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How can the quality of timber be checked via sound?(a) Timber struck by hammer(b) Timber tapped by hand(c) Timber knocked by chisel(d) Two timber pieces struck together |
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Answer» Correct answer is (d) Two timber pieces struck together The best explanation: Just as in the case of bricks, two timber pieces are taken and struck against each other. A good quality timber should make a clear ringing sound. |
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