1031. An artesian spring is formed :

A. When a vertical cut exposes an aquifer in a valley
B. As a result of a continuous fault in a rock that allows water to escape under pressure
C. When two impervious strata enclose a porous strata *
D. None of the above

1032. The quantity of water available from an infiltration gallery depends upon the :

A. Size of gallery
B. Nature of soil
C. Yield of source
D. All of the above

1033. The quality of tube well water is __________ as compared to surface water :

A. Good *
B. Poor

1034. Which of the following statement is wrong ?

A. The sub-surface sources are not affected by draught
B. Penetration displays are generally appropriate for expanding the surface source supply in dry season
C. The rate at which water percolates into well under safe maximum critical depression head is called yield of well
D. All of the above
E. None of the above *

1035. The artesian spring has too much hydraulic gradient and water flowsout automatically :

A. Right *
B. Wrong

1036. The water bearing strata is called :

A. An acquifer *
B. An aquiclude
C. An aquifuge
D. Zone of saturation

1037. The portion of soil that allows water to move laterally is known as:

A. Water table
B. An aquiclude
C. Zone of saturation *
D. None of the above

1038. The most important source of water for public water supply is :

A. Lake
B. Pond
C. River
D. Sea *

1039. THE Natural outflow of sub surface water at the surface is termed as spring :

A. Correct *
B. Incorrect

1040. The water of river has an important property called :

A. Turbidity
B. Self purification *
C. Permeability
D. Infilteration capacity