orkers Comp - low fence
minimum dB loss before a worker is eligible for compensation, because small hearing losses aren't debilitating
Workers Comp - high fence
100% hearing loss
Time-Loss Analysis
Technique
...
orkers Comp - low fence
minimum dB loss before a worker is eligible for compensation, because small hearing losses aren't debilitating
Workers Comp - high fence
100% hearing loss
Time-Loss Analysis
Technique that is based on the premise of a natural course line for accidents --that is, with no outside intervention, each accident sequence would eventually end.
Attractive Nuisance Doctrine
A person is under the duty to prevent injury to children that may be attracted to something which could cause harm
Business interruption recovery/business continuity
Allows facility to continue serving its customers even though the facility was nearly destroyed by a fire
Contributory negligence
When an injured person's care for his own safety was less than that reasonable for a prudent person under existing conditions
Fright without physical contact
Neurological or emotional disturbances that occurred without physical injury
Foreseeability applied to rescue
allows damages to rescuer if someone could have foreseen that their actions were going to cause an incident where aid would be needed
Obvious peril
A manufacturer is not required to warn prospective users of products whose use involves an obvious peril, especially those that are well known to the general public
Strict liability
Manufacturer of a product is liable for injuries due to defects, no proof needed of negligence or fault
Dangerous Instrumentality
A person who keeps, maintains, transports, or stores a dangerous creature, device or substance is liable for injury or damage, regardless of fault, even when he exercises due care
Great care
High degree of care that a very prudent and cautious person would undertake for the safety of others -- (bus, trains, airplanes).
Res ipsa loguitur
occurrence of an accident is sufficient proof that negligence existed
Sneak circuit analysis
A technique which is used to determine an unintended energy route, which can allow an undesired function to occur, prevent desired functions from occurring, or adversely affect the timing of functions
HAZOP Analysis
Multi-disciplinary team to brainstorm and identify the consequences of deviations from design intent. Uses guide words
Failure modes effects analysis - FMEA
Classic inductive reasoning process. Failure or malfunction of each component is considered and the effects of the failure traced throughout the system
Fault tree analysis
Classic deductive reasoning process. Selects the undesired outcome and all possible modes of happenings
Cut Set
Shortest path to failure in a fault tree
Velocity of discharge from a fire extinguisher
Q = 12.1 * square root of P, Q = velocity of discharge, P = pressure in PSI
ASME and API Standard 620
Code(s) utilized in the design and construction of pressure vessels
Flow rate (in gpm) of water from fire hydrant
Q= k * square root of P; "k factor" will be specific to the type of hydrandt
Pre-action sprinkler system
Water supply is activated by a a fire alarm system. Protects against damage if to building if sprinkler pipes/heads leak
Wheatstone bridge (CGI meter)
An electronic circuit that is capable of detecting very small changes in current flow.
Flow rate from a hydrandt knowing theoretical flow and friction coefficient
Q, = (theoretical discharge flow rate)(discharge coefficient of friction)
Total flooding system (deluge)
Automatically discharge a predetermined concentration of agent into an enclosed space
American Society of Mechanical Engineers' (ASME) Boiler and Pressure Vessel code
Boilers and unfired pressure vessels are designed, constructed, tested and installed in accordance with ASME
"Explosion proof" electrical apparatus
Capable of containing an internal explosion
Ionizing smoke detectors
Sense fire at the earliest practical detection stage. Accurately detect most fires more rapidly other detectors
Boiler fusible plug
Designed to relieve pressure and to indicate certain conditions that contribute to low water (which causes pressure build-up).
Boiler safety valve
Automatically relieves excess pressure or vacuum
Wheatstone Bridge
Resistances are balanced then one part of the circuit is exposed to some external atmosphere containing combustible gas that unbalances the circuit
Class "B" fire doors
Protect openings in stairwells
tan
opposite / adjacent
cos
adjacent / hypotenuese
sin
opposite / hypoteneuse
stats: standard deviation
indicates how closely the measurements vary about the mean
stats: Bell curve percentages
z score
ratio of number to 1 standard deviation; z = 1 means 1 standard deviation
sewed curve
skew name is direction of the long tail
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