Use the conservation of linear momentum principle to derive one of the following:
a. The head loss formula for a hydraulic jump
b. The minor loss coefficient for a sudden pipe contraction
In: Civil Engineering
Briefly describe what you know about Ozone depletion and Global warming.and Name the major risks caused by a SOx on humans? -What air pollution control device is better in removing SO4? Draw the device and label all the important components.
In: Civil Engineering
1. How does the lateral movement of the roller support impact the measured vertical deformations?
2. Discuss the advantage of considering the extra available strength due to the plastic beam theory when designing structures.
In: Civil Engineering
Determine the removal efficiency of a “standard” cyclone that is being designed to remove 10 µm diameter particles with a density of 800 kg/m3 , using the following design specifications: • Cyclone barrel diameter = 0.50 m • Gas flow rate = 4.0 m3 /sec • Gas temperature = 25°C
Ans. 94.4%
In: Civil Engineering
1. Explain the formation of ettringite during a sulfate attack to concrete.
2. What is the alkali-aggregate reaction?
In: Civil Engineering
Please give a good explanation and a comprehensive answer.
Where in the asphalt layer, would you expect to find a tension crack forming(initiating) and why?
In: Civil Engineering
Project title: Connecting smart-high visibility clothing to construction site's network.
Need 6 summarize with the reference.
In: Civil Engineering
Calculate the head loss if the water is discharged through a 2,000 ft 8” steel pipe and a 1,500 ft 6” cast iron pipe at the discharge rate of 1.63 cfs;
The 8 inch pipe has a square-edged entrance; a swing check valve; fully opened gate valve; contraction (20 degree);
The 6 inch pipe has 6 - 45 deg. elbows; 2 - 90 deg. bends; 1 r=1 ft; 1 r=2ft.
Use Hazen-Williams equation to calculate the head loss of the straight pipes - Ch= 110 for steel and 120 for cast iron. Also list the minor loss coefficient
In: Civil Engineering
Philosophical/Engineer Question
Q1: Is discipline a responsibility?
Q2: Are consumers rational people
Q3: Is safety determined by the amount of allowable risk?
Q4: Is the NSPE Code of Ethics written in order of importance?
Q5:How is the code of ethics established for engineers?
In: Civil Engineering
The undrained strength of a clay is 1.2 kips/ft2 , the water table in 4 ft below the ground surface, the total unit weight of the clay is 118 lb/ft3 , and a round shallow foundations with a diameter of 4.25 ft is placed at a depth of 10 ft supports a column load. a. Use a factor of safety of 2.8 and compute the safe column load on the foundation. b. An excavation near the drilled shaft removes the soil down to the water table. What is the effect on the factor of safety? (Hint consider what the physical meaning of the components in the Hansen equation. Which component is impacted by the excavation?)
In: Civil Engineering
a. Explain the factors based on which the nominal cover for the reinforcement is decided.
b. What the value of k indicates in the calculation for area of steel and what if the value is k=0.268 in the design of slab.
c. What provisions will you implement if the slab becomes unsafe in the check for shear
*according to Extracts of BS8110
In: Civil Engineering
Given the following vertical curve data: PVI at 19+ 00,L= 500 ft,g1= +2.5%,g2= -1%, and elevation of PVI = 723.86 ft.Compute the elevationsof the curve summit (i.e. high point)andfullstations.Assume that all symbols have their usual meaning.
In: Civil Engineering
Advantages of satellite remote sensing over other methods of data collection?
In: Civil Engineering
Identify proper use cases in Systems Engineering for forward and backward chaining. Describe the application and anticipated professional impact.
In: Civil Engineering
Ex if std no: 1abcde, 161667 (a=6, b=1, c=6, d=6,
e=7)
In my case std 174702
Q1) Design a concrete mixture proportions which will be used for
offshore concrete platform. Norway is a world leader on offshore
concrete platforms with 1a of the world’s 30 larger offshore
concrete structures located on the Norwegian continental shelf. The
first of these platforms where the Ekofisk Tank installed in 1974
and the last was Troll gravity based structure installed in 1996.
The Sakhalin project is located in a harsh and artic environment
where concrete structures have proven excellent characteristics
with a minimum of maintenance. 80 mm slump value is required for
the Sakhalin project. 28-days concrete characteristic strength is
2b MPa. It is required that no more than 1 test result in 100 will
fall below the specified strength. The fine aggregate has a
fineness modulus of 2.60 and Zone 3. For Coarse Aggregate
(Uncrushed): SSD Bulk Specific Gravity: 2.65, Absorption Capacity:
2.b %, Total Moisture: 1.c % and Dry Rodded Unit Weight: 1345 kg/m3. For
Fine Aggregate (Uncrushed): SSD Bulk Specific Gravity: 2.70, Total
Moisture: 3.d % and Free Moisture: 2 %. Cement: Portland Composite
Cement, Specific Gravity: 2.97. For 0.e5 m3 of concrete, binder
amount is calculated as 120 kg (Use ACI Method of Mix
Design)
In: Civil Engineering