Approximately how often is a typical building reroofed?
What will be an ideal response?
On the average 12 to 14 years.
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Fiber optics can handle more data because:
A. data can be compressed more B. analog transmissions travel faster C. light frequencies are much higher D. analog to digital conversion is not required
In which of the following fields do engineers work?
a. Design b. Sales c. Technical support d. Maintenance e. Customer service f. All of the above
Land drainage is beneficial because ________
A) it increases the depth of root penetration in the soil B) it increases the availability of iron and manganese in acid soils C) it increases the alternate of expansion and contraction due to freezing and thawing of soils D) it slows down the rate of soil warming in the spring E) it increases the water-to-air ratio in the soil pores
The speed of air is measured in
A) feet per minute - FPM B) capacity per minute - CFM C) force per minute - FPM D) cubic feet per minute - CFM