Surveying - Engineering

Q1:

For taking offsets with an optical square on the right hand side of the chain line, it is held

A by right hand upside down

B by left hand upright

C by right hand upright

D by left hand up side down.

ANS:B - by left hand upright

By keeping the instrument in our left hand we can take the readings for the right side and left hand can be used to giving the directions for the person who is holding the ranging rod.

And also optical square is always kept with direction upward.