9. Two parallel tracks 350 m apart is to be connected by a reversed curve. The radius of the first curve is 350m with A = 30°. determine the length of the common tangent. a) 700 m c) 606.22 m b) 93.78 m d) 2262.44 m
9. Two parallel tracks 350 m apart is to be connected by a reversed curve. The radius of the first curve is 350m with A = 30°. determine the length of the common tangent. a) 700 m c) 606.22 m b) 93.78 m d) 2262.44 m
Chapter2: Loads On Structures
Section: Chapter Questions
Problem 1P
Related questions
Question
![9. Two parallel tracks 350 m apart is to be
connected by a reversed curve. The radius of the
first curve is 350m with A = 30°. determine the
length of the common tangent.
a) 700 m
c) 606.22 m
10. A +2.8% grade at 1 + 200 is to be connected to a
-4.2% grade at 1+600 using a symmetrical
parabolic curve. The tangents intersect at
elevation 178.53m. Compute the distance of the
highest point from BVC.
a) 200 m
c) 160 m
11. A +2.8% grade at 1 + 200 is to be connected to a
-4.2% grade at 1+600 using a symmetrical
parabolic curve. What is the vertical distance of PI
from BVC?
a) 4.8 m
c) 2.8 m
12. A sag curve is composed of two parabolic curves.
BVC and EVC have elevations 250.30m and
246.30m respectively. The grade of the tangents
is -3.5% at BVC (1+300) and +5.5% at EVC
(1+800). What is the grade of the common
tangent?
a) 1.25%
c) 0.008%
b) 93.78 m
d) 2262.44 m
b) 240 m
d) 178.53 m
b) 5.6 m
d) 8.4 m
b) 0.08%
d) 0.8%](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F0d2cea8d-65ea-47d6-a16e-f0c6d7e74ca1%2F0c79efc5-0ee0-4deb-8e72-916fd65cc107%2Fau1lsv_processed.jpeg&w=3840&q=75)
Transcribed Image Text:9. Two parallel tracks 350 m apart is to be
connected by a reversed curve. The radius of the
first curve is 350m with A = 30°. determine the
length of the common tangent.
a) 700 m
c) 606.22 m
10. A +2.8% grade at 1 + 200 is to be connected to a
-4.2% grade at 1+600 using a symmetrical
parabolic curve. The tangents intersect at
elevation 178.53m. Compute the distance of the
highest point from BVC.
a) 200 m
c) 160 m
11. A +2.8% grade at 1 + 200 is to be connected to a
-4.2% grade at 1+600 using a symmetrical
parabolic curve. What is the vertical distance of PI
from BVC?
a) 4.8 m
c) 2.8 m
12. A sag curve is composed of two parabolic curves.
BVC and EVC have elevations 250.30m and
246.30m respectively. The grade of the tangents
is -3.5% at BVC (1+300) and +5.5% at EVC
(1+800). What is the grade of the common
tangent?
a) 1.25%
c) 0.008%
b) 93.78 m
d) 2262.44 m
b) 240 m
d) 178.53 m
b) 5.6 m
d) 8.4 m
b) 0.08%
d) 0.8%
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