Why do private project owners often prefer to develop a small ...

[mcmcdaniel]

Why do private project owners often prefer to develop a small list of companies to invite for bidding rather than open the project to any and all interested bidders?
 
  What will be an ideal response?

Question 2

What measurement compares the horizontal length measured from the map's scale to the vertical rise or fall determined by contour lines and contour intervals?
 
  a. slope c. drainage capacity
  b. contour d. soil type

[Brummell1998]

Answer to Question 1

It is one way of eliminating small unqualified companies from bidding. It also lets the owners deal with fewer competitors but in a more personal way.

Answer to Question 2

A
slope

[mcmcdaniel]

Excellent

[kishoreddi]

Thanks for the timely response, appreciate it