and fails to stop the bleeding what action should you take
Use both the direct pressure method and the pressure point method
What burn for the most part is not caused by heat
Chemical
What is the most important factor in determining the seriousness of a burn
The extent of the body surface burned
Hazardous noise areas are areas that produce continuous and intermittent sound levels greater than what minimum and maximum level
84 to 140 dB
A worker should wear double hearing protection when working around noise sources above what minimum sound level
104 dB
Excessive heat, humidity, and thermal radiation well under and continue work load can’t result in which conditions
Heat stress, heat stroke, heat exhaustion
Chemicals is solvents come in which of the following type of forms: gas ,vapor, mist dust or fumes
They come in all of them. Gas,vapor,mist dust and fumes
When cleaning electrical equipment with a cleaning solvent, equipment should be warm or hot to increase the cleaning power of the solvent. true or false
False. hot equipment increases the toxicity hazard
When should you repaint electrical equipment or enclosure
When necessary to complete corrosion control
When operating a portable CO2 extinguisher, you should grab the horn handle by the insulated/ thermal grip for what?
The grip is insulated against possible frost bite of the hand
Soda acid extinguisher is used for what type of fire
Alpha
CO2 is good for what kind of fires
All fires especially Charlie
PKP is good for what type of fires
Bravo, never Charlie because it corrodes the equipment
AFFF is good for what kind of virus
Bravo and Alpha, prefer not Charlie
Halon 1301 is good for what type of fire
All classes except Delta
When you consider the manner in which the skin or tissue is broken what are the general kinds of wounds
4 of them. Abrasions, incisions, lacerations and punctures
Heat stress can cause poor mental and physical performance. true or false
True
Which of the following people are responsible for understanding and Observing safety standards and regulations on board the ship
All hands
