FLETC Written Exam 4 2023/2024

FLETC Written Exam 4 2023/2024 Three Types of Explosions - ANSWER-Mechanical Chemical Nuclear High Explosive - ANSWER-Explosive which normally requires a blasting cap for initiation and once initiated produces a supersonic detonation with a shattering or brisant effect Detonate without confinement, doesn't need container Low Explosive - ANSWER-Explosive, which when unconfined, responds to initiation by deflagration or burning and produces a pushing effect Transitions from deflagration to detonation when confined Incendiary Explosive - ANSWER-Explosive designed to start fires or destroy sensitive equipment Detonation - ANSWER-Supersonic combustion that propagates through shock compression generating exothermic heat and an accompanying blast wave Deflagration - ANSWER-A subsonic combustion that propagates through thermal conductivity Effects of an Explosion - ANSWER-Thermal Blast Pressure Fragmentation Thermal Effect - ANSWER-Usually seen as a bright flash or fireball at the moment of detonation May cause localized ignition of highly combustible materials