Question:
During a sampling operation, the drive sampler is advanced 600 mm and the length of the sample recovered is 525 mm. What is the recovery ratio of the sample?
During a sampling operation, the drive sampler is advanced 600 mm and the length of the sample recovered is 525 mm. What is the recovery ratio of the sample?
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- The recovery ratio is an essential parameter to evaluate the efficiency of a sampling process.
- A recovery ratio close to 1 indicates minimal sample disturbance.
Updated On: Feb 27, 2025
- 0.125
- 0.140
- 0.875
- 0.143
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The Correct Option is C
Solution and Explanation
Step 1: Use the formula for recovery ratio:
\[
R = \frac{L_s}{L_d}
\]
where,
\( L_s = 525 \) mm (length of recovered sample),
\( L_d = 600 \) mm (depth of penetration).
Step 2: Compute the recovery ratio:
\[
R = \frac{525}{600}
\]
Step 3: Calculation:
\[
R = 0.875
\]
Thus, the correct answer is (C) 0.875.
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