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1621.

Chemical that is found to be most suitable as water evaporation inhibitor is to:

A.	Methyl alcohol	B.	Ethyl alcohol
C.	Cetyl alcohol	D.	All are correct

1622.

Evapotranspiration is confined:

A.	Day time	B.	Night time
C.	Both (a) and (b)	D.	None of these

1623.

Which method is used for estimation of evaporation?

A.	water budget method	B.	Energy balance method
C.	Mass transfer method	D.	All are correct

1624.

Lysimeter is used to measure:

A.	Evaporation	B.	Evapotranspiration
C.	Atmospheric pressure	D.	None of these

1625.

The lines on a map through places having equal depth of evapotranspiration is called:

A.	Isohyets	B.	Isobar
C.	Isopleths	D.	None of these

1626.

Settlement of an embankment depends on:

A.	Void ratio	B.	Density of soil
C.	Water viscosity	D.	All are correct

1627.

Interception losses includes:

A.	Evaporation loss only	B.	Evaporation through flow and stream
C.	Evaporation and transpiration losses	D.	Stream flow only

1628.

Infiltration is measured by the:

A.	Infiltrometer	B.	Evaporimeter
C.	Hydrometer	D.	None of these

1629.

The average infiltration rate is called:

A.	Infiltration capacity	B.	Infiltration index
C.	Both (a) and (b)	D.	None of these

1630.

The science which deal with the measurement of flow is known as:

A.	Hydro-meteorology	B.	Hydrometry
C.	Hypsometry	D.	None of these