A rectangular cross section beam (A) made of steel
constructed in an industrial building
between two columns which are “X” m apart. The beam is acting as a
support for one end of a pair of crane wheel (B). The distance b/w
wheels are “Y” m. The crane is used to lift max. of Z tonnes of
load which is having hook at the centre of crane. Draw shear force
and B.M of all types of beam
diagram of the beam.
Case i) If the crane wheels are positioned at equal distances from
centre of the beam.
Case ii) If one of the crane wheels is exactly at the centre.
Case iii) If one of the crane wheels comes exactly over a
column.
Also find the max. bending stresses in the beam for the first case
considering the depth (d) as twice the width of the beam.
X =6m,Y =1m ,Z=15 tonnes, Depth (d)=500mm
In: Civil Engineering
Please provide step be step solution
At a depth of 7km in the ocean,the pressure is 71.6Mpa assume a specific weight at the surface 10.03kn/m3 and average bulk modulus of elasticity of 2.34Gpa for that pressure range find (a) the change in specific volume between the surface and 7km (b) specific volume at 7km (c) the specific weight at 7km
In: Civil Engineering
In: Civil Engineering
A groundwater contains the following constituents to be treated by the lime-soda process to the minimum hardness possible has the following characteristics:
CO2 = 62.0 mg/L HCO3- = 250.0 mg/L as CaCO3
Ca2+ = 80.00 mg/L Cl- = 35 mg/L
Mg2+ = 36.6 mg/L SO42- = 96.0 mg/L
Na+ = 23.0 mg/L
The facility is to treat 50 x 106 L/day of water from this source using lime-soda ash to reduce the hardness.
a) Determine the total hardness, carbonate hardness, and non-carbonate hardness in mg/L as CaCO3.
b) Determine the lime and soda-ash dosages for softening (units of kg/day). Assume that the lime is 90 percent CaO by weight and the soda ash is pure sodium carbonate.
In: Civil Engineering
Explain why ‘Discovery’ is not carried out in criminal court cases.
In: Civil Engineering
Explain the differences between Hot Extrusion, Hot Forging, and Swaging in detail. Define the spring-back and mention how spring-back effects can be taken into consideration in bending process?
In: Civil Engineering
In: Civil Engineering
What does the word "slew" mean with regard to tower cranes? what are two different ways a tower crane can slew?
List dynamic factors that affect crane capacity.
(6 pts) List the seven rules for pumping concrete. What are the three rolling steps when paving asphalt? What is TMPH? What is the possible consequence for not considering TMPH?
Why are cycle times typically larger for a hoe than a shovel?
In: Civil Engineering
(4 pts) Define the term of “windrow” in grader operations. How can you minimize spillage from the blade?
(3 pts) In what soils is a vibratory pile driver/hammer effective?
(7 pts) List major factors that should be considered when laying out a construction site.
List 4 functions that required to process and produce suitable aggregate materials
In: Civil Engineering
The Wilson Wastewater Treatment Plant currently provides primary treatment for a flow rate of 2500 m3/day. The effluent from the primary tank has a soluble BOD5= 240 mg/L. You need to design an activated sludge treatment to update the plant. The secondary effluent standards to meet are 25.0 mg/L BOD5 total (suspended and soluble BOD) and 30 mg/L suspended solids. Use the following assumptions:
In: Civil Engineering
A cantilever of circular solid cross section is fixed at one end and carries a concentrated load P at the free end. The diameter at the free end is 200mm and increases uniformly to 400 mm at the fixed end over a length of 2m. At what distance from the free will the bending stresses in the cantilever be maximum? Also calculate the value of the maximum bending stress if the concentrated load P=300 KN
(a) 1.23 m, 12.32 MPa
(b) 1.5 m, 11.23 MPa
(c) 1.0 m, 11.32 MPa
(d) 1.33 m, 13.42 MPa
In: Civil Engineering
Block B is initially at rest. Then block A slides on the smooth surface to the right and collides with block B with a velocity vAvA. Consider three following collision cases where: i) elastic impact; ii ) perfectly plastic impact; iii ) e = 0.5. Just after the collision, rank these three cases where the relative velocitiy of B with respect to A is from largest to smallest magnitude.
In: Civil Engineering
- 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:
|
increase |
||
|
decrease |
||
|
remain the same |
- In supercritical flow that does not encounter a hydraulic structure, the upstream water is influenced by downstream conditions.
True or False?
In: Civil Engineering
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
In: Civil Engineering
#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!!
In: Civil Engineering