throughout its length. You would be justified in assuming that the:
Track was located on a sharp curve.
Track was to be used for high-speed traffic.
Traffic density was light.
Track's construction was faulty.
A line is tangent to a circle if it:
Touches the circumference of the circle at two points through its center.
Makes a right angle with any of the radii of the circle at its center.
Touches the circumference of the circle at two and only two points.
Makes a right angle with the radius of the circle at its circumference.
Standard gage ordinarily refers to track that, when measured at the gage line,
inches between the rails.
A railroad has a grade of 1.7 percent. If the horizontal distance between two
points on the grade is
200 feet, what is the
difference in elevation (E
on the sketch) between
(Using the following key, indicate your reaction to each of the statements.)