Blaster's Exam with precise detailed solutions

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Blaster's Exam with precise detailed solutions || || || || ||




Air blast - ✔✔a pressure wave from a blast traveling through the atmosphere
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ATF - ✔✔the bureau of alcohol, tobacco, firearms, and explosives of the United States
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department of justice || ||




ATF permit or license - ✔✔the permit or license issued by the ATF and required by 18
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U.S.C. § 842 for any person who intends to engage in business as an explosive materials
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user, importer, manufacturer, or dealer
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Blast/Shot - ✔✔the act of detonating explosive materials joined by a shared initiation
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system and a single firing device
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Blast hole - ✔✔a hole drilled in rock or other material for the placement of explosives
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Blaster - ✔✔a person qualified by reason of training, knowledge, experience and
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registration to fire or detonate explosives in blasting operations
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Blasting operation - ✔✔the use of explosives in the blasting of stone, rock, ore or any other
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natural formation, or in any construction or demolition work
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Charge - ✔✔a quantity of explosives that is to be detonated within a segregated position in
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the blast design
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Scaled distance - ✔✔the actual distance in feet divided by the square root of the maximum
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charge weight per delay period, in pounds
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Commissioner - ✔✔commissioner of commerce and insurance || || || || || ||




Delay - ✔✔a period of time until detonation after application of energy to the ignition
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system



Delay period - ✔✔a time separation of eight (8) milliseconds or greater between detonation
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of charges
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Department - ✔✔the department of commerce and insurance || || || || || || ||




Distance - ✔✔the actual distance in feet along ground contour to the nearest dwelling
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house, public building, school, church, commercial or institutional building normally
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occupied



Explosives - ✔✔any chemical compound or other substance or mechanical system intended
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for the purpose of producing an explosion, or that contains oxidizing and combustible units
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or other ingredients in such proportion or quantities that ignition by detonation may
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produce an explosion, capable of causing injury to persons or damage to property
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Handler - ✔✔a person qualified by reason of training, knowledge, experience and
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registration to accept custody and possession of explosives in blasting operations
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Letter of denial - ✔✔a written notification from the ATF indicating that an individual is not
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approved to possess, use, manufacture, distribute, transport, or direct the use or
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management of explosives || ||




Limited blaster - ✔✔a person qualified by reason of training, knowledge, experience and
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registration to fire or detonate not more than five (5) pounds of explosives per blast
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Person - ✔✔an individual, public or private corporation, political subdivision, government
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agency, municipality, industry, co-partnership, association, firm, trust, estate or other entity
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whatsoever



Weight - ✔✔the maximum weight of explosive, in pounds. For the sole purpose of using the
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formula set forth in § 68-105-104, "weight" means maximum pounds per delay period
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Tennessee code 65-105-103 - ✔✔Requirements governing blasting: || || || || || ||




How many business days should the blaster notify the department of commerce and
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insurance and the utility company when conducting blasting operations within how many
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ft of any pipeline? - ✔✔3 Days, 100'
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Should blasting operations be conducted within close proximity of any public highway. -
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✔✔No, unless reasonable precautionary measures are taken to safeguard the public
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When is it okay to conduct blasting operations at the immediate location of any dwelling
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house, public building, school, church, commercial or institutional building that would
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result in ground vibrations having a particle velocity exceeding the limits? - ✔✔Written
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consent from property owners || || ||




Ways to control the throw of fragments from a blast? - ✔✔loading, delaying, initiation, and
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confinement of each blast with mats or other methods || || || || || || || ||




When should the blaster provide notice to all structures in the area? - ✔✔Where the
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standard table of distance is exceeded, that is, a scaled distance that is less than 50
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