MCQOPTIONS
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| 1. |
Which of the following statement is INCORRECT with respect to First class bricks? |
| A. | No impression should be left on the brick when a scratch is made by a finger nail. |
| B. | A metallic or ringing sound should come when two bricks are struck against each other. |
| C. | Water absorption of about 22% of its dry weight is allowed. |
| D. | These should be free from flaws, cracks and stones. |
| Answer» D. These should be free from flaws, cracks and stones. | |