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Q: Which is the horizontal angle measured from an extension of the preceding course and the ‘ahead’ line?
  • A. Adjusted angles
  • B. Deflection angles
  • C. Interior angles
  • D. Angles to the right
Correct Answer: Option B - Deflection angles– Deflection angles, right or left are measured from an extension of the preceding course and the 'ahead' line. It must be noted whether the deflection angle is right (R) or left (L). Interior angle– Interior angle are measured clockwise or counterclockwise between two adjacent lines of a closed polygonal figure.
B. Deflection angles– Deflection angles, right or left are measured from an extension of the preceding course and the 'ahead' line. It must be noted whether the deflection angle is right (R) or left (L). Interior angle– Interior angle are measured clockwise or counterclockwise between two adjacent lines of a closed polygonal figure.

Explanations:

Deflection angles– Deflection angles, right or left are measured from an extension of the preceding course and the 'ahead' line. It must be noted whether the deflection angle is right (R) or left (L). Interior angle– Interior angle are measured clockwise or counterclockwise between two adjacent lines of a closed polygonal figure.