In your city, the number of traffic accidents is relatively large, propose a step by step procedure to improve traffic safety

Mode of instability in rock mass is mostly controlled by the orientation and type of discontinuities. Thus, the selection of stabilization must be made based on the mode of instability. Answer the following question:
a) Name FOUR (4) basic mechanisms of rock slope instability.


b) List the THREE (3) main parameters that control the stability of a    jointed rock slope.

It is a common practice to install rock bolt together with cement grout. For an unstable slope face why such practice is highly recommended. What is the purpose of cement grout in rock bolt installation?

An area of 200 ha will be used to grow Alfafa (47 ha), Corn (70 ha) and Tomato (83 ha). The latitude of the area is 380 N. If the monthly temperatures for July, August and September are 21, 20, and 190 C, respectively, calculate the total consumptive use by Blaney-Criddle.          

At the end of the CD triaxial pressure experiment on a normal consolidated clay, the sample was defeated along a plane of 570. When another sample with the same properties was tested in the CU experiment, the pore pressure in the defeat was measured as 85 kPa. According to the cell pressures (63) 200 kPa in both experiments;
a) At the end of the A = CD experiment, find the effective internal friction angle and the difference in prime stress.
b) At the end of B = CU experiment, find the total angle of internal friction and angle of defeat plane.
c) In the C = CU test, find the shear strength in the plane of failure.

in table 1 the failure load obtained from the compressive strength  test at the laboratory are presented. sate whether those values are satisfactory according to TS EN206 1;2004 or not verify your results. concrete class C35. Determine also standard deviation and variance

Table 1 Failure load for 200 mm cubic samples

PLEASE CAN YOU SLOVE IT STEP BY STEP

- Which one is NOT the normal component of plain concrete?

Cement

Gravel

Sand

Air

Steel Rods

- What is the possible range of strength of concrete that you normally use in residential construction?

500-1000 psi

3000-5000 psi

30,000-50,000 psi

300,000-500,000 psi

- Which of the following statements about coarse aggregate in concrete is NOT true?

Aggregates should be relatively free from flat and elongated particles

Uniform size (same size) coarse aggregates are good for making concrete.

Well graded coarse aggregate is best for making concrete.

Heavily porous coarse aggregate is not good for making concrete.

Describe an intersection that you are familiar with and describe some characteristic using the terms described in this module on how improvements might be made?

- Which component occupies the most weight and volume in concrete?

Cement

Sand (Fine Aggregate)

Crushed Stones (Course Aggregate)

Water

- Low Heat Portland Cement is preferred in mass concrete work such as dams because...

Rapid hardening of concrete is required for such structures

They have higher ultimate strength

Development of cracks is minimized

- In the making of concrete,

Water reacts with stones to give the strength to concrete.

Stones and sand react with each other to give the strength to concrete.

Cement reacts with sand to give strength to concrete.

Cement reacts with stone to give strength to concrete.

Cement reacts with water to bind all the materials together that give strength to concrete.

An old building has been purchased for conversion into a historical restaurant. The local the local historical committee is a major stakeholder as they are showing interest and have become involved. A schedule contingency reserve has been suggested. Describe how you

would manage this risk using each of the strategies below:

a. Sharing
b. Mitigation

c. Avoidance

d. Acceptance

*a*s*d*f*g*AGGREGATE EXPERIMENTS

QUESTION 1: Grain distribution in aggregates; is calculated
a) By which experiment (with procedure and experiment instruments)?
b) How (explain calculations, show on the table)?

*****-*-*-*-*-*-*-CONCRETE MIX DESIGN AND PRODUCTION

QUESTION 1: If the amount of material required for 1m 3 concrete has been calculated, how do you
produce the desired concrete in the laboratory. Write step by step.
The amount of material required for 1m 3 concrete
No 1. Aggregate: W a1 , kg
No 2. Aggregate: W a2 ,kg
No 3. Aggregate: W a3 ,kg
Cement Weight: W cem ,kg
Water Amount: W water, ,kg

**a**s*****d**f***CEMENT EXPERIMENTS

QUESTION 1: The strength class of the cement is determined by which experiment, how is it
calculated ?
(Materials, experiment instruments, preparation and procedure, experiments and calculations)

From your observation at your own residential area or your accommodation buildings, identify the current building features that need to be changed or to be constructed new in order to conform to Green Building Index. The features should include the following GBI criteria, i.e. Energy Efficiency (EE), Indoor Environment Quality (EQ), Sustainable Site Planning & MANAGEMENT (SM), Materials & Resources (MR), Water Efficiency (WE), Innovation (IN).

Life Cycle Assessment (LCA) is a tool to evaluate and quantify the impacts of a product to the environment. Watch the “Prius Life Cycle” video on Youtube. From the video and your understanding the concept of LCA, describe how the evaluation of LCA is carried out for a Prius car, which is a product from the Toyota company, Japan.