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Q: The short offsets in chain survey are the ones whose length is ___________.
  • A. 21 to 25 m
  • B. > 25 m
  • C. 15 to 20 m
  • D. < 15 m
Correct Answer: Option D - An offset is the lateral distance of an object or ground feature from a survey line. By method of offsets, the point or object is located by measurement of a distance and angle (usually 90º) from a point on the chain line. • When the angle of offset is 90º, it is called perpendicular offsets. • When the angle is other than 90º it is called an oblique offsets. • The short offsets in chain survey are the ones whose length is < 15 m.
D. An offset is the lateral distance of an object or ground feature from a survey line. By method of offsets, the point or object is located by measurement of a distance and angle (usually 90º) from a point on the chain line. • When the angle of offset is 90º, it is called perpendicular offsets. • When the angle is other than 90º it is called an oblique offsets. • The short offsets in chain survey are the ones whose length is < 15 m.

Explanations:

An offset is the lateral distance of an object or ground feature from a survey line. By method of offsets, the point or object is located by measurement of a distance and angle (usually 90º) from a point on the chain line. • When the angle of offset is 90º, it is called perpendicular offsets. • When the angle is other than 90º it is called an oblique offsets. • The short offsets in chain survey are the ones whose length is < 15 m.