Question

Which of the following is not used in measuring perpendicular offsets?
1. Steel tape
2. Optical square
3. Cross staff
4. Line ranger

Answer 1

Correct Answer - Option 4 : Line ranger

Perpendicular offsets may be set by

A. Using cross staffs

There are three types of the cross-staff

1. Open cross-staff
2. The French cross-staff and
3. The Adjustable cross-staff

B. Using optical Square

C. Using Prism square

D. Using Steel tape

Hence, line ranger is not used for measuring perpendicular offsets