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GATE Exam Questions - Engineering

Q1:

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

ANS:B - Evapotranspiration and capillary potential

A tensiometer in soil science is a measuring instrument used to determine the matric water potential (soil moisture tension).

A lysimeter is a measuring device which can be used to measure the amount of actual evapotranspiration which is released by plants, usually crops or trees.