Explain why there is a straight line offset at the early time stage when analyzing aquifer test data using Cooper-Jacob straight line technique?

Do pumping tests represent aquifers heterogeneity?

A rigid strip footing with a width of B is constructed above the ground on a clay deposit, overlying bedrock. The depth of clay layer is H and the water level is at the natural surface. Before construction of the footing, laboratory tests on a saturated clay sample, taken at a depth of B/2 below the ground surface, provided the following properties:

Compression Index = Cc , Recompression Index = Cr , Consolidation Coefficient = cv

Over Consolidation Ratio = OCR, Water Content = w%, Specific Gravity = Gs

Assume the vertical uniform surcharge stress on the footing including the weight of footing and column = q

(a) Calculate the initial saturated unit weight of clay deposit.

(b) Based on the elastic theory (Boussinesq’s equation), calculate the excess pore water pressures at the depth of B/2 immediately after applying the surcharge load. Assume the vertical stress (q) is applied instantaneously.

(c) Using theory of 1-D consolidation, calculate the total average settlement of this rigid footing due to consolidation of the clay layer, long time after applying the total load.

(d) Determine the average settlement of this rigid footing after n days of applying the total load due to consolidation of clay deposit.

You have been asked to acceleration the schedule on the project and to minimize the cost impact. Address the options noted below and discuss the pros and the cons for each.

a. Fast-tracking

b. Adjusting leads and lags on connected activities. Remember a lag means starting an activity before the successor has been completed.

c. Adding resources

d. Resource leveling

e. Crashing f. Use of alternate work calendars/schedules

The settlement of foundations is typically the result of three separate occurrences that take place in the soil which provides support. List these factors and give a brief description of each.

Explain the difference between soil compression, soil consolidation, and compaction. Explain the difference between a normally consolidate and an over-consolidated soil deposit.   

Please type your answer instead of writing out your answer on paper.

Define the different ways that glass can be affixed to framing systems?

Describe each of the systems used for metal and glass curtain wall design?

Consider a 12 - mile segment of an existing four - lane freeway having very restricted geometry with rolling terrain. Peak hour volume is 2000 veh/h and the flow consist of 12% trucks and 3% recreational vehicles. The traffic is commuter type with peak hour factor 0.92. The freeway segment can be accessed by 6 on - ramps and has 8 off - ramps. Freeway consists of two lanes in each direction of 11 feet width with lateral clearance of 6 feet. Find the LOS of freeway during peak hour. (Assume basic free flow speed to be 70mi/hr)

(M & W) Consider a residential area and two shopping centers that are possible destinations. From 7-8 PM on Friday night, 950 shopping vehicle trips leave the residential area for the two shopping centers. A joint shopping-trip mode-destination choice logit model is estimated and is given the following coefficients.

If shopping centers 1 and 2 have 245,000 ft2 and 420,000 ft2 of commercial floor space, respectively, determine the distribution of Friday night shopping trips by destination and mode. (Hint: Your choice set in this MNL model is four: 1) to center 1 by auto; 2) to center 1 by bus; 3) to center 2 by auto; and 4) to center 2 by bus.)

#5-16)-A freeway ramp has following characteristics

Radius of inner edge of pavement equal to 100 ft.

One way, one lane operation with no provision for passing a stalled vehicle

Design traffic condition A

Barrier curb on both sides.

The ramp pavement width needed (ft) is most nearly?

1. 17
2. 18
3. 16
4. 15

QUESTION 1)

You are an engineer and its know that your project /activities plant production had cause an adverse health safety and environmental (HSE) impact. To improve the (HSE) quality, you have to cease your project activities or production for a period, resulting in the inability to meet the schedule and targets. how would you handle in a situation where there is a conflict between the IEM Regulation on Professional conduct and commercial consideration?

Question 2)

Engineers are often entrusted with the responsibility of implementing large scale projects involving millions of ringgits .in view of the large amount of money changing hands the integrity and ethical standards of engineers are being put to test . what measures can an engineer take to prevent corruption and unethical practice of cutting corners in order to safeguard the good image of the engineering profession?

1. Draw a schematic of a typical WWTP treatment train, including the major units for pretreatment, primary treatment, and secondary treatment. Also, identify where solids are removed for the landfill and sludge is removed for subsequent biosolids treatment. (8 pts)

Define i) primary treatment, ii) secondary treatment, and iii) sludge stabilization.

Describe the micro-structure of a fully annealed sample

The average temperatures (°F) for an 8-day period are: 32,35,34,36,48,43,42, and 40. If the area has an initial SWE of 2.46 in, K=0.06in/deg-day, and a runoff coefficient of CR = 0.5, plot the estimated daily runoff (in) from the watershed and determine the total melt and runoff for the 8-day period.