Question

Lysimeter and Tensiometer are used to measure respectively, one of the following groups of quantities:

• A. Capillary potential and permeability
• B. Evapotranspiration and capillary potential
• C. Velocity in channels and vapour pressure
• D. Velocity in pipes and pressure head

Answer 1

The correct option is B Evapotranspiration and capillary potential

Evapotranspiration $\to$ Lysimeter
capillary potential $\to$ Tensiometer

$\begin{array}{cc}\text{Property}& \text{Measuring instrument}\\ \text{i. Transpiration}& \text{Phytometer}\\ \text{ii. Evaporation}& \text{Atmometer}\\ \text{iii. Hydraulic Conductivity}& \text{Permeameter}\\ \text{iv. Infiltration capacity}& \text{Infiltrometer}\\ & \text{Rainfall simulator}\\ \text{v. Humidity}& \text{Hygrometer}\\ \text{vi. Relative Humidity}& \text{Psychrometer}\\ \text{vii. Wind speed}& \text{Anemometer}\end{array}$