McqMate
| Q. |
Cork is a good insulator because |
| A. | it is flexible |
| B. | it can be powdered |
| C. | low density |
| D. | it is porous |
| Answer» D. it is porous | |
| Explanation: cork has thermal conductivity in the range of 0.05-0.10 which is very low so it can be porous. | |
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