Engineering Geology Final Exam questions and
answers 2025\2026 A+ Grade
Unsaturated Zone
- correct answer The area above the water table where pores are mostly filled with air
Saturated Zone
- correct answer The area below the water table where pores are filled with water
Capillary Fringe
- correct answer Separated the saturated and unsaturated zones
Overland Flow
- correct answer The precipitation rate exceeds the infiltration capacity of the ground
Interflow
- correct answer Horizontal movement of infiltrated water in the unsaturated zone
Baseflow
- correct answer Groundwater that is being discharged into a stream
Drainage Basin
- correct answer "an area of land that drains all the streams and rainfall to a common outlet"-USGS
-watershed, catchment basin, water/river basin
Streamflow
- correct answer Basic flow rate equation: Q=VA
-Q = flow rate, ft^3/sec
-V = water velocity, ft/sec
-A = cross-sectional area, ft^2
, Hydrograph
- correct answer -Graph showing the time (X) vs. rate of flow, discharge, (Y) in a river, channel, or
conduit
-Time plotted arithmetically
-Discharge may be plotted logarithmically or arithmetically, depending on range
-Units: ft^3/sec and m^3/sec
-Sometimes a stage hydrograph is used, where instead of rate, the gage height (or stage) is plotted
against time
Surface Water Problems
- correct answer -flooding
-sedimentation
-erosion
-water quality
Groundwater
- correct answer A vital resource that provides 2/3 of freshwater resources:
1. drinking water for people and livestock
2. agriculture
3. industry
Porosity
- correct answer the total volume of an open space
Permeability
- correct answer the ease of water flow due to pore interconnectedness
Aquifer
- correct answer sediment or rock that transmits water easily
answers 2025\2026 A+ Grade
Unsaturated Zone
- correct answer The area above the water table where pores are mostly filled with air
Saturated Zone
- correct answer The area below the water table where pores are filled with water
Capillary Fringe
- correct answer Separated the saturated and unsaturated zones
Overland Flow
- correct answer The precipitation rate exceeds the infiltration capacity of the ground
Interflow
- correct answer Horizontal movement of infiltrated water in the unsaturated zone
Baseflow
- correct answer Groundwater that is being discharged into a stream
Drainage Basin
- correct answer "an area of land that drains all the streams and rainfall to a common outlet"-USGS
-watershed, catchment basin, water/river basin
Streamflow
- correct answer Basic flow rate equation: Q=VA
-Q = flow rate, ft^3/sec
-V = water velocity, ft/sec
-A = cross-sectional area, ft^2
, Hydrograph
- correct answer -Graph showing the time (X) vs. rate of flow, discharge, (Y) in a river, channel, or
conduit
-Time plotted arithmetically
-Discharge may be plotted logarithmically or arithmetically, depending on range
-Units: ft^3/sec and m^3/sec
-Sometimes a stage hydrograph is used, where instead of rate, the gage height (or stage) is plotted
against time
Surface Water Problems
- correct answer -flooding
-sedimentation
-erosion
-water quality
Groundwater
- correct answer A vital resource that provides 2/3 of freshwater resources:
1. drinking water for people and livestock
2. agriculture
3. industry
Porosity
- correct answer the total volume of an open space
Permeability
- correct answer the ease of water flow due to pore interconnectedness
Aquifer
- correct answer sediment or rock that transmits water easily
