Civil and Environmental Engineering Answers

What are some of the critique and limitations of Cost-benefit analysis?



Estimates of the Total economic value is standardized and does not vary



That individuals prefer to have benefits now rather than later



Discounting is fair to the future generations



Monetary values can be put on all environmental and health assets



That individuals prefer to pay the costs now rather than later



Questionable assumption that individual preferences are the only thing that counts

Explain how can the total hardness be distinguished from the CaCO3

hardness?

For a 20 inch square base plate of A36 steel supporting a W12 x 50 column,determine the axial compression force from the column Pu.The base plate is on the full area(A1=A2)of a concrete pedestal (fc=5ksi).The baseplate thickness t= 15/8 inch.

Solve this-

Chairman of a company wants to give best employee award to one of his 1000 employees. Problem is all hv done very well. So he decides to find the winner by a simple method. He makes them stand in a row. Then he disqualified all odd numbers. So those at 1,3,5,7.... are out. Out of remaining 500 he again eliminates those at odd numbers. And this method continues. Which number will get the award?

A 2 tonnes car is towed by a 2.5 tonnes truck which moves off from rest and reaches a

speed of 2m/s before the tow-rope tightens on the stationary car. The rope then stretches

taking up the strain for 0.15 seconds.Find:

(a) the common speed when the rope ceases to stretch

(b) the average impulsive force in the rope.(Neglect resistance and the effect of the truck’s

propelling force during the stretching period

Short notes on unit process in waste water management

how to resolve force F=100N and angle of 30 degrees into its horizontal and vertical component

Цhat is a method statement?

A steel bar, area 625 mm^2, is embedded in a block of concrete 100 mm x 100 mm. The length of both the steel bar and concrete block is 300 mm. Assuming a value of 210 kN/mm^2 for Young's Modulus for the steel, and 14 kN/mm^2 for the concrete, determine the load carried by the steel and the load carried by the concrete if the combined section is subject to a compressive load of 5 kN. Assume that there is no slip between the steel and concrete(the strain in both materials is equal) and that the load is applied over the entire cross section.