Hydrology, open channel flow, Manning equation, pipe networks, water and wastewater treatment and groundwater.
39 cards · basic cards · AI-written, checked twice. Edit anything.
- Define the hydrologic cycle
Show answer
The continuous process of water evaporation from surfaces, condensation in atmosphere, and precipitation returning to land and water bodies- Manning equation for open channel flow
Show answer
V = (1.49/n) * R^(2/3) * S^(1/2), where V is velocity, n is roughness coefficient, R is hydraulic radius, S is slope- What does Froude number (Fr) indicate in open channel flow?
Show answer
The ratio of inertial to gravitational forces; Fr < 1 is subcritical, Fr = 1 is critical, Fr > 1 is supercritical- Define coagulation in water treatment
Show answer
Chemical process using coagulants to destabilize colloidal particles, allowing them to agglomerate and settle- State Darcy's law for groundwater flow
Show answer
Q = K * A * (dh/dl), where Q is flow rate, K is hydraulic conductivity, A is area, dh/dl is hydraulic gradient- What is infiltration in hydrology?
Show answer
The process by which water enters the soil from the ground surface- Typical Manning's n values range from
Show answer
0.01 to 0.08 depending on surface roughness; concrete channels are lower (0.012-0.015), natural channels higher (0.03-0.06)- Hydraulic radius formula
Show answer
R = A / P, where A is cross-sectional area and P is wetted perimeter- Describe the activated sludge process
Show answer
Secondary wastewater treatment where microorganisms consume organic matter in an aerated basin, settling removes the biomass- Darcy-Weisbach equation for pipe flow
Show answer
h_f = f * (L/D) * (V^2 / 2g), where f is friction factor, L is length, D is diameter, V is velocity, g is gravity- Chezy equation relates velocity to
Show answer
V = C * sqrt(R * S), where C is Chezy coefficient, R is hydraulic radius, S is slope- In flood frequency analysis, what is a 100-year flood?
Show answer
A flood with a 1 percent probability of occurring or being exceeded in any given year- What does the Moody diagram show?
Show answer
The relationship between friction factor, Reynolds number, and relative roughness for pipe flow- Define infiltration capacity
Show answer
The maximum rate at which soil can absorb water, typically decreasing over time as soil pores become saturated- Manning equation in the form h = ____, where h is head loss over length L
Show answer
(n*V*L)/(1.49*R^(2/3))
FlashKeepers