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Q: 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 upside down
Correct Answer: Option B - For taking offsets with an optical square on the right hand side of the chain line it is held by left hand upright, while for taking offsets with an optical square on the left hand side of the chain line it is held by right hand upright.
B. For taking offsets with an optical square on the right hand side of the chain line it is held by left hand upright, while for taking offsets with an optical square on the left hand side of the chain line it is held by right hand upright.

Explanations:

For taking offsets with an optical square on the right hand side of the chain line it is held by left hand upright, while for taking offsets with an optical square on the left hand side of the chain line it is held by right hand upright.