A site investigation was conducted to determine the suitability of the material from a borrow pit for a gravel road construction. A 174.33 mm (internal diameter) thin-walled sampling tube was pushed into the bottom of a trial pit and a 218.72 mm long undisturbed specimen, weighing 4802.9 g, was obtained. When dried in the oven, the specimen weighed 4382.99 g. The specific gravity of the soil grains was measured and found to be Gs = 2.66, Determine the following:

the total volume of the soil
the volume of the solids
the volume of water
the volume of voids
the volume of air
the total mass of the soil
the mass of the solids
the mass of water
find the void ratio,
water content,
degree of saturation,
bulk density
and dry density.
The order in which you determine these variables is up to you. You will be writing down your answers in the following 13 questions (one variable at a time).

Use units of Mg for masses and m for lengths.

You may take the density of water to be 1.0 Mg.m3

explain the calculation principle of hardy-cross method in pipe networks

Assuming a linear speed-density relationship. the mean free speed is observed to be 65 mph at near zero density and the corresponding jam density is 160 veh/mi. Assume that the average length of vehicles is 20 feet.

a) Write down the equations for speed-density and flow-density relationships

b) Calculate the speed and density corresponding to a flow of 1000 veh/hr

c) Calculate the average time headway and average space headway when the traffic flow is at maximum value

The following two claims are made by salesmen about newly invented 2-phase adiabatic compressors.

Salesman A: "It can compress steam with a quality of 0.2 from 50 kPa to saturated liquid at 1000 kPa."

Salesman B: "It can compress steam with a quality of 0.2 from 50 kPa to saturated liquid at 3000 kPa."

a. Show both claims on a T-?̂ (temperature vs. specific entropy) diagram.

b. Which claim or claims are possible?

c. Which claim or claims are impossible?

Occupancy data from a single loop detector was obtained from a one way street. The loop detector has a length of 6 feet and was observed to have six vehicles cross over it in a period of 30 seconds. The duration and the length of each vehicle are shown in the table below. Use the average vehicle length in your calculations. Estimate the values of q, k and u (flow, density and speed)

I want  ANOVA hand calculation and if possible output of any design analysis software and find the Normal Probability check of original data and residual, Model regression, Validity of models and Hypothesis testing of coefficient significant

NOTE: I need hand calculation

Thank you

how we can use "mass reduction" and "external prestressing" as a "methods to retrofit" against earthquake effects the existing buildings in Civil Eng?

what are two experimental considerations when running PXRD (powder X-ray diffraction) using a flat disk sample holder? And why is the scan time and 2theta range important parameters in the experiment?

As a geotechnical engineer, you have been asked to conduct experiments that are required to be used in strength and static calculations. If the ground class is not determined and the budget is considered to be unlimited, explain what experiments you choose and why.

Describe the criteria of Rankine and Coulomb migration, discuss the similarities and differences.

a) A thick steel plate of total area 840 cm² (both sides) is exposed to air near the ocean. After 1 year it was found to have lost 502 g in weight due to corrosion. What is the rate corrosion, or corrosion penetration rate CPR, for the material in this environment? Density of steel = 7.9 g/cm3                               [8 marks]

b) What type of corrosion is this? [2 marks]

c) Provide two strategies (there are more than two of course, but just choose two) for dealing with this type of corrosion [2 marks]

d Briefly summarise the pros and cons of each strategy as they might apply to a children’s playground at a seaside beach front [8 marks].

what do you expect to learn, based on theory, practice, design sowftware of bridge engineering (300 words)

In 2010, OSHA allowed the federal alternative work procedures to expire and redefined residential construction. Currently all workers must adhere to the standard. Do you agree with this? Take a position. In addition, what is different about residential construction vs. commercial construction - in your mind and in the regulations?