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Q. |
Which of the following statement is correct while compacting concrete with vibrators? |
A. | The vibrator should be inserted horizontally. |
B. | The vibrator should not be immersed through a full depth of freshly laid concrete. |
C. | The vibrator should not touch the form surface. |
D. | all of the above |
Answer» C. The vibrator should not touch the form surface. |
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