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The total blow required for the second and third 15 cm of penetration in standard penetration test is taken as ____________

The total blow required for the second and third 15 cm of penetration in standard penetration test is taken as ____________ Correct Answer Seating drive

In standard penetration test, the first 15 cm of drive may be considered to be a seating drive. The total blows required for the second and third 15 cm of penetration is termed as the penetration resistance N.

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