A moving belt system is to be used to fransfer lubricant from a sump to the point of application. The working length of the belt is assumed to be straight and to be running parallel to a stationary metal surface. The belt speed is 200 mm/s, the perpendicular distance between the belt and the metal surface is S mm, and the belt is 500 mm wide. The lubricant is an oil, having an absolute viscosity of 0.007 Ns/m²• Estimate the force per unit length of belt and the quantity of lubricant discharged per second. If the relative density of the oil is 0.891, what is the kinematic viscosity of the oil?

A strut W 200 x 300 x 19.3 is used as a 10m long fixed connected column. Using the Euler's Formula determine the column's critical load and the critical stress.

Why is it necessary for the estimator to visit the site even when extensive site information is provided in the bid documents?

Describe the following developments :

a. The introduction of Metro and their efforts on the sizes and densities of cities.

b. The introduction of various motorised transportation modes and its effects on residential densities, physical size and forms of cities.

Transportation Engineering
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   Determine the maximum allowable span of nominal 2x4 wall forms studs carrying a design load of 1000 psf. Stud spacing is 16” on center. Use the allowable stresses for Douglas Fir from Table 13-8 and 7 day load duration. Assume that studs are continuous over 3 or more spans. Limit deflection to l/360 of span length. Based on the maximum allowable span, check for crushing of studs on double 2x4 wales. Conditions are dry.

Convert the azimuths from north to bearings, and compute the angles, smaller than 180^o, between successive azimuths.

65^o 26' 37", 127^o 25' 46", 254^o 23' 07", and 295^o 14' 08"

what is creep ? Discuss the theories propounded to explain probable causes of creep.

What is compatibility, with respect to infrastructure? Give an example of compatible civil infrastructure and an example of non-compatible civil infrastructure with justification.

Convert the water quality data below to make a diagram allowing you to quantify the 4 categories of hardness for the water, all in mg/L as CaCO3. Also use units of mg/L as CaCO3 to determine the amount of CaCO3 formed, then convert it to meq/L and mg/L. Finally, if the influent flow rate is 17 MGD, determine how many pounds per day of CaCO3 are produced. Attach all work and fill in the blanks too*.

Mg2+ = 17 mg/L

Ca2+ = 63 mg/L

HCO3- alkalinity = 80 mg/L as CaCO3

CaCH = _____________ mg/L as CaCO3

MgCH = _____________ mg/L as CaCO3

CaNCH = ____________ mg/L as CaCO3

MgNCH=____________ mg/L as CaCO3

CaCO3 = ___________ mg/L as CaCO3


CaCO3 = ___________ (meq/L)
CaCO3 = ___________ (mg/L)


CaCO3 = ____________ (lbs/day)

ignore excess lime dissolved CO2

explain three advantages and three disadvantages of using composite materials with examples.

Which of the following is NOT a method of source reduction? Select one:

a. Recycling

b. Making packages that weigh less

c. Incineration

d. Municipal composting

1. Read the following statement carefully: “The concepts of probability and statistics are powerful ones and contribute extensively to the solutions of many types of engineering problems”.

Answer the following: Why, in your own words, do you think in your specifically engineering professional practice, probability and statistics will help you to be successful?

1. Tom is a civil engineer and working in a large construction project. Tom was assigned by his manager to look for steel suppliers for the project. Tom placed a newspaper advertisement for potential suppliers to bid. A potential supplier approached Tom, indirectly requested Tom to buy steel from his company. Then he invited Tom to an expensive dinner and a boat tour. Tom was planning to accept the dinner invitation and boat tour. (a) Identify the ethical situation in this case (if any) (b) Explain what Tom should do (c) Mention the relevant Rule of Practice or Professional Obligation (if any)

2. Nathan and Bill are electrical engineers. They are colleagues and working for a reputed private firm. One day Nathan saw that his colleague Bill is accepting a new laptop as a gift from a material supplier. Next day, Nathan talked with Bill about this and told him that this is not appropriate. Bill did not care. After a couple of months later, Nathan got to know that the same supplier has arranged a vacation (i.e., air ticket, hotel etc.) in Hawaii for Bill. (d) Identify the ethical situation in this case (if any) (e) Explain what Nathan should do (f) Mention the relevant Rule of Practice or Professional Obligation (if any)

Discuss the prevalence of the use of earned-value analysis to track and control costs on construction projects?

1. Draw the Transit System Mode Comparison Capital Cost per km ( MUSD) versus Capacity ( passengers /hr / distress ) of BRT, LRT, Monorail and MRT.

2. State the four strategy for sustainable Urban Transportation System.

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