DC Flashcards
(15 cards)
What is the capacity and power source of a Box Fan?
3200 cubic feet/min, ship’s electricity
What is the capacity and power source of a RAM fan 2000
2000 cubic feet/min, firemain
What is the PEL?
Permissible exposure limit. The maximum amount of time an individual can be exposed to a toxic atmosphere.
What is the LEL?
Lower explosive limit. The lowest concentration (in air) that is needed for the gas to ignite and explode.
What is the UEL?
Upper explosive limit. The highest concentration of a gas or vapor in the air which will burn or explode if ignited.
IDLH
Immediately Dangerous to Life and Health. Oxygen content is < 19.5% or greater than 22%. Flammable vapors > LEL. Toxin levels will cause long term damage passed 30 min.
Clearance Levels for Gas Freeing
Safe for personnel, not safe for personnel, safe for hot work, not safe for hot work.
Fire Watch Requirements (ACPP)
All sides watched, Communication devices used, Portable fire extinguisher used, PPE worn
What are the four primary forms of radiation?
Alpha, Beta, Gamma, Neutron.
What are the three ways to minimize exposure?
Time, Distance, Shielding.
What are the five levels of MOPP? (ZSPPI)
Zero, Suspected, Possible, Probable, Imminent
What are a few benefits of casualty power?
Watertight integrity, simplicity of installation, flexible application.
What are some examples of casualty power?
Steering gear, CIWS, AFFF.
What are some benefits of bulkhead terminals/risers?
Preserves watertight integrity through installed watertight bulkheads.
What is the process for rigging casualty power?
Load to Source.
