Explain how changes in the politics, economics, social factors
, and spread of violence affected the situation of blacks in the New South.
In: Civil Engineering
Breyer 4.32. Determine the ASD reference and adjusted design values for the following members and loading conditions. All members are Select Structural Southern Pine and are fully braced to prevent lateral-torsional buckling. Bending occurs about the strong axis.
Roof joists are 2x6 at 24 in. o.c. which directly
support the roof sheathing. Loads are (D + S)
Floor beams are 4 x10 at 4 ft o.c. Loads are (D +
0.75(L + 0.6W)).
In: Civil Engineering
Design a RC wall of 4.6m height to support a factored load of 650 KN/m and factored moment of 30 KNm at right angles to the length of wall. The distance between cross wall is 4m. Sketch the reinforcement details.
In: Civil Engineering
Let's say you bought a plywood 2.5 m wide and 2 m long and
placed it on the roof of your car.
The boundary layer formed when driving the car towards the house is
laminar along the plate and the air flow of the plate
It is assumed that it is aligned in parallel. The boundary layer
thickness at the end of the plate (escape edge) is 12.5 mm
by;
a) Local speed at the point of the plate (x, y) = (0.5 m, 2.5 mm),
u
b) Local shear stress of the plate at the point (x, y) = (0,5 m,
2,5 mm), τx (Pa)
c) Find the total drag force on the plate, D (ρ air = 1.2 kg / m3,
ν = 1.510-5 m2 / s).
In: Civil Engineering
Explain why a high-carbon steel would not be suitable for reinforcement for concrete.
Suggest why lightweight premixed gypsum plasters have become very popular in recent years.
Why mortar used for clay bricks should not be stronger than necessary? Explain
List: Granite, Limestone, Sandstone, Travertine, and Marble according to their acid resistance (from best to worst).
.In order to design a timber sturcture, what kind of stress values do we need to know? Name 5 of them.
Is bleeding of fresh concrete a kind of segregation? Why?
What is the aim of aggregate sieve analysis test?
Explain underwater concreting from start to finish briefly.
Why alkali-silica reactions are harmful for concrete?
Suppose that you have “OPC, Rapid Hardening PC, High Alumina Cement, White PC, Portland Blast Furnace Slag Cement” at your construction site. Which type (only one) of these would you prefer to use for the conditions given below? (5%) a. Concreting very close to Golden Sand Beach, Karpaz Peninsula, Cyprus: b. Reinforced-concrete column: c. Concreting in Cyprus at an air temperature above 35 degrees Celcius: d. Reinforced concrete water tank construction: e. Reinforced-concrete slab at an air temperature of 2 degrees Celcius:
Put “T” for true and “F” for false statements below. (5%) a. Plaster of Paris is obtained by calcination of gypsum rock at 190 degrees Celsius. b. Slaking of lime is obtained to remove air and water completely from limestone. c. Mixture of uniform size aggregates causes friction at many points. d. Workability of fresh concrete can be measured indirectly by slump test. e. Sea water attack is an internal factor affecting durability of concrete
In: Civil Engineering
You are asked to build a new hospital: This will be a
children hospital. And It will be a digital hospital, which will
use all technological facilities. This assignment will be prepared
in 3 parts.
a) FIRST PART: Start with the architectural structure of the
hospital. Using your creativity, build a well-designed hospital for
children with colors, interior and exterior. Do not forget to draft
the architectural structure you designed for homework.
(Information: This section will be at least “3” pages. The first
two pages will be used to discribe the design. The third page will
be a draft image of hospital)
b) SECOND PART: Remember all the topics you learned in this lesson.
Plan the technological applications that should be in the digital
hospital you will build using this knowledges.( Information: This
section will be at least “3” pages.)
c) THIRD PART: Using your creativity and modern technology, plan a
communication method for pediatric patients who can be used in this
hospital and also after discharge. ( Information: This section will
be at least “1” page.)
In: Civil Engineering
what are the Mechanical treatment, biological treatment and Physico-chemical treatment for Municipal waste the Sultanate of Oman. and what are the economic, environmental and social impact of these treatments.
In: Civil Engineering
3. An oil well contains water at the bottom, oil floating on it,
and air above the oil. You performed
two time-of-arrival measurements with an instrument that measures
the depth of the well using
a light beam. The first reading on the instrument is t1= 1.33us and
the second one is
t2= 1.29 us taken after a certain amount of oil was pumped
out.
Calculate the change in the oil level considering the oil
refractive index 1.46.
In: Civil Engineering
Design a solid waste landfill that will maximize the amount of methane gas produced. In depth explanation of parts please!
In: Civil Engineering
1a) Engineering is not gender based. discuss(two pages)
b. fewer females in engineering is a problem. discuss
(two pages)
In: Civil Engineering
State whether the followings are True or False? (1) The angle of internal friction can vary from 0 to 90˚ since it is an angle. (2) A degree of saturation of 40% implies that 40% of the total volume consists of water. (3) Clays can have both cohesion and angle of internal friction. (4) In the triaxial test the horizontal plane is the major principal plane. (5) Piping (failure due high exit hydraulic gradient downstream) starts upstream and then progress to downstream face of a concrete dam. (6) It is safe to say that: in general natural soils in the field have larger permeability in the horizontal direction than the vertical direction. (7) Due to consolidation ∆? ?????????,?ℎ?? ? ?????????. (8) Consolidation is process of reducing voids by removing water and air if present. (9) In seepage in two dimensional impervious boundaries are equipotential lines. (10) Lowering the ground water table will increase the shear strength of the soil. (11) Due to consolidation the effective stress will increase. (12) Increasing the water pressure head at both upstream and downstream by 1 m will reduce piping.
In: Civil Engineering
The state government of Perak has recently announced the
building of a suspension bridge between Pulau Pangkor and
Peninsular Malaysia. The construction cost of the bridge is
estimated at RM100 million and this 4-lane bridge will take
approximately 3 years to complete. This infrastructure project is
expected to encounter many technical challenges and require the
involvement of various parties, particularly engineers of different
disciplines and expertise. Predict engineering-related ethical
issues that may possibly occur during the construction of the
suspension bridge. Discuss on the root causes of each ethical issue
you have identified. Finally, propose the efforts that can be duly
taken by a professional engineer to prevent the ethical issues you
have mentioned.
(20 markah/marks)
In: Civil Engineering
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In: Civil Engineering
In: Civil Engineering