ceie 360 exam 1 review

When |G1| = |G2|, PVC = PVT (Vert. Curve). True or False?

True

For vertical curve, Elevation of PVC = Elevation of PVI - L/2. True or False?

True

G1 = 1%, G2 = -2.1%: This is a Crest curve. True or False?

False

For a given value of K and A, the minimum length of sag vertical curve is different from the length of crest vertical curve. True or False?

True

How do you run stationing on a vertical curve?

Horizontally

For a sag vertical curve, passing sight distance requirement is far more than stopping sight distance

True

Stopping sight distance on a vertical curve is derived based on:

We ignore effect of grade because the structure of curves works itself out in safe design

Which of the following factors is not a consideration for design of vertical curves?

Clearance distance to a roadside obstruction

For a sag vertical curve during nighttime driving the controlling vehicle is

A passenger car

If G1 and G2 are back and forward tangents of a vertical curve, by visual inspection which of the following is a sag vertical curve?

G1 = -1.51% ; G2 = -1.15%

G1 = +1.15% ; G2 = -1.51%

G1 = -1.15% ; G2 = -1.51%

G1 = +1.51% ; G2 = +1.15%

G1 = -1.51% ; G2 = -1.15% (remember that a sag vertical curve goes from smaller% to larger%, or - to +)

For a horizontal curve, radius to the roadway centerline R can be the same as radius that controls clearance to the roadside object RV only if:

the curve is on a single lane road

Which of the following is NOT a property of equal tangent parabola as it is applied to vertical alignment?

Elevation at PVI = Elevation at PVT

Starting point for transportation infrastructure development is:

Policy

Which of the following politicians championed the advent of Interstate Highway system in USA

President Eisenhower

For placement of traffic signs, the code of practice you would refer to is:

MUTCD

PIEV time is most commonly referred to as reaction time (True or False)

True

A driver under the influence is impaired in realizing which part of the stopping sight distance the most? (Reaction or Braking?)

Reaction

Drag coefficient is measured via empirical studies (True or False?)

True

Lower tire pressure ____________ the aerodynamic resistance (increases, decreases, or doesn’t change)

doesn’t change

A reaction time of 2.5 sec doesn’t cover the following percentage of drive population: (10%, 85%, 90%, 15%)?

10%

The generalized deceleration rate of 11.2 sec/ft² does not apply for rainy conditions (True or False)

False

Which of the two characteristics of the driver were generalized for highway design?

Reaction time and deceleration

Aerodynamic resistance is directly proportional to

Density of air