Compare delivering power on overhead wires with underground wiring
What will be an ideal response?
Delivery is cheaper using overhead lines, but is subject to damage during storms or accidents. Underground wiring is more costly to install and maintain but avoids unsightly wiring.
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What is the most common basis for waiving a cost condition?
What will be an ideal response?
GIS stands for Global Intelligence System
Indicate whether the statement is true or false
Let X ~ U(a, b). Use the definition of the variance of a continuous random variable (Equation 2.38 or 2.39) to show that 
.
What will be an ideal response?
Bar screens and grit chambers are used
a. only in primary wastewater treatment plants b. in most municipal wastewater treatment plants c. very rarely due to applications of modern technology d. only in advanced wastewater treatment plants e. in most municipal water supply facilities