GATE CE 2020 Set 1 — Question 22
Go beyond PYQs with Success TrackerAI-powered personalised practice and doubt support. Unlimited practice on eligible plans; AI usage limits apply.MCQ+1 / -0.33EasyDarcy's LawPermeabilityGeotechnical Engineering
Geotechnical Engineering → Permeability → Darcy's Law
Last updated
Question
Velocity of flow is proportional to the first power of hydraulic gradient in Darcy's law. This law is applicable to
Correct answer
(A) laminar flow in porous media
Solution
Darcy's law states that the velocity of flow () through a porous medium is directly proportional to the hydraulic gradient (): .
This linear relationship is valid only when the flow is laminar. In groundwater hydrology and soil mechanics, flow is generally considered laminar when the Reynolds number () is less than . For higher Reynolds numbers (transitional or turbulent flow), the relationship between velocity and gradient becomes non-linear.
This linear relationship is valid only when the flow is laminar. In groundwater hydrology and soil mechanics, flow is generally considered laminar when the Reynolds number () is less than . For higher Reynolds numbers (transitional or turbulent flow), the relationship between velocity and gradient becomes non-linear.
Continue learning with Success Tracker
A step still unclear? Work through it with support
Use Success Tracker to ask about the reasoning, then try another GATE CE question to check your understanding.
AI-powered practice· Unlimited practice on eligible plans
- PYQs with solutions
- Attempt available previous-year questions, then compare your reasoning with the worked solution. Coverage varies by stream.
- Practice that adapts
- Choose a topic, work on weaker areas and bookmark questions to revisit. Your attempts feed your progress tracking.
- AI doubt support
- Ask follow-up questions about a step or concept while practising, instead of stopping at the final answer.
Unlimited practice is available on eligible plans. Free practice and AI usage have limits; check the current plan allowances before choosing.
This page stays readable without an account. AI responses can be wrong; check them against the solution and source material.
More questions on Permeability
2026 Set 1 Q18The name of a person in Column 1 is to be matched with the test mentioned in Column 2. | Column 1 |…2026 Set 2 Q21Based on the Casagrande’s plasticity chart, plasticity index (in ) of inorganic clays having a…2026 Set 2 Q22Information related to foundation design is provided in table below. | Column 1 | Column 2 | | :---…2026 Set 1 Q31For a liquid, the permeability of a sandy soil having a void ratio of was determined as…2026 Set 1 Q32To obtain undisturbed clay soil sample, an Area Ratio of needs to be achieved for a…