Trying to study this question on stress transformations and mohr's circle and am having some difficulty

The state of stress at a point is defined by sigma x = -30 MPa, sigma y = 20 MPa, and tau xy = 15 MPa. 1) Draw the Mohr’s circle and label the key features (e.g., sigma 1, sigma 2, tau max, theta p1, and theta p2). 2) Draw the element showing the principal planes, principal stresses and principal directions with proper labels. 3) Determine the normal and shear stresses on a plane inclined at alpha (degrees) = 30 to horizontal turned anticlockwise. Show the procedure in the Mohr’s circle, with proper labels.

Explain why hydraulic fill is a poor way to place fill.

SURVEY LAW

Part 1: A survey of a lot for the purpose of obtaining a mortgage would be considered a/an:

A) Forensic survey

B) Litigation survey

C) Utility survey

D) Original survey

Part 2: Why? Give another example.

Broad crested weir lab report introduction and background.

A 12-inch diameter cast iron pipe conveys 1500 gpm of liquid at an industrial facility. At one point in the pipe, call it point A, a gage indicates that the pressure is 45 psi. Another point in the pipe, call it point B, is 175 ft downstream of point A (measured along the pipe).

(a) Determine the head loss (ft) between points A and B if the liquid is: (i) SAE 30 oil at 60°F; (ii) water at 60°F.

(b) Determine the pressure at point B, for both liquids, in the following cases: (i) point A is 18 ft higher than point B, (ii) point A is at the same elevation as point B, (iii) point A is 18 ft lower than point B.

Using the compressive stress-strain data provided in fig below and the Australian standard AS 1012.17 test method for determining the modulus of elasticity of concrete, determine the modulus of elasticity of concrete for the following two scenarios: a. concrete requiring complete hydration f the Portland cement and minimal porosity b. Concrete that will simulate equivalent workability to the concrete mix listed in bullet point (a) but with HWR added to the mix to maximize the plasticising effect

Size the hot water tank (i.e. determine its rating, storage capacity, and dimensions) for a duplex that has 2 families, with 3 adult occupants each. Assume the typical morning routine includes taking a shower, face/hand washing, tooth bushing, food preparation, and automatic dishwashing.

Design a space within a building (could be one room) indicating the interior thermal
mass and construction. The design should illustrate the best location for thermal mass
and window placement in order to improve indoor comfort and building's thermal
performance.

Topic: Construction - Soil

1.) Create a 1-2 pages minimum technical report about the "Index Properties of Soils". Your report should include types and condition of soil, and provide their structural properties, compressibility, shear strength and compactness (relative density) characteristics.  

2.) Provide technical references from at least one source to support your points.

Explain with appropriate examples , how selection of construction machineries and equipment effect the construction project planning ?

(write by Microsoft Word )

Which of the following are the shortcomings of a code of ethics formulated by “professional engineering society”? (1) These codes are not formulated with sincere scholarship or expertise and are often a hostage to economic interests. (2) Most practicing engineers do not belong to any professional engineering society, so the codes cannot properly reach out to them. (3) Such codes, at best represent the highest ethical common denominator among those to who it applies, therefore, it may include provisions which may be ethically questionable (4) These codes are not exhaustive – and there are matters of ethical importance that may go unnoticed

(a) 1 and 2

(b) 1, 2, 3 and 4

(c) 2, 3 and 4

(d) 2 and 3

Using Mohr's circle explain why for lateral earth pressure in sand against a retaining wall, the active thrust behind the retaining wall is always less than the passive thrust?

Both isotropically consolidated undrained (CIU) triaxial test and an isotropically consolidated drained (CID) triaxial test are conducted on a loose sand. Without calculation which test will have a higher deviator stress at failure?

choose one type of space truss structure for a 100m span hangar and a 30m span gas station, respectively, and explain the reason briefly