Given that prolonged exposure to high-pressure thermal fluid directly degrades the crystalline matrix of synthetic polymers, extreme geothermal drilling conditions have predictably __________ the structural lifespan of standard borehole seals; indeed, forensic engineering reports attribute recent catastrophic seal failures directly to this thermal degradation.
Which of the following words best completes the sentence?
- curtailedAnswer
- Bbolstered
- Cobviated
- Dprotracted
- Esanctioned
Answer
The word 'curtailed' correctly completes the sentence by establishing that severe drilling conditions reduce or shorten the lifespan of borehole seals.
The sentence relies on cause-and-effect and supporting structure. The opening clause introduced by 'Given that' establishes that thermal fluid degrades the polymer matrix. Consequently, extreme conditions must predictably reduce or shorten ('curtail') the structural lifespan of the seals. The clause following the semicolon ('indeed, forensic engineering reports attribute recent catastrophic seal failures directly to this thermal degradation') provides additional support confirming this negative impact.
Step-by-Step Solution
Key Concept
Identifying support and causal clues to determine contextual valence and semantic alignment in Text Completion.