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Review Course Section Quiz 06
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1. Referring to the sketch, if the Angle of Intersection = 37° and the Radius = 281 ft, determine the length of the Subtangent.
a. 112.31 ft
b. 108.99 ft
c. 97.45 ft
d. 94.02 ft
2. What is the External Distance (E)?
a. 15.31 ft
b. 18.00 ft
c. 20.97 ft
d. 21.25 ft
3. The Radius of a basic circular curve is 450 ft. The Point of Curvature (
PC
) is at Station 0 + 500. Calculate the Length of Curve from PC to Point A (at station 0 + 593.)
a. 143 ft
b. 118 ft
c. 93 ft
d. 50 ft
4. A vertical sag curve is used where the change in grade is positive, such as valleys, The 3 defining points are: I. PVC, II. PVI, III. POS, IV. PVT, V. PNR
a. I, II, & III
b. I, II, & IV
c. II, III, & IV
d. II, IV, & V
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