7 November 2011
S.I. Session 28 Quiz
This quiz covers material from the lecture on Monday, Novermber 7th.
Part a) Match the term to its definition:
TERMS:
a)Turbulent b)Channel c) Foreset Beds
d)Laminar e)Saltation f)Capacity
g)Competance h)Topset Beds i) Bottomset Beds
j)Equilibrium k)Viscosity l) Valley
DEFINITIONS:
1)__Trough that carries the water.
2)__Area between the uplands.
3)__In this type of flow, streamlines do not cross or mix, and the fluid tends to have a high viscosity.
4)__ In this type of flow, streamlines form swirls and eddies, and the fluid tends to have a low viscosity.
5) __Total sediment load carried by a stream.
6)__A streams ability to carry particles of a certain size.
7)__Materials deposited on top of the delta.
8)__Thin sediment layers of mud on the seafloor.
9)__Inclined cross beds at the front of the delta.
10)__ This longitudinal profile is steep near the head and almost flat at the mouth.
11)__The process by which particles move along in rivers, i.e. jumping along the beds.
12)__ If a fluid is very high in _____, then it behaves and flows similar to maple syrup or motor oil.
Part b) How are stream properties and sediment transport related?
Part c) True or False:
Mark T (true) or F (false) in the blank provided:
1)__Erosion of sediment takes place on the inside bends of a stream.
2)__Deposition of sediment takes place on the inside beds of a stream.
3)__Waterfalls recede upstream over time, due to the erosive capabilities of water.
4)__During periods of extreme drought, a channel can cut across meander loops.
5)__In braided channels, sediment load exceeds stream capacity.
6)__Higher stream velocity leads to higher suspended and bed loads.
7)__Deltas form at the mouths of rivers where they enter relatively quiet seas.
8)__Only a few streams tend toward the equilibrium longitudinal profile.
9)__ Natural stream flows are always turbulent.
10)__ Niagara falls is receding at the rate of about one meter per year.
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