Question Bank • QB_IDE_EXP_098 NAT • 2 Marks

Section 5: Irrigation and Drainage Engineering

Groundwater Hydrology

Subtopic: Steady and unsteady flow in confined and unconfined aquifers

Question Statement:

The storage coefficient of an unconfined aquifer corresponds to its specific yield $S_y$. A sandy aquifer has porosity $n = 0.35$ and specific retention $S_r = 0.10$. Calculate the specific yield $S_y = n - S_r$ in percentage.

Answer Key:

25

Step-by-Step Solution & Explanation

$S_y = n - S_r = 0.35 - 0.10 = 0.25 = 25.0\%$
← Previous (QB_IDE_EXP_087) Next (QB_IDE_ADV_002) →

Practice In Authentic CBT Exam Interface

Test your skills under authentic timed conditions with live scoring and AIR percentile ranking.

Launch CBT Mock Test