Passage:
In underground coal mining, limestone dust is routinely sprayed along the ceilings, walls, and floors of active shafts. While a primary methane gas ignition creates an isolated initial blast, the resulting shockwave suspends accumulated coal particles into the mine's atmosphere. Maintaining a high concentration of inert limestone dust ensures that when the shockwave disperses the particulate matter, the non-combustible rock dust dilutes the airborne fuel and absorbs thermal energy, halting flame propagation.
Statement:
It can be inferred from the passage that rock dusting is designed to mitigate secondary explosions rather than prevent the initial methane ignition.
Cevap: Cevap
Cevap
True
The passage details that an initial methane blast creates a shockwave which lifts coal particles, and inert limestone dust works by diluting that fuel-air mixture and absorbing heat. Because the rock dust activates during the shockwave dispersion to halt propagation, the text implies that rock dusting is intended to suppress secondary chain reactions rather than prevent the initial methane ignition.
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Anahtar Kavram
Inferring unstated relationships and functional limits of procedures from contextual cause-and-effect clues.