3. Select a highway horizontal curve in your local suburb by including one site photograph. Assume a suitable radius of the curve, and design the superelevation, which might have been provided.

4. Along the highway alignment, the soaked CBR values of the soil subgrades at two different locations are 1% and 5%. Draw typical cross-sections of flexible pavement at these two locations.

12.4 What is the most important reason that a unit mass of a smaller log burns more rapidly than a unit mass of a larger log?

1.    What is a masonry solid unit? And a hollow unit?

2.    Facing bricks may be classified as FBS (standard), FBX (extra special), and FBA (architectural). What is the basis for this classification?

3.    A CMU scored unite may be used to simulate a stack-bond wall, when the wall is in fact, made with a running-bond pattern. What is the advantage of having a running-bond pattern when compared to a stack-bond pattern?

Explain in detail the procedures that are required to make EIA atau AMDAL from preparation until you can obtain the EIA in Indonesia, including which department or ministry that you have to go.

Indicate True (T) or False (F):

a. The 4-step network level transportation planning approach is suitable to estimate travel demand along a corridor.

b. Traffic assignment does not refer to the estimation of zonal trip productions and attractions.

c. A logit model is not used to estimate modal utilities.

d. Mobility does not represent the operational performance of a transportation system.

e. Maximization of consumer surplus does not represent the objective of maximization of benefit of public projects.

f. Ton-miles cannot be used as a measure of freight transportation demand.

g. A change in the level of service (or quality) of a transportation system cannot be represented by a shift in the supply curve.

h. Cross-sectional models can be used to model demand functions.

A precast square concrete pile 305x305 mm in cross section is driven into ground using a steam hammer. If HE = 40 kN-m, E = 0.85, WR = 35 kN, weight of pile cap = 3.0 kN, L = 25 m, n = 0.4, Ep = 21 x 106 kN/m2 , number of blows for the last 25.4 mm pile penetration is 7 blows, unit weight of concrete = 24 kN/m3 . Compute the allowable pile capacity using: (a) Modified ENR formula (FS=6) (b) Danish formula (FS =4) (c) Janbu’s formula (FS=3) (d) PCUBC formula (FS=3)

1- What may be happen when the activated sludge system hydraulically overloaded or underloaded? What may be happen when the activated sludge system may be subjected to organic underloading or overloading?

2- What can be occur when the bar spacing is too small and too large? What are important for the operation and maintenance of screens?

3- What are the advantages and disadvantages of ground water and surface water sources?

What course of action would you recommend in the following situation?

A contractor is instructed to submit a revised programme for the works showing an earlier forecast completion than the current programme update.

( Provide references)

What are the unit problems that may occur in biological wastewater treatment plants?

for example, sludge swelling, cause and solution. Please explain and write 4 problems and solutions.

#environmental engineering

Aerial photography can be used to produce a variety of map products useful for landscape management and engineering applications.

i. Briefly explain how a Digital Elevation Model (DEM) of a landscape can be generated from overlapping aerial photographs.

ii. What is an orthophoto? How does it differ from an aerial photograph?

iii. A potentially very useful product that can be supplied to landscape managers and engineers is a ‘stereo-model’ that can be viewed, interpreted, and measured using heads-up 3-dimensional viewing technology:

a. Explain how two images can be displayed on a computer screen and visualised in 3-dimensions?

b. What advantages might this technology offer a practising land manager or engineer?

What diameter of cast iron pipe would be required to ensure that a discharge of 0.2 m3/s would not cause a head loss in excess of 0.01 m/100 m of pipe length, assume water temperature is 20 oC

Write a one page on design philosophy for concrete buildings for gravity and lateral loads. Why are they important to be designed correctly?

A subbasin in Mississippi has a predominant urban land use (high density development) under soils with a hydrologic soil group D and a potential abstraction of 0.53-in. Analyses of flow data indicate that for a 6-hr runoff event the flow of the unit hydrograph linearly increased to reach a peak of 9.6 ft3/s in 8 hours. As well, the time that takes runoff to travel from headwaters to outlet is 12-hr. Considering the recession phase of the hydrograph in also linear, determine the subbasin area (acres).

Q1: Design L2L3 member as shown below using double-angle section with 3/8-in gusset plate between the angles. Assume two-lines of three ¾-in bolts in each vertical angle-leg, spaced at 4-in on center. Use A36 steel. ​

Q2: Draw (sketch) the connections at L2 and L3 assuming all truss members are designed using double angle sections, and using the same amount of bolts.

PD= 60 kips, PL=48 kips​