ExamVeda
Login
Home

Groundwater and Hydrogeology MCQs Questions & Answers | Geological Engineering

Learn and practice multiple-choice questions (MCQs) with answers related to Groundwater and Hydrogeology. These resources are available for Geological engineering students who wish to clear GATE exams, technical interviews, competitive examinations, and other entrance exams. The Groundwater and Hydrogeology chapter is particularly important for students studying Geological engineering. Page-7 section-1

Each section contains 100 MCQs on Groundwater and Hydrogeology .
61
What is the main driving force for groundwater movement?
Discuss
Answer & Solution
Answer: Option C
Solution:
Hydraulic gradient is the primary force that drives groundwater flow from areas of high head to low head.It results from differences in pressure and elevation in the aquifer.
62
What does transmissivity of an aquifer represent?
Discuss
Answer & Solution
Answer: Option B
Solution:
Transmissivity is the rate at which groundwater flows through a unit width of an aquifer under a unit hydraulic gradient.It is the product of permeability and saturated thickness.
63
The water table is defined as:
Discuss
Answer & Solution
Answer: Option A
Solution:
The water table marks the upper surface of the saturated zone, where pore pressure is equal to atmospheric pressure.It fluctuates with seasons and rainfall.
64
In which type of aquifer does water rise above the top of the aquifer when tapped?
Discuss
Answer & Solution
Answer: Option A
Solution:
A confined aquifer is under pressure between impermeable layers.When tapped by a well, water can rise above its top, forming an artesian condition.
65
Which zone lies between the land surface and the water table?
Discuss
Answer & Solution
Answer: Option B
Solution:
The zone of aeration (or vadose zone) lies above the water table and contains both air and water in pores.Water moves vertically here to recharge the aquifer.
66
Which of the following is NOT a source of groundwater contamination?
Discuss
Answer & Solution
Answer: Option D
Solution:
Bedrock composition is a natural geologic feature and does not directly cause contamination.Other options can introduce chemicals or pathogens.
67
Which structure is used to control groundwater flow in foundations?
Discuss
Answer & Solution
Answer: Option B
Solution:
A grouting curtain is a barrier formed by injecting grout into soil or rock to reduce permeability and prevent groundwater seepage.
68
Which factor does NOT directly affect groundwater recharge?
Discuss
Answer & Solution
Answer: Option D
Solution:
Cloud type does not directly influence groundwater recharge.Infiltration depends on surface and subsurface conditions like permeability, vegetation, and slope.
69
What is the role of a pumping test?
Discuss
Answer & Solution
Answer: Option B
Solution:
A pumping test is conducted to determine aquifer properties like transmissivity and storage by analyzing drawdown and recovery data.
70
In hydrogeology, storativity refers to:
Discuss
Answer & Solution
Answer: Option B
Solution:
Storativity (or storage coefficient) is the amount of water an aquifer releases or stores per unit surface area of the aquifer per unit change in head.