Water Resources Engineering and Hydrology (3160610) MCQs

MCQs of Ground water

Showing 41 to 50 out of 56 Questions
2 3 4 5 6
41.

A perched aquifer is found within

(a)

 unconfined aquifer
(b)

confined aquifer
(c)

aquiclude
(d)

both confined and unconfined aquifer
Answer:

Option (a)

42.

The specific capacity of a confined well under equilibrium condition and within the working limits of drawdown

(a)

is constant at all drawdowns
(b)

 decreases as the drawdown are increased
(c)

increases as the drawdown are increased
(d)

may increase or decrease
Answer:

Option (b)

43.

The standard specific capacity of a well is the well-discharge per unit of drawdown. This value of discharge should be obtained at

(a)

any drawdown
(b)

 a particular drawdown of 3 m
(c)

the first 1 m of drawdown
(d)

the first 2 m of drawdown
Answer:

Option (c)

44.

An example of aquitard stratum in the ground profile is a layer of 

(a)

 granite rock
(b)

clay
(c)

sandy clay
(d)

sandstone
Answer:

Option (c)

45.

An aquifer which is confined at its bottom but not at the top is called 

(a)

semi-confined aquifer
(b)

 confined aquifer
(c)

unconfined aquifer
(d)

artesian aquifer
Answer:

Option (c)

46.

The clogging of well screens and consequent reduction in pump efficiency is indicated by 

(a)

the high value of the well-loss
(b)

 the low value of the well-loss
(c)

variable value of the well-loss
(d)

both high and low value of the well-loss
Answer:

Option (a)

47.

The most widely used type of a deep state tube well in India is 

(a)

cavity well
(b)

 strainer tube well
(c)

slotted pipe gravel packed tube well
(d)

both cavity and strainer tube well
Answer:

Option (b)

48.

The general average yield from standard tube wells is of order of

(a)

5 L/sec
(b)

50 L/sec
(c)

500 L/sec
(d)

5000 L/sec
Answer:

Option (b)

49.

Which of the following tubewell is suitable when a deep bearing stratum lies below an impervious layer and water contribution can take place through bottom only?

(a)

 Strainer type tubewell
(b)

 Abyssinian tubewell
(c)

Cavity type tubewell
(d)

Slotted type tubewell
Answer:

Option (c)

50.

 What is the measure of the fineness of an aquifer?

(a)

Average grain size
(b)

Effective diameter
(c)

Mean particle size
(d)

Uniformity coefficient
Answer:

Option (b)

Showing 41 to 50 out of 56 Questions
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