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1541.

Leakage factor is the property of:

A.	Confined aquifer	B.	Semi-confined aquifer
C.	Unconfined aquifer	D.	All are correct

1542.

Specific yield is the property of:

A.	Confined aquifer	B.	Semi confined aquifer
C.	Unconfined aquifer	D.	All are correct

1543.

The value of leakage factor for semi or pervious layer ranges between:

A.	100 and 1000 min	B.	100 and 10000 min
C.	100 and 100000 min	D.	100 and 1000000 min

1544.

The water level stands in the well before pumping is:

A.	Static water level	B.	Pumping water level
C.	Piezometric level	D.	Draw down

1545.

The difference between static water level and pumping water level is known as:

A.	Drawdown	B.	Well yield
C.	Specfic capacity	D.	All are correct

1546.

The volume of water discharged per unit time is:

A.	Drawdown	B.	Well yield
C.	Specific capacity	D.	All are correct

1547.

Arch median screw is:

A.	Low head water lift	B.	Medium head water lift
C.	High head water lift	D.	All are correct

1548.

Specific speed of pump expresses relationship between:

A.	Pump speed	B.	Pump discharge
C.	Total head	D.	All are correct

1549.

A 24-litre capacity bucket is filled in 12 seconds by the discharge of Persian wheel, then the rate of flow is:

A.	2 lit/min	B.	20 lit/min
C.	120 lit/min	D.	None of these

1550.

A Persian wheel with an average discharge of 230 lit/min irrigates one-hectare wheat crop in 50 hours. The average depth of irrigation is:

A.	6.9 cm	B.	7.2 cm
C.	9.0 cm	D.	9.6 cm