| Q. |
Which of the following shading device will transmit least leat inside a room? |
| A. | Plain glass sheet 3 mm thick |
| B. | Plain glass sheet with wire mesh outside |
| C. | Plain glass sheet with Venetion blind inside |
| D. | Plain glass with curtain inside |
| E. | None of the above |
| Answer» D. Plain glass with curtain inside | |
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