A7. (C) The degree of accuracy required.
A8. 25 feet.
A9.
0.27974.
A10. Interior angles.
Chapter 11
A1.
A2.
A3.
A4.
A5.
Station at PC1: 19 + 11.71
Station at PI1: 23 + 84.28
Station at PCC: 27 + 68.85
Station at PI2: 29 + 66.62
Station at PT2: 31 + 43.85
d1 = 1052.1´, d2 = 2°37.9´, d = 6°, C1 = 31.13fi, C2 = 43.84ft, C = 99.81 ft.
6 stations (600 feet).
(A) 124.80 feet, (B) 128.00 feet, (C) 128.80 feet, (D) 128.25 feet,
(E) Station 14 + 67, elevation on tune equals 129.0 feet.
(A) 652.00 feet, (B) 624.00 feet, (C) 636.67 feet, (D) 643.20 feet,
(E) Station 11 + 00, elevation = 652.00 feet. (The turning point is the
high or low point on a vertical curve. When the tangent grades are equal,
the high or low point will be at the center of the tune. When the tangent
grades are both plus, the low point is at the PVC and the high point is at
the PVT. When both tangent grades are negative, the high point is at the
PVC and the low point is at the PVT. When unequal plus and minus
tangent grades are encountered, the high or low point will fall on the side
of the curve that has the flatter gradient.)
Chapter 12
A1. Electromagnetic EDMs and electro-optical EDMs.
A2. 729.35 meters.
A3. Electronic positioning systems.
A4. The lock mode.
Chapter 13
A1.
A2.
A3.
A4.
A5.
A6.
A7.
To determine the moisture content at which the maximum density for a
given compactive effort occurs.
(A) Proctor, (B) 25.
To ensure that densities obtained in the field conform to the project
specification requirements.
The bulk density can change due to varying temperature and humidity
conditions.
Shear.
Type V (sulphate-resistant portland cement).
The aggregate contains exessive organic material.
AVI-4
