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1631.

Which of the following instruments is connected with stream flow measurement?

A.	Electro-magnetic flow meter	B.	Sounding weight
C.	Eco-depth recorder	D.	All are correct

1632.

The slop area method is extensively used in:

A.	Case where shifting control exist	B.	Case where backwater effect is present
C.	Development of rating curve	D.	Estimation of flood discharge based on high water mark

1633.

A hydrograph is a plot of:

A.	Stream discharge against time	B.	Rainfall intensity against time
C.	Cumulative runoff against time	D.	Cumulative rainfall vs time

1634.

Direct runoff is made up of:

A.	Overland flow	B.	Surface runoff and prompt inter flow
C.	Surface runoff and infiltration	D.	Rainfall and evapotranspiration

1635.

Flow-duration curve is plot of:

A.	Discharge versus time in chronological order	B.	Stream discharge against per cen of time the flow is equaled or exceeded
C.	Accumulated flow versus time	D.	None of these

1636.

Flow mass curve is a plot of:

A.	Cumulative flow versus time	B.	Cumulative discharge volume again t time in chronological order
C.	Both (a) and (b)	D.	None of these

1637.

Flow mass curve is an integral curve of:

A.	Flow-duration curve	B.	S-curve
C.	Hyetograph	D.	Hydrograph

1638.

A situation where more than 25% decrease in precipitation from the normal over an area is called:

A.	Hydrological drought	B.	Meteorological drought
C.	Agricultural drought	D.	None of these

1639.

When the soil moisture and rainfall are inadequate during the growing season to support healthy crop growth to maturity is called:

A.	Metrological drought	B.	Hydrological drought
C.	Agricultural drought	D.	None of these

1640.

Factor which affects the flood hydrograph, is:

A.	Shape of basin	B.	Size of basin
C.	Slope of basin	D.	All are correct