In: Civil Engineering
1. Which of the following statement is correct?
(a) The maximum stable slope in a coarse-grained soil (φ’=
39o, in the
absence of seepage, is half of 39o
(b) Taylor’s method can be used to assess short term slope
stability
(c) A saturated tension crack in the ground can stabilize
slope
(d) The maximum stable slope in a coarse-grained soil (φ’=
39o), in the presence of seepage, is 2 times of
39o
2. Which below situation provides the largest bearing capacity
for soil under a square footing (width 39m) placed 1m deep into the
ground?
(a) When the water table is at the ground surface
(b) When the water table is at the base of the footing
(c) When the water table is at (1+ 39) depth from the ground
surface
(d) When the water table is 39 above the ground surface
3. Which of the following statement is correct for a strip
foundation (Length 39 m) placed on the ground surface?
(a) Shape factor is 1.0+ 39
(b) Depth factor is < 1.0
(c) Shape factor is 1.2
(d) Shape factor is 1.0
In: Civil Engineering
What principles guided President Hoover’s response to the Great Depression, and how did this restrict his ability to help the American people?
Answer in 2 paragraphs.
In: Civil Engineering
A simply supported reinforced concrete beam with uniformly distributed load of 10 kN/m has a span of 6.0 metres. The beam cross-section is 225 mm breadth by 300 mm depth. Sketch and design the beam. Make necessary and realistic assumptions where applicable
In: Civil Engineering
The flow hydrograph ordinates observed in a basin with a
precipitation area of 500 km2 for a
3-hour showers are given in the table below. Assuming the base flow
is constant and 10
m3/h;
a) Calculate the total volume of flow as m3, which consists of
precipitation.
b) Calculate excess rainfall height and duration.
c) Determine the unit hydrograph which is equal to the
precipitation period of excess
rainfall.
(time is given a hour 10m3/h ) not false..
| Time (h) | 0 | 1 | 2 | 3 | 6 | 9 | 12 | 15 | 18 | 21 | 24 | 27 | 30 |
| Discharge (m3/s) | 10 | 10 | 10 | 110 | 180 | 150 | 130 | 112 | 96 | 82 | 70 | 60 | 52 |
| Rainfall (cm) | 0 | 1 | 3.5 | 4.5 | |||||||||
| Time (h) | 33 | 36 | 39 | 42 | 45 | 48 | 51 | 54 | 57 | 60 | 63 | 66 | |
| Discharge (m3/s) | 44 | 37 | 32 | 28 | 24 | 22 | 19 | 17 | 15 | 13 | 12 | 10 |
In: Civil Engineering
The distance and depth values measured in various slices in a
stream section and the measurement times and rotation numbers in a
muline with coefficients a = 0.15 and b= 0.08 are given
below.
a. Calculate the area, average velocity, and flow rate of each
slice as well as the total area and average velocity of the entire
cross section.
b. When measuring with another muline, it was measured as n = 22
when V = 1.94 m/s and n = 28 when V = 2.14 m/s. Determine
coefficients of muline and equation of velocity. In a measurement
made with this muline, calculate the flow rate according to making
35 rotations to the muline in 55 seconds.
| Slice No | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | |
| x (m) | 0 | 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 |
| h (m) | 0.0 | 0.30 | 0.60 | 0.70 | 0.65 | 0.40 | 0.25 | 0.15 | 0.0 |
| t (s) | 120 | 120 | 120 | 150 | 120 | 60 | 120 | 90 | |
| d | 20 | 26 | 32 | 45 | 28 | 17 | 20 | 12 | |
| --- | --- | 26 | 35 | 24 | --- | --- | --- |
In: Civil Engineering
A venturi flume is 1.3m wide at the entrance and 0.65m in the throat. Neglecting Hydraulic losses in the flume, calculate
The hump of 20cm is now installed at the throat so that a standing wave
In: Civil Engineering
write short conclusion and recommendation about HOW ENERGY CONSERVATION MEASURES CAN BE USED FOR LIGHTING CONTROLS
(please type the answer)
In: Civil Engineering
A stainless steel pencil case was ran over. There is a concern
that the case may have cracks that are not apparent to the naked
eye. How could someone check to see if the case is indeed cracked?
Describe how the test would be carried
out.
In: Civil Engineering
In: Civil Engineering
A nonslender square corner column is subjected to biaxial bending about its x and y axises. It suppoerts a factored load Pu= 300,000 lbs acting at eccentricities ex=ey= 7 in. Design the column size and reinforcement needed to resist the applied stresses. Given: f'c = 4000 psi fy = 60,000 psi. d'=2.5 in. Gross reinforcement percentage, px=0.03. Solve by using all three methods.
Please show all work and explain your steps, please.
In: Civil Engineering
Some advocate for small scale wind turbines, for instance, on buildings in urban areas etc. An advantage would be more distributed generation, close to usage (reduced transmission loss etc.) Comment on ‘micro-wind’ projects from an engineering perspective (scaling, physics etc.)
In: Civil Engineering
Design a nonslender column to support the following service loads and moments. The factored ultimate axial force P1= 100 kips, PD= 100 kips, ML= 2500 in.-kips, and MD= 1000in.- kips,. The eccentricity e to geometric centroid = 6 in. Given: f'c = 4000 psi fy = 60,000 psi.
Please show all work and explain your steps, please.
In: Civil Engineering
In: Civil Engineering
Discuss the Fundamental mechanisms for biodegradation of organic waste in a landfill.
In: Civil Engineering