1. In the diagram, which known corners would control the position of the lost corner “A”?

 a. 3, B, 1, and 6
 b. 1 and 5
 c. 1, 5, 3, and C
 d. 1, 4, 5, and 3
 
2. What would this method be called?

 a. Two Point Control
 b. Double Proportion
 c. Two way Proportion

3. If "A" had been restored, which corner should be the next focus of proportional search or restoration?

 a. B
 b. F
 c. C

4. In the diagram, what method and corners would be used to restore corner B?

 a. 2, 3, and 4 Three Way Control
 b. 3 and 4 Single Proportion
 c. A and C Single Proportion

5. What would you apply if an original surveyor had chained "long" and to the "right of true"?

 a. Record Error
 b. Record Correction
 c. Index Correction for average error


6. In this problem, we have retraced a line using record data and placed a temp. The original surveyor averaged 0.49 chains "long" on each mile he ran, and also was O1° 12' to the right of his stated bearings, as proven by many miles of retracement of his work. To reflect these average errors, what would our adjusted bearing and distance be? What would the moves be from temp.? 

Bearing

 a. N 87° 45' W
 b. S 89° 51' W
 c. N 88° 45' W

Distance

 a. 41.785
 b. 41 995
 c. 41.895

Move

 a. N 0.882, W 0.230
 b. N 0.828, W 0.233
 c. S 0.887, W 0.224
 
Correct Answers for Unit 2 Section 2A Review Exercise:

1. In the diagram, which known corners would control the position of the lost corner “A”?

Correct Answer: d. 1, 4, 5, and 3

2. What would this method be called?

Correct Answer: b. Double Proportion

3. If "A" had been resotred, which corner should be the next focus of proportional search or restoration?

Correct Answer: c. C 

4. In the diagram, what method and corners would be used to restore corner B?

Correct Answer: c. A and C Single Proportion

5. What would you apply if an original surveyor had chained "long" and to the "right of true"?

Correct Answer: c. Index Correction for average error

6. In this problem, we have retraced a line using record data and placed a temp. The original surveyor averaged 0.49 chains "long" on each mile he ran, and also was O1° 12' to the right of his stated bearings, as proven by many miles of retracement of his work. To reflect these average errors, what would our adjusted bearing and distance be? What would the moves be from temp.?
 
Bearing

Correct Answer: a.N 87° 45' W

Distance

Correct Answer: c.41.895

Move

Correct answer: a.N 0.882, W 0.230