This set of Engineering Geology Multiple Choice Questions & Answers (MCQs) focuses on “Water Bearing Qualities of Rocks”.
1. The rock mass which is capable of yielding the contained water economically __________
a) Aquifer
b) Aquiclude
c) Aquifuge
d) Aquitard
View Answer
Explanation: Aquifer is defined as a rock mass, layer or formation which is saturated with groundwater and which virtue of its properties is capable of yielding the contained water at economical costs when tapped.
2. Which among the following is not an example of the good aquifer?
a) Granite
b) Gravels
c) Limestones
d) Sandstones
View Answer
Explanation: Gravels, limestones and sandstones generally form good aquifers when occurring in suitable geological conditions and geographic situations.
3. The formation which may be porous enough to hold enough quantity of water is __________
a) Aquifer
b) Aquiclude
c) Aquifuge
d) Aquitard
View Answer
Explanation: A rock body or formation which may be porous enough to hold enough quantity of water which by virtue of its other properties does not allow an easy and quick flow through it, is called an aquiclude.
4. Example for best aquiclude is __________
a) Granites
b) Gravels
c) Compacted clay
d) Sandstone
View Answer
Explanation: Aquiclude is to be treated as a practically impermeable rock mass. Compacted clay formation are the best example of aquicludes.
5. Which rock formation is absolutely impermeable?
a) Aquifer
b) Aquiclude
c) Aquifuge
d) Aquitard
View Answer
Explanation: Aquifuge is an absolutely impermeable rock formation through which there is no possibility of storage or movement of water.
6. Granite and quartzite are examples of __________
a) Aquifer
b) Aquiclude
c) Aquifuge
d) Aquitard
View Answer
Explanation: Aquifuge is almost free from pores and other interstices. Examples are compact interlocking granites and quartzites.
7. Which is the rock mass where partial perviousness is caused because of profuse jointing or cracks?
a) Aquifer
b) Aquiclude
c) Aquifuge
d) Aquitard
View Answer
Explanation: Aquitard is a less common term used sometimes for an aquifuge or aquiclude that has become locally leaky due to the development of partial perviousness caused because of profuse jointing or cracks.
8. All rocks are suitable for holding groundwater.
a) True
b) False
View Answer
Explanation: All rocks are neither capable nor suitable for holding and transmitting groundwater. The terms like aquifer, aquiclude, aquifuge need to be understood well for studying the concept of groundwater.
Sanfoundry Global Education & Learning Series – Engineering Geology.
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