04-BS-7

Questions by sitting

December 2019

1. Question 1: Absolute Pressure in a Pipe from a Multi-Fluid Manometer
2. Question 2: Hot-Air Balloon — Temperature for Neutral Buoyancy
3. Question 3: Concrete Canal Wall — Middle-Third Stability Check
4. Question 4: Electrical Power to Pump Gasoline Between Gauges
5. Question 5: Centrifugal Pump and System Operating Point
6. Question 6: Thrust Developed by an Aircraft Propeller
7. Question 7: Pressure Drop in a Sloping Mine Ventilation Tunnel
8. Question 8: Flow Rate in a Gravity Water Supply Pipeline
9. Question 9: Boeing 747 — Lift Coefficient, Drag Coefficient and Thrust Power at Cruise
10. Question 10: Sliding Stability of Two L-Shaped Dams Under Uplift
11. Question 11: Air Pressure in a Submerged Cylinder — Two Filling Sequences
12. Question 12: Why a Vacuum Nozzle Must Be Held Closer Than a Blower Nozzle
13. Question 13: Why Turning Vanes Reduce Head Loss in a Duct Bend

December 2018

1. Question 1: Gravity Dam Stability — Middle-Third Rule
2. Question 2: Equilibrium Level in a Discharging Tank — Gasoline vs Lubricating Oil
3. Question 3: Archimedes' Crown — Purity by Weight of a Gold–Silver Alloy
4. Question 4: Hydraulic Jump — Momentum Force Balance and Flow Rate
5. Question 5: Hydraulic Jump — Head, Energy and Power Loss
6. Question 6: Trapezoidal Irrigation Canal — Elevation Drop from General Pipe-Flow Relations
7. Question 7: Jet Force on a Plate vs Static Nozzle Pressure Force
8. Question 8: Turbojet Engine — Inlet Area and Thrust
9. Question 9: Treadmill Incline to Simulate Outdoor Wind Resistance
10. Question 10: Sliding Stability of Two Triangular Dams
11. Question 11: Wide Shallow River Under Flood Conditions
12. Question 12: Aerodynamics of a Frisbee in Flight
13. Question 13: Self-Righting Stability of a Falling Playing Card

May 2018

1. Question 1: Multi-Fluid Manometer on a Water Pipe
2. Question 2: Crosby Gauge Tester — Percent Error
3. Question 3: Shower Curtain Deflection Angle
4. Question 4: Submersible Fountain Pump Power
5. Question 5: Beach Wave — Hydraulic Jump Power Dissipation
6. Question 6: Pressure Drop in a Corrugated Air-Exchanger Pipe
7. Question 7: Jet Engine Forward and Reverse Thrust
8. Question 8: Terminal Velocity of a Table Tennis Ball
9. Question 9: Wind and Gravity Loads on a Power-Line Conductor
10. Question 10: Stability of a Floating Square Bar
11. Question 11: The Laminar-to-Turbulent Friction-Factor Jump on the Moody Diagram
12. Question 12: Stable Falling Orientation of a Hemisphere
13. Question 13: Magnus Effect — Why Topspin Makes a Table Tennis Ball Dip

December 2017

1. Question 1: Two-Fluid Manometer Between Pipes A and B
2. Question 2: Venturi Tube Measuring Gasoline Flow
3. Question 3: Ideal Flow Velocity and Pressure Around a Chimney
4. Question 4: Electrical Power for a Gasoline Pump
5. Question 5: Thrust on a Wind Turbine
6. Question 6: Island Bend Dam — Spillway Discharge and Gate Force
7. Question 7: Pipe Diameter Selection Using the Moody Diagram
8. Question 8: Car Drag Coefficient, Power, and Fuel Consumption
9. Question 9: Wind Loading on a Multi-Flue Chimney
10. Question 10: Duct Bend Head Loss — Plain vs. Vaned
11. Question 11: Capillary Rise Between Rods of Two Sizes
12. Question 12: Steam Condenser — Small Tubes vs. Large Tubes
13. Question 13: Jet Force and Energy Transfer — Flat vs. Curved Plate

May 2017

1. Question 1: Capillary Rise in a Rectangular Channel
2. Question 2: Reservoir Flip-Gate — Open or Remain Closed?
3. Question 3: Helium Balloon — Mass and Altitude Volume Change
4. Question 4: VDI Orifice Meter — Differential Pressure Reading
5. Question 5: Hydraulic Jump — Flow Rate from Depths
6. Question 6: Hydraulic Jump — Head, Energy and Power Loss
7. Question 7: Head Loss in a Rectangular Ventilation Duct
8. Question 8: CANDU Fuel Bundle — Coolant Pressure Drop
9. Question 9: Falling-Sphere Viscometer — Oil Viscosity
10. Question 10: Significance of the Laminar Sublayer
11. Question 11: Floating Square Bar — Stable Orientation
12. Question 12: Duct Bend Head Loss — Orientation of a Rectangular Bend
13. Question 13: Barge Passing Over an Aqueduct — Change in Pillar Load

December 2016

1. Question 1: Neutral-Buoyancy Temperature of a Hot-Air Balloon
2. Question 2: Middle-Third Stability Check on a Concrete Gravity Dam
3. Question 3: Velocity Variation Around a Cylinder from Streamline Spacing
4. Question 4: Wind-Induced Stagnation and Side Pressure on a Chimney
5. Question 5: Propeller Thrust via Actuator-Disk (Momentum) Theory
6. Question 6: Wind-Induced Suction Ventilating an Outhouse Pit
7. Question 7: Head Loss in an Outhouse Vent Pipe
8. Question 8: Elevation Drop for Uniform Flow in a Trapezoidal Irrigation Canal
9. Question 9: Settling Velocity of Magnetite Slurry Particles (Stokes' Law)
10. Question 10: Velocity and Flow-Rate Response of a Wide River in Flood
11. Question 11: Stability of a Floating Square Bar — Horizontal vs Vertical
12. Question 12: Draining-Time Comparison — Upright vs Inverted Conical Tanks
13. Question 13: Relative Sinking Depth in Light Oil vs Quicksand

May 2016

1. Question 1: Absolute Pressure in a Pipe from a Multi-Fluid Manometer
2. Question 2: Depth to the Water Table from an Air-Purge Borehole Test
3. Question 3: Middle-Third (No-Tension) Check on a Concrete Canal Wall
4. Question 4: Minimum Wind Velocity to Lift a Flat Insulation Panel
5. Question 5: Total Head Loss from a Reservoir-Fed Pipe Test
6. Question 6: Sizing a Pipeline Diameter via the Colebrook/Moody Friction Relation
7. Question 7: Jet Force vs. Static Pressure Force on a Nozzle Plate
8. Question 8: Centrifugal Pump – System Operating Point
9. Question 9: Lift, Drag, and Thrust Power of a Cruising Boeing 747
10. Question 10: Change in Compressive Force on Aqueduct Pillars as a Barge Passes
11. Question 11: Which Triangular Dam Is More Likely to Slide?
12. Question 12: Flow Net and Streamlines Through a Conical Converging Nozzle
13. Question 13: Streamline Patterns for Tank Inflow/Outflow and Sharp-Edged Orifice Jets

December 2015

1. Question 1: Capillary Rise Between Touching Glass Rods
2. Question 2: Percent Error in a Crosby Gauge Tester
3. Question 3: Stagnation and Side Pressure on a Cylindrical Chimney
4. Question 4: Island Bend Dam — Spillway Discharge and Gate Force
5. Question 5: Viscosity and Tank Equilibrium Level — Gasoline vs. Lubricating Oil
6. Question 6: Ideal-Flow Velocity and Flow Rate Through a Sharp-Edged Nozzle
7. Question 7: Turbojet Thrust and Duct Areas
8. Question 8: Rate of Rise of a Helium Meteorological Balloon
9. Question 9: Pressure Drop in a Corrugated Aluminum Air Duct
10. Question 10: HGL and EGL Profiles Along the Island Bend Dam Spillway
11. Question 11: Why the Moody Friction Factor Jumps at the Laminar–Turbulent Transition
12. Question 12: Sliding Resistance of Two L-Shaped Gravity Dams
13. Question 13: Shape of a Falling Raindrop — Large vs. Small

May 2015

1. Question 1: Three-Fluid Differential Manometer
2. Question 2: Force to Lift a Submerged Concrete-Block Gate
3. Question 3: Horizontal Force on the Jounama Dam Radial Gate Pivots
4. Question 4: Electrical Power for a Gasoline Transfer Pump
5. Question 5: Pitot-Static Tube Air-Velocity Measurement
6. Question 6: Thrust on a Wind Turbine (Actuator-Disk Theory)
7. Question 7: Flow Rate in a Gravity-Fed Concrete Pipeline
8. Question 8: Head Loss in an Annular Duct
9. Question 9: Maximum Sustainable Cycling Speed from Drag Data
10. Question 10: Effect of Pipe-Wall Roughness on the Turbulent Velocity Profile
11. Question 11: Fastest-Draining Orientation for a Cylindrical Drum
12. Question 12: Force and Energy Transfer — Flat vs. Curved Plate under a Jet
13. Question 13: Why a Shower Curtain Blows Inward

December 2014

1. Question 1: Hydrostatic Force on a Hemispherical Wall Projection
2. Question 2: Gravity Dam Stability (Middle-Third Rule)
3. Question 3: Power for a Submersible Garden Fountain
4. Question 4: Radial Inflow Velocity to a Tank Drain
5. Question 5: Jet on a Moving Curved Plate (180° Turn)
6. Question 6: Stagnation Pressure Limit for a Motorcyclist
7. Question 7: Pressure Drop in a Sloping Mine Ventilation Tunnel
8. Question 8: Elevation Drop for a Trapezoidal Irrigation Canal
9. Question 9: Oil Viscosity from a Sphere's Terminal Velocity
10. Question 10: Stable Floating Orientation of a Square Bar
11. Question 11: Compressive Force on Aqueduct Pillars as a Barge Passes
12. Question 12: High-Lift Aircraft Wing Configurations
13. Question 13: Drafting: Cyclists vs. Swimmers

May 2014

1. Question 1: Capillary Rise in a Flattened Tube
2. Question 2: Manometer Fluid Identification
3. Question 3: River Flow Accumulation and Level Rise
4. Question 4: Head Loss in a Reservoir-Fed Pipe
5. Question 5: Temperature Rise in a Closed Pump Circuit
6. Question 6: Nozzle Jet Velocity and Discharge
7. Question 7: Jet Force on a Plate: Dynamic vs. Static
8. Question 8: Drain-Cleaning Nozzle Thrust
9. Question 9: Pipe Sizing from the Moody Chart
10. Question 10: Flow Net for a Converging Nozzle
11. Question 11: Orifice Meter, Manometer, and Grade Lines
12. Question 12: Drafting: Cyclists vs. Swimmers
13. Question 13: Shape of a Falling Raindrop

December 2013

1. Question 1: Capillary Rise Between Closely Packed Vertical Rods
2. Question 2: Viscous Heating in the Crankshaft Main Bearings
3. Question 3: Sliding Friction Required to Hold a Concrete Dam
4. Question 4: Head Loss in a Long Water Supply Pipeline
5. Question 5: Wind-Induced Ventilation of an Outhouse Pit
6. Question 6: Power Required for a Submersible Garden Fountain
7. Question 7: Thrust and Flow Areas of a Turbojet Engine
8. Question 8: Pipe Diameter Selection from the Moody Chart
9. Question 9: Settling Velocity of Magnetite in a Separation Slurry
10. Question 10: Spillway Flow — Streamlines, EGL and HGL
11. Question 11: Stable Floating Orientation of a Square Timber
12. Question 12: Flood Velocity and Flow Rate in a Wide Shallow River
13. Question 13: Flow Characteristics — Sink/Jet Streamlines and Orifice Contraction

May 2013

1. Question 1: Compound Manometer — Absolute Pressure in a Pipe
2. Question 2: Hot Air Balloon — Neutral Buoyancy Temperature
3. Question 3: Hinged Gate — Open or Remain Closed?
4. Question 4: Radial Flow to a Drain Hole
5. Question 5: Ideal Flow Around a Cylinder — Chimney in Wind
6. Question 6: Minimum Wind Velocity to Lift an Insulation Panel
7. Question 7: Propeller Thrust
8. Question 8: Pipe Friction Between Two Reservoirs (Moody Chart)
9. Question 9: Rate of Rise of a Hydrogen Balloon (Drag Chart)
10. Question 10: Sinking in Light Oil vs. Quicksand
11. Question 11: Which L-Shaped Dam Slides?
12. Question 12: Barge Crossing an Aqueduct
13. Question 13: Shape of a Falling Raindrop

Undated paper

1. Question 1: Pressure in Pipe A from a Two-Fluid Differential Manometer
2. Question 2: Pitot-Static Tube in an Air Duct
3. Question 3: Counterweight Mass for a Hinged Dam Gate
4. Question 4: Minimum Wind Speed to Lift an Insulation Panel
5. Question 5: Ideal-Flow Orifice Jet from a Pressurized Pipe
6. Question 6: Force, Power and Efficiency of a Jet on a Moving Curved Plate
7. Question 7: Efficiency of a Submersible Sump Pump
8. Question 8: Friction Head Loss in a Flexible Corrugated Discharge Pipe
9. Question 9: Pressure Drop Along a CANDU Fuel Bundle Annulus
10. Question 10: Capillary Rise Between Two Square-Packed Rod Arrays
11. Question 11: Shape of a Falling Raindrop
12. Question 12: Sinking Depth — Light Oil versus Quicksand
13. Question 13: High-Lift Wing Configurations