EXAM Newest 2026-2027 Complete 70 Questions And
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Armed Charge - CORRECT ANSWER: An explosive cartridge that contains a detonator
Artificial barricade - CORRECT ANSWER: An artificial mount berm or wall of earth with a
minimum thickness of 3 feet
Barricaded - CORRECT ANSWER: The effective screening of a building or magazine that
contains explosive materials from another magazine or building by natural or artificial barrier
Binary Explosive - CORRECT ANSWER: A detonator-sensitive high explosive consisting of
two substances, an oxidizer and a fuel, that when mixed together form an explosive.
Black Powder - CORRECT ANSWER: A deflagrating or low explosive compound of an intimate
mixture of sulfur, charcoal, and alkali nitrate.
Blast Area - CORRECT ANSWER: The area of a blast within the influence of flying rock
missiles, gases, and concussion.
Blast pattern - CORRECT ANSWER: The plan of the drill holes laid out for blasting. Composed
of the burden distance, the spacing distance, and their relationship to each other.
Blast Site - CORRECT ANSWER: Area where explosives are handled for blasting operations. A
distance of 50 feet is required in all directions from explosive charges, loaded boreholes, and to
be loaded boreholes
, Blaster - CORRECT ANSWER: A type 1 individual who is permitted to possess and control the
use of explosives
Blasting Agent - CORRECT ANSWER: An explosive material which meets prescribed criteria
for insensitivity to initiation
Blasting Cap - CORRECT ANSWER: A detonator which is initiated by a safety fuse
Blasting Mat - CORRECT ANSWER: A mat of woven steel, wire, rope, scrap tires, etc to cover
blast holes for the purpose of preventing flying rock missiles
Booster - CORRECT ANSWER: An explosive charge designed to be used in the initiation
sequence between an initiator or primer and the main explosive charge.
Borehole - CORRECT ANSWER: A hole drilled in the material to be blasted that contains an
explosive charge
Burden - CORRECT ANSWER: Distance from the borehole and the nearest free face
Bus wire - CORRECT ANSWER: Expendable heavy gauge bare copper wire used to connect
detonators
Charge per delay - CORRECT ANSWER: Any charges firing within an 8 millisecond time
period are considered to have a cumulative effect on vibration and air over-pressure effects. They
are summed within 8-millisecond intervals
Collar - CORRECT ANSWER: The mouth or opening of a borehole
Connecting Wire - CORRECT ANSWER: Wire used to extend the firing line or leg wires in the
electric blasting circuit