Engineer Johnson was employed to inspect an aged vacant building and prepare a report on its
structural condition before sale. He found some structural defects which, if not repaired, might lead
to collapse of the building. He then advised his client to carry out the necessary repair works
immediately. The client ignored the advice. In an email to Engineer Johnson, the client wrote,
“…… I pay for your service. The content of the report is my privileged information. You should
not reveal it to anyone without my consent……”. A week later, Engineer Johnson saw an
advertisement in the newspaper that the building had been put up for sale.

Engineer Johnson’s responsibilities to the relevant stakeholders conflicted with one another.
Identity the responsibilities and explain the conflict.

The ETHICS PLUS decision making process developed by the Independent Commission Against
Corruption is a useful tool for resolving ethical issues. Explain the PLUS standards for evaluating
the alternatives identified in the process.

4 Q5 Total
Marks
8 Marks
8 Marks
8 Marks
8 Marks
8 Marks 40 Marks
              Q1: A cantilever beam having span ‘L’ m was subjected to a uniformly distributed load of magnitude 8 kN/m for a distance of ‘0.6 L’ from the free end and two concentrated loads one of magnitude 15 kN at a distance ‘0.25 L’ m from the free end while the other of magnitude ‘22’ kN at a distance ‘0.6 L’ m from the free end respectively. It was observed that the maximum bending moment acting on the beam is equal to (-369 kNm). Suggest a suitable span for the beam based on the loading condition. How it will change the reaction at the fixed support? What happens to the shear force and bending moment values at the fixed support, free end and at the center of the beam? By plotting bending moment and shear force diagram for the beam briefly conclude the relationship between the values for shear force and bending moment.

A single lane road is designed for a speed of 75kmph having a two-way traffic with radius of 350m. Determine the following (use different reaction time for question i, ii & iii).

Stopping Sight Distance for plain road.

Stopping Sight Distance for ascending and descending gradient of 1/75.

Overtaking sight distance. (take interpolated value for ‘a’)

Sketch of maximum overtaking zone distance and sign posts.

Setback distance for SSD (only plain road) and OSD for curve length of 150m and d=2m using above obtained values and also perform checks.

a)Use SBC 304 to design a simply supported rectangular RC beam with tension reinforcement only to carry a service dead load of 18 kN/m (excluding beam’s self-weight) and service live load of 6 kN/m. The span of the beam is 7.5 m. Design data:Compressive strength of concrete, ?’?=25MPaYield strength of reinforcing steel, ??=420MPaConcrete cover 50mmSize of stirrups 10 mmSize of main reinforcement20mmMaximum size of aggregate 20 mm

b)What is the maximum uniform live load (in kN/m) that the beam designed in part (a) can carry according to SBC 304?

A rectangular channel with a base width of 3 m carries a discharge of 6 m3/s at a depth of 1.1 m. At downstream, there is a gradual rising of a channel bed of 0.1 m.

a) Plot the specific energy curve from y = 0.4 m to 1.3 m in a step 0.1 m and from the curve, determine the depth of flow at the downstream section. Label the graph and show your working answers clearly on the graph. *

1. Describe theoretical and regional flood frequency analysis method for computation of flood hazard.

Briefly explain how levelling is carried out and the formation of the collimation error. How can the collimation error be eliminated? Also, describe other possible sources of error in levelling, and explain what precautions can be taken to avoid these errors.

A sag vertical curve is to join a grade of g1=−3.50% to a grade of g2=−1.25%. What is the minimum length of the curve for acceptable passing sight distance at night, with headlight illumination? Express your answer in feet to five significant figures.

there is no more info. this is all that was given to us.

USING UNITED STATES IBC CHAPTER 6

1. An exterior wall is defined as a building enclosing wall that has a minimum slope of ____ degrees with the horizontal plane.

A. 45               B. 60               C. 75               D. 90

2. Veneer secured and supported through the adhesion of an approved bonding material applied to an approved backing is considered as _______ veneer.

A. adhered                  B. anchored                 C. attached                  D. spandrel

3. A minimum of _________ shall be attached to exterior sheathing in order to provide a continuous water-resistant barrier behind the exterior wall veneer.

A. one layer of No. 15 asphalt felt

B. one layer of No. 30 asphalt felt

C. two layers of No. 15 asphalt felt applied shingle fashion

D. two layers of No. 15 asphalt felt applied shingle fashion

4. Precast stone facing shall be a minimum of ____ inch in thickness in order to be acceptable as an approved weather covering.

A. ½                            B. 5/8                          C. ¾                            D. 1

5. When installed in a compliant manner, exterior masonry veneer having a maximum installed weight of ____ pounds per square foot may be supported on wood construction.

A. 15                           B. 20                           C. 25                           D. 40

6. What is the minimum permitted thickness for metal veneer mounted on approved sheathing on wood construction?

A. 0.0149 in                B. 0.0224 in                C. 0.0478 in                D. 0.0630 in

7. List the performance requirement(s) of weather protection of exterior walls as per code.

8. Use of wood, masonry, concrete and several other materials are permitted in the code for the construction of exterior walls. Name five (5) more approved materials.

9. List the specifications for the wood veneers on exterior walls of Types I, II, III & IV buildings.

10. The code permits the use of combustible materials in the construction of exterior walls of Types I, II, III & IV buildings, however, with some limitations. List four (4) such limitations.

Short answer please..

During the site investigation for a highway project, you observed a wet clayey soil deposit. How can you check scientifically the saturation condition of soil in terms of saturated/unsaturated state?

A soil specimen is subjected to a uniformly distributed fluid pressure only in a triaxial compression test. Draw the Mohr’s circle representation of the state of stress within the soil specimen.

Would you like to recommend cohesive soils as the backfills behind a retaining structure? Justify your answer.

Example of Mix design proportion calculation
• You need to design the mix proportion of a grade 40 for a column with workability of 50
mm slump and w/c not more than 0.55. The maximum size of gravel aggregate is 10 mm
and the fine aggregate is quarry blast sand. The moisture content of the aggregate is as
follow:
• The gravel aggregate is in moist condition with moisture content of =3.5%, dry density
= 1700 kg/m3
• The sand is in moist condition with saturated surface dry density = 2600 kg/m3
. Percent
passing at 600m =35%,water absorption = 0.5%,
• Aggregate relative combined density (saturated surface dry) = 2.60
• Cement used is Sulfate Resistance because part of column is in soil identified to contain
sulfate

21. List at least 10 functions that exterior building cladding performs and list one or two ways in which each of these functions is typically satisfied in a cladding design. Answer:

a. _______________________ ; ______________________________________________________

b. _______________________ ; ______________________________________________________

c. _______________________ ; ______________________________________________________

d. _______________________ ; ______________________________________________________

e. _______________________ ; ______________________________________________________

f. _______________________ ; ______________________________________________________

g. _______________________ ; ______________________________________________________

h. _______________________ ; ______________________________________________________

i. _______________________ ; ______________________________________________________

j. _______________________ ; ______________________________________________________

A a = 0.55 (m) × b = 0.3 (m) concrete box with Manning roughness coefficient of n = 0.016 is to be placed under a roadway. During the T = 100 years design storm, it is expected that water will pond behind the culvert to a height h = 0.2 (m) above the crown of the culvert. If the culvert entrance is to be rounded with the exit loss coefficient of Ke = 0.2 and discharge coefficient of Cd = 0.45. If the slope of the culvert is S% = 0.2 and the length of the culvert is L = 4 (m),

1. estimate the flow rate through the culvert.
2. If the flow rate drops down to 20% of the design storm, estimate the depth of water behind the culvert.

Why is this false?

IDF curves, becoming more accurate when correlated with areal photography (e.g., photos captured via airplane, etc), yield average rainfall depths for a given watershed serving as another way to validate averaging techniques such as the Thiessen methods.