OPSC OAS 2023 PrelimsScience & TechnologyQuestion 2
Solved previous year question from the OPSC OAS/OCS 2023 Preliminary Examination (General Studies), with the official answer key and a detailed explanation.
Question
Which among the following has the least thermal conductivity?
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Answer & Explanation
Correct answer: Not valued by OPSC (question dropped from evaluation)
| Material | Thermal Conductivity Range |
|---|---|
| Pure Metals | Very high — 15 to 430 W/mK |
| Superconductors | Varies enormously by material and state |
| Alloys | Lower than pure metals — 15 to 120 W/mK |
| Semiconductors | Generally low — 1 to 150 W/mK |
