- When subcritical flow goes over a step down, does the kinetic energy increase, decrease or remain constant?

- You have subcritical flow going through a channel constriction that does not influence upstream water levels. If the critical depth is observed in the constriction, the minimum specific discharge is passing through the constriction

True or false?

- Subcritical flow encounters a step up transition that is smaller than the maximum step height. Does the specific energy:

- In supercritical flow that does not encounter a hydraulic structure, the upstream water is influenced by downstream conditions.

True or False?

Calculate the monthly average evaporation to occur from the surface of the water in open July, taking into account the following data for a lake,
£ using the Penman method.£
Latitude: 40.5 N.
Monthly Avg. Temperature: 21.3 C.
Real daylight hours: 9.8 hours
.2m wind speed: 145 km / h.
Albedo: 7%.
Relative Humidity: 55%

no sir it is homework I have to solve it by penman rules

#1 You are overseeing the plans for construction of a new highway. Someone proposes using cheaper, substandard materials to control/treat water flowing off the construction site. The water on the construction site contains measureable concentrations of sediments, oils from vehicles, heavy metals, and components of asphalt. A recreational lake is nearby and downgradient from the construction site. This is a substantial slope (10% grade) across the site.

Parts pertaining to #1:

a) LIST the three pillars of sustainability and EXPLAIN how this issue connects to each pillar.

b) Assuming you are a licensed engineer, what is your ethical obligation to the public AND other licensed engineers working on this job? [Your response should cover ethical obligations to both parties.]

Will like right away!!

3)Descriptive calls are given considerable weight when there are ambiguities.

True

False

4)

If a naturally created island is discovered in the middle of a navigable river in Texas, who can have the rights of ownership to this land?

1)List three of the seven exceptions to the plat requirements.

Design a square concrete column footing to support a 400-mm x 400-mm reinforced concrete column. The center of the column and footing must coincide. Loads: ???=350 ??, ???=480 ??, ???=100 ??−?, ???=130 ??−? Column Design Criteria: ??′=28 ???, ??=400??? Footing Design Criteria: ??′=28 ???, ??=400???, ??=180 ???,??=1.70 ?, ??=16 ??/?3,??=24 ??/?3, ??=25 ??, assume a thickness of the footing of 700 mm.

Design a square concrete column footing to support a 500-mm x 500-mm reinforced concrete column. The center of the column and footing must coincide.
Loads: ???=350 ??, ???=480 ??, ???=100 ??−?, ???=130 ??−?
Column Design Criteria: ??′=28 ???, ??=400???
Footing Design Criteria: ??′=28 ???, ??=400???, ??=175 ???,??=1.50 ?, ??=16 ??/?3,??=24 ??/?3, ??=20 ??, assume a thickness of the footing of 500 mm.

An ISA 90X60X8mm of steel of grade Fe410 is connected to a 12mm gusset plate and is used as a tension member design the weld if weld is to be provided on upper and lower edges of connected legs

An activated sludge system with recycle (CMFR) uses to treat primary effluent after sedimentation.Use the appropriate kinetic coefficients for the influent water characteristics to CMFR. Influent Characteristics: Flow = 1000 m3/day; bsCOD= 192 g/m3; nbVSS= 30 g/m3; inert inorganics= 10 g/m3

Aeration Tank Data: MLVSS = 2500; g/m3; SRT or θc = 6-day

Calculate:

1.- Fraction of Biomass in MLVSS

2.- Observed yield

a) gVSS/ g bs COD

b) gTSS/g bs COD

3.- Oxygen Requirement Kg/day

Compute the elevation of TP1 after correcting for “curvature and refraction” given:

“BM A” elevation = 595.00’ (NAVD 88)

BS (plus sight) rod reading on “BM A” = 7.00’ at a horizontal distance of 1,900'

FS (minus sight) rod reading on “TP1” = 1.00’ at a horizontal distance of 1,950'

Please put the final answer in feet.

For a small scale hydraulic power system, the elevation difference between the reservoir water surface and the pond water surface downstream of the reservoir is 20.35. The velocity of the water exhausting into the pond is 7 m/s, and the discharge through the system is 4 m³/s. The head loss due to friction in the penstock (inlet pipe to turbine, under very high pressure) is negligible. Find the power produced by the turbine in kilowatts. Assume specific weight of water is 9810 N/m³ and g = 9.81 m/s²

1. The annual precipitation measurements (Pi in cm) for M city, over a 20year period are shown in the following table. Determine the mean, standard deviation, and skew coefficient for this series.

2. Determine the mean, standard deviation, and skew coefficient for the log values of annual rainfall for M City, given in Problem 1. Also determine the mean precipitation (in cm) of the log-transformed data.

Please clarify each step of the solution.

1. The annual precipitation measurements (Pi in cm) for M city, over a 20year period are shown in the following table. Determine the mean, standard deviation, and skew coefficient for this series.

2. Annual precipitation measurements (Pi in cm) for M City, were given in Problem 1. Determine the magnitude of the 10-year precipitation depth if the data fit:

1. the normal distribution.
2. the Gumbel distribution.

How many times was the P10 (normal) exceeded in the 20-year annual precipitation record given in Problem 1 ?

Please clarify each step of the solution

A 1200 mm deep by 750 mm wide post-tensioned simply supported beam is shown below. The beam spans 12.0 m and is subject to a superimposed dead load of 50 kN/m and a live load of 35 kN/m. Both the superimposed dead load and live load are applied after transfer (after stressing has taken place). The tendon is located at the mid-height of the beam at each end, and its centreline sits 50 mm from the base at midspan. The concrete strength at transfer is 22 MPa, and at maturity is 40 MPa. Assume E_c = 32800 MPa, γ_c = 24 kN/m³ and ignore any prestress losses.

a)            If P_i = 2700 kN, assess the adequacy of the beam at transfer. In addition, assuming P_i cannot be changed, briefly describe three methods that could be used to ensure the transfer stresses are within code limits.

Horizontal Curve Problem- A field measurement of an existing two-lane curved roadway (horizontal curve) indicates that the chord length (C) for the inside radius of the road (roadway edge line) is 312.5 ft and the distance from the middle of the chord to the roadway edge line 25 feet. The road has 28 feet of travel way, 14 feet for each lane. Respond to the next three questions about this horizontal curve.

1. Radius for the horizontal curve to the center of the road most nearly is: A. 515ft B. 494ft. C. 501ft. D. 508ft.

2. The sight distance fir the roadway is most nearly: A. 362.5ft. B.355.8ft. C. 365.0ft. D. 360.5ft.

3. Safe operating speed for this section of the Road most nearly is: A.50MPH. B.35MPH. C.40MPH. D.45MPH