Answer :
Final answer:
The sag reading of -0.003 inches (-0.076 mm) should be added to the indicator readings at the bottom to compensate for the sag in the bar, making the correct option (c).
Explanation:
The question appears to be related to machinery alignment or calibration, where a bottom bar sag reading of -0.003 inches (-0.076 mm) has been taken. In order to correct the readings obtained from the instruments during the alignment process, it is often necessary to adjust the readings to account for sag. In this context, the sag value, if it is an established and expected value, should typically be added to the indicator readings at the bottom to compensate for the sag in the bar.
Therefore, the correct option would be:
- (c) Be added to the indicator readings at the bottom.
It is important to apply sag correction properly to ensure accuracy in alignment or calibration activities.
