Water Resources Engineering and Hydrology (3160610) MCQs

MCQs of Ground water

Showing 31 to 40 out of 56 Questions
1 2 3 4 5 6
31.

What is the volume of groundwater which can be extracted by gravity drainage from a soil stratum when expressed as percentage fraction of the volume of the soil stratum?

(a)

Pellicular water
(b)

Available water
(c)

Specific yield
(d)

Field capacity
Answer:

Option (c)

32.

Field capacity of a ground aquifer equals 

(a)

specific yield
(b)

100 – specific yield
(c)

100/ specific yield
(d)

 field capacity
Answer:

Option (b)

33.

 Water wells excavated through confined aquifers are known as 

(a)

artesian wells
(b)

 non-artesian wells
(c)

gravity wells
(d)

water table wells
Answer:

Option (a)

34.

In case of a flowing well, the piezometric surface is always

(a)

below the ground level
(b)

 above the ground level
(c)

at the ground level
(d)

above or below the ground level
Answer:

Option (b)

35.

The line joining the static water levels in several wells excavated through a confined aquifer is known as the

(a)

cone of depression
(b)

piezometric surface
(c)

 perched water-table
(d)

hypsometric curve
Answer:

Option (b)

36.

The permeability of an aquifer (m/day) will

(a)

 increase with an increase in temperature of water flowing through the aquifer
(b)

decrease with an increase in temperature of water flowing through the aquifer
(c)

not get affected by the change in temperature of water flowing through the aquifer
(d)

 increase up to 20°C and then decreases with the increase in the temperature of water flowing through the aquifer
Answer:

Option (a)

37.

 The discharge per unit drawdown at a well is known as

(a)

 specific yield
(b)

specific retention
(c)

specific capacity
(d)

specific storage
Answer:

Option (c)

38.

Coefficient of storage (A) has the dimensions of 

(a)

 L3
(b)

 L
(c)

L2
(d)

Dimensionless
Answer:

Option (d)

39.

The units of specific capacity of a well are

(a)

m3/sec
(b)

m2/sec
(c)

 m/sec
(d)

no units
Answer:

Option (b)

40.

 Specific yield for an unconfined aquifer is

(a)

greater than porosity
(b)

less than porosity
(c)

equal to porosity
(d)

unrelated to porosity
Answer:

Option (b)

Showing 31 to 40 out of 56 Questions
1 2 3 4 5 6