Why did news of the July Monarchy’s collapse in 1848 spread more rapidly than that of earlier nineteenth-century revolutionary events?
a. better roads
b. improved communications
c. increased population sizes
d. closer contacts between European communities
b. improved communications
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A crest vertical curve connects a +4.90% grade and a –1.85% grade. The PVI is at station 77+00.00 at an elevation of 770.00 ft. The design speed is 60 mi/h. Determine: the following below
(a) The length of the vertical curve using the AASHTO method (“K” factors) (b) The station of the BVC (c) The elevation of the BVC (d) The station of the EVC (e) The elevation of the EVC (f) The station of the high point (g) The elevation of the high point (h) The elevation of station 75+30.00 Also, provide a tabulation showing the elevations at each full station on the curve, including the distance from the BVC for each full station, the elevation on initial tangent, the offset, and the elevation on the vertical curve. This can be in the form of a computer printout from Microsoft Excel or another program. What will be an ideal response?
Which of the following correctly describes the relationship among the several methods available to measure electrical conductivity (EC) of soils?
A) Electromagnetic induction method requires prongs to penetrate the soil. B) The saturation extract procedure is more accurate than the saturated paste method. C) The four electrode field sensor gives EC values about 2x those of the saturated paste method. D) The saturated paste method takes more time than the four electrode field sensor. E) The saturated paste extract method is the best field method.
The most costly aspect of solid waste management involves its
a. storage b. processing c. disposal d. collection e. none of these
How is field current routed through an alternator?
A. through the stator only B. through the rotor only C. through slip rings and the stator D. through slip rings and the rotor