1. Hydrologic Cycle

Infiltration — Quiz

Test your understanding of infiltration with 5 practice questions.

Practice Questions

Question 1

Which infiltration model is based on the assumption that the infiltration rate decreases exponentially from an initial maximum rate to a constant final rate?

Question 2

A soil has a saturated hydraulic conductivity ($K_s$) of $0.01 \text{ cm/min}$ and a porosity ($n$) of $0.45$. If the initial moisture content ($\theta_i$) is $0.15$ and the saturated moisture content ($\theta_s$) is $0.40$, what is the effective porosity (moisture deficit) for the Green-Ampt model?

Question 3

Which of the following field measurement techniques for infiltration is most suitable for determining the spatial variability of infiltration across a large area?

Question 4

In the Green-Ampt infiltration model, the cumulative infiltration ($F$) is given by the implicit equation: $F = K_s t + \Psi \Delta \theta \ln(1 + F / (\Psi \Delta \theta))$. If the saturated hydraulic conductivity ($K_s$) is $0.02 \text{ cm/min}$, the wetting front suction head ($\Psi$) is $15 \text{ cm}$, and the moisture deficit ($\Delta \theta$) is $0.30$, what is the approximate cumulative infiltration after $10 \text{ minutes}$?

Question 5

Which of the following best describes the influence of soil texture on infiltration capacity?