CM 3503 Exam 2 Test Questions and
All Correct Answers.
aquifer - Answer a soil that allows for fast movement of water (ex: sand)
aquiclude - Answer a soil that has slow movement of water (ex: clay)
voids through which water can flow - Answer soils are permeable due to the existence of
what?
false, high to low - Answer (T/F) in soil, water flows from points of low energy to points of
high energy.
laminar - Answer when water flows in a smooth orderly fashion (slow velocity) it is
considered _______.
turbulent - Answer when water swirls as it moves (high velocity) it is considered _______.
permeability - Answer coefficient of _______ describes the ease with which a certain liquid
flows through a certain soil.
darcy's law - Answer formula that describes the relationship between the discharge velocity
and the hydraulic gradient
true - Answer (T/F) darcy's law is only valid for laminar flow conditions.
grain-size distribution, void ratio, fluid viscosity, and degree of soil saturation - Answer
hydraulic conductivity (k) depends on what 4 things?
constant-head test - Answer ________ is a laboratory test for hydraulic conductivity that is
used for coarse grained soils. the amount of water collected is determined after time, t. the
discharge is calculated and hydraulic conductivity is computed.
falling-head test - Answer ________ is a laboratory test for hydraulic conductivity that is
more suitable for low hydraulic conductivities (e.g. clay). The head and flow rate are not
constant.
false, low - Answer (T/F) soil materials have very high tensile strength
All Correct Answers.
aquifer - Answer a soil that allows for fast movement of water (ex: sand)
aquiclude - Answer a soil that has slow movement of water (ex: clay)
voids through which water can flow - Answer soils are permeable due to the existence of
what?
false, high to low - Answer (T/F) in soil, water flows from points of low energy to points of
high energy.
laminar - Answer when water flows in a smooth orderly fashion (slow velocity) it is
considered _______.
turbulent - Answer when water swirls as it moves (high velocity) it is considered _______.
permeability - Answer coefficient of _______ describes the ease with which a certain liquid
flows through a certain soil.
darcy's law - Answer formula that describes the relationship between the discharge velocity
and the hydraulic gradient
true - Answer (T/F) darcy's law is only valid for laminar flow conditions.
grain-size distribution, void ratio, fluid viscosity, and degree of soil saturation - Answer
hydraulic conductivity (k) depends on what 4 things?
constant-head test - Answer ________ is a laboratory test for hydraulic conductivity that is
used for coarse grained soils. the amount of water collected is determined after time, t. the
discharge is calculated and hydraulic conductivity is computed.
falling-head test - Answer ________ is a laboratory test for hydraulic conductivity that is
more suitable for low hydraulic conductivities (e.g. clay). The head and flow rate are not
constant.
false, low - Answer (T/F) soil materials have very high tensile strength
