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A 40 ton gantry crane has been out of service for more than 6 months for structural repair. It is required to be proof tested at ______?? Before being used? - ans50 tons A body that has a definite volume but no definite shape is? - ansA liquid A cage on a fixed ladder on a commercial ladder cannot extend any closer than how many feet from the ground? - ansOSHA 1910.27 "cages shall extend down the ladder to a point of not less than 7 feet or more than 8 feet above the base of the ladder". "A calorie is the amount of heat required to raise the temperature of one gram of water
BTU is the measure of energy and is the amount of heat required to raise temperature of one pound of water_______" - ans"1 degree Celsius 1 degree Farenheit " A commercial motor vehicle transporting hazardous materials is required to display placards in which of the following locations? - ansFront, rear and both sides of vehicle A fire resistive wall separating oxygen and fuel gases should be how high? - ansAbout five feet A room designed for recharging of lead acid batteries does not require?? - ansPressure relief panels A solution contains 10-2 hydrogen ions per liter. What would this solution be considered? - ansA strong acid Acclimatization to heat is generally achieved by requiring the employee to? - ansWork for two hours per day for two weeks. New workers and those returning from a prolonged absence should begin with 20% of the workload on the first day, increasing incrementally by no more than 20% each subsequent day. During a rapid change leading to excessively hot weather or conditions such as a heat wave, even experienced workers should begin on the first day of work in excessive heat with 50% of the normal workload and time spent in the hot environment, 60% on the second day, 80% on day three, and 100% on the fourth day. Full acclimatization may take up to 14 days or longer depending on factors relating to the individual, such as increased risk of heat illness due to certain medications or medical conditions, or the environment. According to 1910.145, what is the minimum reading distance when posting a danger sign? - ansFive feet
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According to ANSI Z89.1-1997 specifications for helmets (hardhats) to protect employees from impact of falling objects and from high voltage electrical shock. Which of the following classes offer low voltage protection? - ansG According to OSHA 1910.217 "Mechanical Power Press" requires how much safe distance per second of stopping time from "point of operation devices" to ensure the safety of the operator? - ans63 inches or 5.25 feet According to OSHA HAZ Com; who has the responsibility to determine if a material is hazardous? - ansThe manufacturer or importer of the chemical According to the Commercial Motor Vehicle Safety Act of 1986, a CDL is required for what operation?? - ansSingle vehicle with a GVW of 26,000lbs. According to the fire protection handbook, although increasing storage heights increases fire intensity, storage heights up to ____ feet in piled storage and up to _____ feet in rack storage need not be adjusted. - ans"12 feet for piled 15 feet for rack storage " According to the theory that "deformations are directly proportional to stresses", which statement is true concerning the elastic limit and the yield point of structural steel? - ansThe elastic limit has a lower value than the yield point Administration - ansFunction of planning; organizing; coordination and measuring performance and providing the data to the organization Anthrax-bacterial - ansDirect contact with infected animals, hides, and wool. Risk is higher for veterinarians, farmers, butchers, leather and wool workers, carpet workers. Are excursions above the Threshold Limit Value (TLV) permitted? - ansOnly if below the TLV-C At what level do the effects of carbon dioxide inhalation result in the loss of consciousness? - ansNine percent Before maintaining electrically powered equipment, an employee opens the electrical circuit powering the equipment and places his personal lock on the circuit to ensure that the circuit remains open while he is performing maintenance on the equipment serviced by that electrical circuit-what type of control does this describe? - ansLocking out a circuit is an administrative control (a procedure) since it requires a person to perform the action each time. Best way of dealing with minor infractions of safety rules? - ansOral reprimand Brucellosis-bacterial - ansIngestion, inhalation, contact with infected animals, cuts and scratches. Those who work with cattle and hogs, meat packing workers. Cat-scratch disease (viral) - ansBreak in skin, usually from animal scratch. People who work or play with cats and dogs. CEO; plant manager and department head - ansSets tone for safety; leads by example Combustible gas indicator - ans"Operates with a catalytic sensor and Wheatstone bridge Requires oxygen to operate properly
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During operations requiring an employee to be within the control envelope of an industrial robot, what is not true concerning the pendant control? - ansThe pendant control operates in a parallel mode with the master control panel (either can control the robot) During safety inspection, you observe an electrical conduit very warm to the touch-what is best reason? - ansConduit probably contains overloaded wiring. Elements of strict liability? - ans"1. Plaintiff must prove the three elements evidence: Product was defective Defect existed at the time it left the defendants hands That the defect caused the injury or harm or was the proximate cause of the injury. " Emergency response guidelines (EPRGS) provide values of intended as estimates of ranges where one might reasonably anticipate observing adverse effects as a consequence of exposure to a specific substance. How many levels of EPRGS? - ansEPRG-3 is the maximum airborne concentration below which it is believed nearly all individuals could be exposed for up to one hour without experiencing or developing life threatening health effects. Employee rights concerning the abatement date of an OSHA violation? - ansAppeal the abatement date "ENGINEERING ECONOMY A=F( i ) (1+i)n- 1 " - ans"P=PRESENT VALUE OF MONEY F=FUTURE VALUE OF MONEY A=SERIES OF PAYMENTS (ANNUITY) I=INTERSST RATE N=NUMBER OF PERIODS " "ENGINEERING ECONOMY A=P i (1+i)n
(1+i)n-1" - ans"P=PRESENT VALUE OF MONEY F=FUTURE VALUE OF MONEY A=SERIES OF PAYMENTS (ANNUITY) I=INTERSST RATE N=NUMBER OF PERIODS " "ENGINEERING ECONOMY F=A( (1+i)n-1 ) i" - ans"P=PRESENT VALUE OF MONEY
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F=FUTURE VALUE OF MONEY
A=SERIES OF PAYMENTS (ANNUITY)
I=INTERSST RATE
N=NUMBER OF PERIODS
"ENGINEERING ECONOMY
F=P(1+i)n" - ans"P=PRESENT VALUE OF MONEY F=FUTURE VALUE OF MONEY A=SERIES OF PAYMENTS (ANNUITY) I=INTERSST RATE N=NUMBER OF PERIODS " "ENGINEERING ECONOMY P=A( (1+i)n-1 )
I(1+i)n" - ans"P=PRESENT VALUE OF MONEY F=FUTURE VALUE OF MONEY A=SERIES OF PAYMENTS (ANNUITY) I=INTERSST RATE N=NUMBER OF PERIODS " "ENGINEERING ECONOMY P=F(1+i)-n" - ans"P=PRESENT VALUE OF MONEY F=FUTURE VALUE OF MONEY A=SERIES OF PAYMENTS (ANNUITY) I=INTERSST RATE N=NUMBER OF PERIODS " Epidemiological studies describe symptoms of a disease and uncover the relationship with the etiological (causative) agent. What describes retrospective studies? - ansRetrospective studies look back in time on populations exposed to the agent under investigation. Exits - ans"· must be clearly marked exit doors must be at least 32 inches wide after 1994 and 28 inches wide before 1994 stairway downward should allow 45 persons/minute per 22 inches of width exit doors must open in the direction of travel pull stations located within 5 feet of exit and exit discharge " Fail active example?? - ansWhen the electrically actuated valve controlling hydraulic power to an aircraft control surface always goes to the open position should electrical power fail.
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Ground Fault Circuit Interrupter - ans"· Detects difference between 2 conductors Shuts off circuit if there is a difference-as low as 2 ma and as quickly as .02 seconds Used in bathrooms; kitchens and outdoor circuits " Grounding and bonding - ans"· Grounding: electrically connecting a piece of equipment to ground (earth) Bonding: electrically connecting two (or more) pieces of equipment together. This prevents a static charge buildup between the pieces. " Guidelines for cleaning up a minor spill of flammable or combustible material does not include what? - ans"You do not have to immediately notify OSHA of a minor spill. " Having an R number below 2000 implies what about flow characteristics in a ventilation system? - ansLaminar flow Hawthorne study concluded that plant employees would respond to: - ansBoth positive and negative forms of attention "Hazardous area classification Class I" - ansFlammable liquids; vapors and gases are likely to be present "Hazardous area classification Class II" - ansCombustible dusts are likely to be present "Hazardous area classification Class III" - ansEasily ignitable fibers are likely to be present Hazards of infrared radiation? - ansCan damage the unprotected eye or skin by releasing energy and producing a heating effect. Over-exposure of unprotected eyes to infrared radiation could give rise to cataracts. Hearing loss from industrial exposure is usually? - ansSensorineural Heating accomplished by circulating hot water through copper pipes contained in the concrete floor is what type of heating system? - ansConduction Heinrich's 1930's famous domino theory of accidents? - ansSocial, fault, unsafe act, accident, injury Heinrich's principle in the way safety professionals viewed the cause of certain mishaps? - ansShifted emphasis from conditions to actions. Heinrich's ratio of no injury accidents, to minor injuries, to major injuries? - ans300- 29 - 1 Hepatitis-viral - ansFecal-oral transmission. Health workers, particularly pediatrics, oral surgeons. Histoplasmosis-fungal - ansInhalation and ingestion, roof demolition workers and workers in barns and chicken houses. Hoisting chain with a minimum breaking strength of 25 tons has been proof tested to 33, pounds. What value would you assign the working load limit? - ans16,500 lbs (elaborate)
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Hookworm-parasitic - ansPenetration of skin (particularly bare feet) by larvae. Barefoot farmers and ditch diggers, sewer workers, tunnel workers, recreation (children and adults). How are employee doses of radiation measured in the workplace? - ans"Typically measured in rems. A dose of one Roentgen due to X-ray or gamma radiation is equivalent to one rem. Radiation exposures that exceed prescribed regulatory limits must be reported to OSHA within 24 hours of the incident. A written report of the incident must be submitted no later than 30 days from the occurrence of the incident. " How are future injuries and property damage caused by unsafe employee actions best reduced? - ansSystematically reinforcing positive employee actions and behavior How can employee exposure to radiation be controlled? - ans"1. Employee exposure to radiation can be controlled by means of "shielding" the source, distance from the source (inverse square law), and reducing the time of exposure. Shielding for alpha rays: paper, aluminum sheets, and even ordinary clothing. Shielding for beta radiation: lead, aluminum and water Shielding for gamma rays: concrete, water, lead and iron " How long does GFCI typically take to open the circuit and interrupt the current flow when it detects current leakage to ground in a circuit? - ans2-3 hundredths of a second (.02-. seconds) How long must OSHA form 300 be retained in the workplace for? - ans"5 years Records of investigations retained 30 years " How many cubic feet of air does a normal worker, performing moderate work, breathe during an 8 hrs per day 40 hour work week? - ans"1500 cubic feet During a moderate workday will breathe about 8.5 cubic meters or 300 cubic of air. " How many years of loss records is a retrospective rating of workers compensation insurance premiums based on? - ansLast three How often does a water fire extinguisher require hydrostatic testing? - ansEvery five years If a direct current rotary generator has a commutator ring; what does a A.C. generator have? - ansSlip rings If a material with a molecular weight of 90 evaporates from an enclosed process tank, where would it accumulate? - ans"On the floor MW is very heavy and molecular weight of air is approximately 30 "
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Management - ansFunction of planning; organizing; coordination and measuring information and using that data to persuade an organization to move in a specific direction. Many NIOSH employees are commissioned officers in what organization? - ansPublic Health Service Marshall v Barlow involved what legal issue for OSHA? - ansThe right of entry MEANS OF EGRESS - ans"· exit access-path leading to exit exit-protected space separated from other parts of building exit discharge-last segment between exit and land outside (door) " Melanoma - ansType of skin cancer caused as a result of over-exposure to ultraviolet radiation. Milkers nodules-viral - ansBreaks in skin. Dairy farmers and workers. Minimum number of people required for a group? - ansThree Minimum riser height and maximum tread width, in inches, for fixed industrial steps recommended by OSHA and ANSI - ans6 ½; 11 Mobile crane has struck a power line laying across the boom. What is proper course of action for the operator to take? - ansStay in the crane until emergency crew arrives. Most fixed temperature heat detectors use: - ansFusible metal; continuous wires separated by insulation and bimetallic strips or disks. Most often recommended fundamental safety training for plant workers? - ansFire extinguisher training, first aid and contingency Motor vehicle standards issued by the Dept of Transportation are not designed to accomplish? - ansProvide a safe, fuel efficient vehicle MSHA requires certain training for each new underground miner-describe the training? - ansSpecific based training Narcosis - ansAcute condition resulting from over-exposure to solvents. Symptoms include disorientation and confusion. Negligence theory of liability? - ans"Involves the conduct or behavior of a person or corporate body regarding something they did or failed to do. Negligence and strict liability are part of tort law. " NFPA 70 Live Work - ans"· Determine shock hazard boundaries Only qualified persons can enter the restricted approach boundary. Entering the prohibited approach boundary is considered the same as touching live parts. These boundaries are for shock protection only; they determine when electrical workers must use voltage-rated (rubber) gloves and voltage rated (fiberglass) tools. " NFPA 70 Live Work - ans"· Determine flash protection boundary
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The default flash protection boundary for systems operating at 600 volts is 48 inches. Qualified person who works closer than 48 inches to live parts must wear PPE clothing including flame resistant clothing. This PPE is for arc-flash and arch-blast protection, not protection against electric shock. " Noise induced hearing loss (NIHL) - ans"Caused as a result of over-exposure to excessive noise. Temporary threshold shift (TTS) or permanent threshold shift (PTS) can result. Presbycusis is loss of hearing due to natural aging. " Nonflammable gases - ansWill not burn under normal concentrations of oxygen Occupational illness caused by a virus? - ans"Hepatitis B is caused by the Hepatitis B virus. Brucellosis and tuberculosis are caused by bacteria " Ornithosis-rickettsial - ansInhalation or contact with infected bird droppings. Zoo workers, pet owners OSHA 1910.145 requires "slow moving vehicle emblems" to be placed on a vehicle when? - ansVehicles, which by design move slowly (25 MPH or less) on the public roads OSHA DART is frequently used in industrial safety work as what type of indicator? - ansAn accident severity rate to compare your severity and frequency against other similar industry rates Portable fire extinguishers - ans"· Rated based on fire class for extinguishment Class A-water Class B-foam or chemical agent Class C-foam or chemical agent Class D-dry powder " Portable fire extinguishers - ans"Rated on floor area to cover 11,250ftsquared 75 feet max travel distance to class A, D 50 feet max travel distance for class B fire Employees must be trained in use of extinguishers " Predictive analytical method designated by the acronym THERP? - ansHuman error-THERP stands for technique for human error rate prediction. It is a quantitive method for estimating the probability of human error occurring during a process or sequence of steps Pressure testing is generally considered to be a potentially what type of test?? - ansDestructive-stringent safety precautions need to be followed
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Smoke detectors - ans"Respond to particles passing through a light beam Beam photoelectric detectors-opacity of smoke Reflected beam-detector senses light reflected from particles Ionization detectors Earliest practical detection Particles intercept ionized air (from radiation source) causing a change in electrical current May be place in HVAV " Sprinkler Head Placement (NFPA 13) - ans"· Maximum allowed protection area per sprinkler not to be exceeded Maximum spacing of 15 feet 18 inches clearing underneath and around sprinkler heads " "Sprinklers NFPA 13 Deluge system and Halon (FM-200) (NFPA 12A)" - ans"Deluge system: Wets down entire area by admitting water to sprinklers open at all times Used in high hazard areas Sprinkler heads are maximum 15 feet apart Halon (FM-200) (NFPA 12A Displaces oxygen Used to protect computer rooms, sensitive expensive equipment " "Sprinklers NFPA 13 Wet pipe and dry pipe system" - ans"Wet Pipe: water in system at all times and water releases when sprinkler head is heated. Dry-pipe system: Pipe filled with compressed air Water released when air pressure drops after opening at sprinkler head Used where freezing may be a problem Main valve must be in heated enclosure " Static electricity NFPA 77 - ans"· Electrical charges build up on the surface of materials Charge is discharged as arc through the air Builds up in dry air Moving fluids, belts and sliding materials build up static charges
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Static charges are controlled through grounding and bonding " Strict liability theory of liability? - ans"Deals with the characteristics of products that are unreasonably dangerous. Negligence and strict liability are part of tort law. " Swimmers itch-parasitic - ansPenetration of wetted skin by snails. Workers in and around fresh water, divers, dock workers, lifeguards, and recreational swimmers. System safety analysis can be applied to what? - ansSystem safety can be applied to almost any system that has interacting components. It is an application of systematic and forward looking techniques to identify and control hazards. Term anhydrous in anhydrous ammonia means______ - ansWithout water Tetanus-bacterial - ansEntrance through breaks in the skin from penetrating or crushing trauma. Persons handling jute or contact with manure. The ASME Code requires that the minimum pressure for a standard hydrostatic test of a compressed air bottle to be 150 % of which of the following pressures? - ansMaximum operating pressure The A-weighted sound level measurement is used as the standard scale in occupational noise measurement because?? - ansWeighing is related to effects of noise on the ear The best protection for employees operating power presses? - ansThe fixed enclosure guard-it is in place all the time. The best reason to use resources from outside the organization to implement a new safety performance strategy? - ansThere is poor alignment across levels of management relating the values that support good safety management The chance of a dust cloud igniting is governed by what? - ans"Oxygen content and dust accumulation Size of dust particles and impurities present Strength of the source of ignition " The forklift driver should keep the times not more than _______ from the ground - ansSix inches The horizontal grouping of elements in the periodic table is called _____ - ans"Period Vertical groupings are families " The maximum frictional force on a body resting on another body is proportional to the____ - ansResultant of all forces perpendicular to the surfaces in contact and the coefficient of static friction
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What analysis technique where individuals are interviewed about accidents, near misses and hazardous conditions is? - ansCritical incident technique What analytical technique deals with human error prediction? - ans"THERP-technique for human error rate prediction FTA is the acronym for fault tree analysis FMECA is the acronym for failure mode effects & criticality analysis PHA is acronym for preliminary hazard analysis " What are asphyxiants? Difference between simple and chemical asphyxiants? - ans"Substances that can cause suffocation by preventing oxygen from reaching tissues. Simple asphyxiants-gases/vapors that are not toxic by themselves but can cause suffocation as a result of reducing the oxygen concentration. i.e hydrogen and nitrogen Chemical asphyxiants-interfere with the body's capability to absorb oxygen into the blood stream. i.e. carbon monoxide and hydrogen cyanide " What are carcinogens? - ansChemicals that have the potential to cause cancer in humans What are corrosives? - ansChemicals that can cause irreversible alteration of a living tissue What are exceptions to workers compensation laws? - ansMost common are: domestic servants; casual (short term =, temporary) laborers; agricultural or seasonal farm laborers; volunteer workers, and workers who are covered by other laws (railroad and maritime workers). What are hazards of ultraviolet radiation? - ans"With skin it may give rise to condition called "erythema" that is commonly called sunburn. Exposure of the unprotected eye can cause inflammation of the cornea, giving rise to conditions known as "keratitis" and "conjunctivitis". " What are irritants? - ansChemicals that can cause inflammation of living tissue as a result of a chemical reaction. What are program audits designed to accomplish? - ansDetermine if the program is following the plan What are rate of rise fire detectors? - ans"They are suitable for fast developing fires and are classified as heat detectors. " What are sensitizers? - ansChemicals that can cause an allergic reaction in the body after repeated exposure.
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What are single celled parasitic organisms that can cause occupational illnesses? - ans"Protozoa are single celled organism and many are parasitic. Bacteria are single celled but not parasitic. Viruses do not have all the components of a cell. " What are solid fuels that can support combustion? - ansSolid fuels are: wood, coal, textiles, paper, plastics, and some metals such as magnesium and cesium. What are the elements of combustion? - ans"Four elements are required for combustion: oxygen, fuel, source of ignition or sufficient heat, and chemical chain reaction. These four elements make the four corners of what is commonly known as fire tetrahedron. To extinguish a fire, we must remove at least one of these four elements. " What are the first symptoms of frostbite? - ans"pins and needles" sensation followed by numbness What are the four types of errors that people generally make? - ansOmission, commission, sequence and timing What are the general rules for considering design recommendations using anthropometry? - ans"· design opening and access areas for the largest population possible design reach envelopes based on the smallest population percentile possible for the greatest user population, incorporate adjustability into every feature of the design design for function " What are the means of heat transfer? - ansConvection, conduction and radiation What are the three components of every noise problem? - ansNoise source; path and receiver What are the three layers of skin? - ansEpidermis; dermis and subcutaneous What are the three main classes of occupancy that the NFPA has for the sprinkler standard? - ansLow hazard; ordinary hazard and extra hazard What are three of the six types of fire protective signaling systems? - ansLocal, central station, proprietary What are two types of warranty? - ansImplied and express warranty. What are variations in noise levels occurring at a rate more than once per second considered?
- ansContinuous What best describes coefficient of variation? - ansStandard deviation divided by the mean What best describes emphysema? - ansExpanded alveoli What best describes the audiogram? - ansA written record of hearing level measured at different frequencies
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What does a root cause analysis report not report? - ansNegligent individuals What does a velometer used for? - ans"· Measures air velocity It can be useful in conducting energy audits It can be useful in hood and spray booth monitoring. " What does an employee have right to do under OSHA act? - ansTo contest the abatement date-NOT to change the abatement date What does explosion proof in reference to electrical equipment mean? - ansCapable of containing internal explosions What does not belong to the halogen family? - ans"Radon Chlorine; astatine and bromine are in the halogen family " What does not require an equipment grounding conductor? - ansDouble insulated hand tool What does PPE do for employee safety and efficiency? - ans"PPE does decrease injuries Efficiency is almost always affected " What does the acronym LTPD stand for? - ansLot total percent defective What doesn't a need assessment do? - ansIt does not identify the type of training required What electrical device is known for the storage of potential energy? - ansCapacitor, electrolytic What encompasses the term noncombustible? - ansFire resistive What equipment is considered "intrinsically safe" - ans"Ordinary wristwatch It cannot release sufficient electrical energy to cause ignition " What factor would not contribute to the absorption of a material used for noise reduction? - ansColor What factors determine the safety factor for natural fiber rope? - ansSize of rope, material and tensile strength What factors influence the destructiveness of dust explosions? - ansPressure rise, pressure developed, duration What federal agency is NIOSH located within? - ansHealth and Human services/CDC What general class of hydrocarbon is the less flammable material acetylene (also called ethyne) catalogued? - ansAlkyne-acetylene is a triple carbon-carbon bond hydrocarbon. What group of hydrocarbons would have the greatest chance of not being flammable? - ansHalogenated hydrocarbons What hazard does compressed oxygen (medical grade) present when assessing the fire risk in hospital rooms? - ansCompressed oxygen can cause a fire to burn much more intensely. What indicates a training instructor projecting a power image? - ansDark suit, relaxed body motions, closed arm stance
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What industry does the Dept. of Labor standards not deal with? - ansHospital What industry is generally credited with early development of system safety techniques? - ansAerospace industry What infection is associated with milk? - ansBrucellosis What information is not included in injury accident analysis? - ansInsurance rate table What internal organ would exposure to a chemical labeled nephrotoxin target? - ansNephrotoxin targets the kidneys-other agents target specific organs. What is a confined space not required to have according to OSHA? - ansNot required to contain or have the potential to contain a hazardous atmosphere What is a Curie (Ci)? - ansA measure of the activity of the radioactive material, one curie is equivalent of 3.7x10-10 disintegrations per second. What is a design defect? - ansDesign defects are unreasonably dangerous characteristics of a product resulting from decisions, calculations, drawings, or specification of the design process. What is a disease associated with animal products? - ansAnthrax What is a disease associated with slaughterhouses? - ansQ-fever What is a form of nonionizing radiation? - ans"Ultraviolet radiation is nonionizing. Alpha; x-ray and gamma are ionizing. " What is a gas chromatograph used for? - ansGas chromatograph is used to analyze a gaseous mixture and determine the concentration of each component in the mixture. "What is a hepatoxin? What is a nephrotoxin?" - ans"Chemicals that attack the liver Chemical that targets kidneys " What is a lethal dose? - ans"It is the dosage of a chemical that can produce death in a certain percentage of laboratory animals. I.e. lethal dose 50 or LD50 is the dosage of a chemical that can produce death in 50 percent (half) of lab animals when entry is by ingestion or skin absorption. Route of entry is by inhalation of a toxic chemical, lethal dose is expressed as lethal concentration or LC. i.e. LC50 is the dosage of a toxic chemical that can produce death in 50 percent of lab animals route is inhalation " What is a light meter? - ansLight meter is the instrument used to measure the quantity of illumination in an area
