18-Env-A2 Hydrology and Municipal Hydraulics Engineering
Worked solutions to 14 past sittings (2013–2019), 98 questions. Pick a sitting, or start from a topic below.
- December 2019
- December 2018
- May 2018
- December 2017
- May 2017
- December 2016
- May 2016
- December 2015
- May 2015
- December 2014
- May 2014
- December 2013
- May 2013
- Undated paper
Topics across the sittings
Topics that come up in more than one sitting, taken from the headings of our worked solutions. A topic counts once per sitting.
- Hydrologic Cycle (5 sittings): May 2016 Q2 · December 2015 Q5 · May 2015 Q5 · December 2014 Q5 · May 2014 Q2
- Sanitary Sewer Design (5 sittings): December 2015 Q4 · May 2015 Q4 · December 2014 Q4 · May 2014 Q5 · May 2013 Q1
- Closed-Pipe Hydraulics (4 sittings): May 2015 Q1 · December 2014 Q1 · May 2014 Q1 · May 2013 Q4
- Pipe Network Analysis (4 sittings): May 2015 Q3 · December 2014 Q3 · May 2014 Q5 · May 2013 Q7
- Conceptual Runoff Models (3 sittings): May 2016 Q1 · December 2015 Q2 · December 2013 Q1
- Hardy-Cross Pipe Network (3 sittings): May 2016 Q5 · December 2015 Q3 · December 2013 Q5
- Hydrologic Abstraction (3 sittings): May 2015 Q2 · December 2014 Q2 · December 2013 Q3
- Open-Channel Flow (3 sittings): May 2015 Q7 · December 2014 Q7 · May 2014 Q7
- Runoff Models (3 sittings): May 2015 Q1 · December 2014 Q1 · May 2013 Q4
- Stormwater Ponds (3 sittings): May 2016 Q6 · May 2015 Q6 · December 2014 Q6
- Flood Frequency Analysis (2 sittings): December 2014 Q4 · May 2014 Q6
- IDF Curves (2 sittings): May 2016 Q3 · December 2015 Q6
- IDF-Based Peak Runoff Design (2 sittings): May 2015 Q6 · December 2014 Q6
- Pump System Curves (2 sittings): May 2015 Q3 · December 2014 Q3
- Rational Method (2 sittings): December 2015 Q6 · December 2014 Q5
Questions by sitting
December 2019
December 2018
May 2018
December 2017
May 2017
December 2016
May 2016
- Question 1: Conceptual Runoff Models, PVC Pipe Flow and Cross-Connections
- Question 2: The Hydrologic Cycle, Stormwater Culverts and the Rational Formula
- Question 3: Snow Melt in Detention Design, Wastewater Collection Components, and the IDF Curve
- Question 4: Watershed Abstractions, Hydrograph Shape and a Pump Impeller Diameter Change
- Question 5: Hardy-Cross Pipe Network, Sanitary Sewer Types and the Manning Formula
- Question 6: Runoff Control Systems, Stormwater Ponds and Flood-Frequency Confidence Bands
- Question 7: Trapezoidal Channel Uniform Flow, Specific Energy Over a Bump, and the Shields Criterion
December 2015
- Question 1: Snowmelt in the Hydrologic Equation, Wastewater Collection Components, and Storage Vault Function
- Question 2: Conceptual Runoff Models, Corrugated Steel Pipe Hydraulics, and Distribution Valves
- Question 3: Hardy-Cross Pipe Network, Pump Types, and System Head Curves
- Question 4: Sanitary Sewer Design, Stormwater Runoff Control, and Flood-Risk Probability Curves
- Question 5: The Hydrologic Cycle, Trunk Storm Sewer Design, and the Storm Sewer Drop Structure
- Question 6: IDF Curves, the Rational Method, and Dry Pond Design
- Question 7: Open-Channel Uniform Flow, Gradually Varied Flow, and Manning's Equation
May 2015
- Question 1: Runoff Models, Closed-Pipe Hydraulics, and Pressure Relief Valves
- Question 2: Hydrologic Abstraction, Stormwater and Wastewater Collection Systems
- Question 3: Pipe Network Analysis, Head Concepts, and Pump System Curves
- Question 4: Sanitary Sewer Design, Runoff Control, and Flood Frequency
- Question 5: The Hydrologic Cycle and Stormwater Collection System Design
- Question 6: Stormwater Ponds and IDF-Based Peak Runoff Design
- Question 7: Open-Channel Flow, Specific Energy, and Streamflow Measurement
December 2014
- Question 1: Runoff Models, Closed-Pipe Hydraulics, and Distribution Reservoirs
- Question 2: Hydrologic Abstraction, Stormwater and Wastewater Collection Systems
- Question 3: Pipe Network Analysis, Water Hammer, and Pump System Curves
- Question 4: Sanitary Sewer Design, Runoff Control, and Flood Frequency Analysis
- Question 5: The Hydrologic Cycle, Stormwater Systems, and the Rational Method
- Question 6: Stormwater Ponds and IDF-Based Peak Runoff Design
- Question 7: Open-Channel Flow, Specific Energy, and Streamflow Analysis
May 2014
- Question 1: Closed-Pipe Hydraulics and Water Distribution Components
- Question 2: Hydrologic Cycle and Stormwater Collection System Design
- Question 3: Snowmelt, Wastewater Collection, and IDF-Curve Application
- Question 4: Hydrograph Analysis and Pump Impeller Affinity Laws
- Question 5: Pipe Network Analysis and Sanitary Sewer Design
- Question 6: Urban Drainage BMPs and Flood Frequency Analysis
- Question 7: Open-Channel Flow and Sediment Transport
December 2013
- Question 1: Conceptual Runoff Models, Pipe Flow in a Concrete Sewer and Elevated Reservoirs
- Question 2: Rural Hydrologic Cycle, Storm-Sewer Peaking Factor and Sewer Design Bases
- Question 3: Hydrologic Abstractions, Collection-System Components and an IDF-Curve Design Example
- Question 4: Stormwater Dry Ponds, Cold-Water Fishery Protection and a Centrifugal Pump Impeller Change
- Question 5: Hardy-Cross Pipe Network, Sanitary Sewer Self-Cleansing Velocity and the Harmon Peaking Formula
- Question 6: Stormwater BMP Detention Principle, On-/Off-Site Maintenance and Flood-Frequency Curves
- Question 7: Trapezoidal Channel Uniform Flow, Specific Energy Over a Bed Rise, and V-Notch Weir Calibration
May 2013
- Question 1: Sanitary Sewer Design, Off-Site Runoff Control and Flood-Frequency Analysis
- Question 2: Inflow/Infiltration Design Implications, Precipitation & Snow Melt, Collection System Components
- Question 3: The Natural Hydrologic Cycle
- Question 4: Closed-Pipe Hydraulics, High-Lift Pump Capacity and Runoff Models
- Question 5: Stage-Discharge, Trapezoidal Channel Flow and Specific Energy Over a Bed Rise
- Question 6: Urban Stormwater Wet Ponds and IDF-Based Rational Method Design
- Question 7: Pipe Network Analysis, the Hardy-Cross Method and Centrifugal Pump System Design