36.1.3.1 - Constant head test
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Practice Questions
Test your understanding with targeted questions
What is the main purpose of the constant head test?
💡 Hint: Think about the types of soils involved.
Name one type of soil suitable for the constant head test.
💡 Hint: Consider what types of soil have larger particles.
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Interactive Quizzes
Quick quizzes to reinforce your learning
What does the constant head test measure?
💡 Hint: Think about water movement in soil.
True or False: The constant head test can be used for measuring fine-grained soils.
💡 Hint: What do we know about fine-grained versus coarse-grained soil?
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Challenge Problems
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A soil sample has a permeability coefficient (k) of 0.02 m/s. If water flows through the sample at a constant hydraulic head of 1 meter, how much water will flow through a 1 square meter area in one hour?
💡 Hint: Consider the conversion between seconds and hours in your calculation.
A constant head test is done on a soil which reveals a flow of 0.5 m³ in 10 minutes at a head of 1 m. If the cross-sectional area was 0.1 m², calculate the coefficient of permeability.
💡 Hint: Convert time from minutes to seconds as needed for your calculations.
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