Technician A says that the two types of dial indicator faces are balanced and continuous read out. Technician B says that a balanced dial indicator face will have a plus or minus reading. Which technician is correct?

both A and B.

Explanation:

Here both the Technician A and B are correct. That is at the two types of dial indicator faces are balanced and continuous read out.

And also, that a balanced dial indicator face will have a plus or minus reading.

Balance dial indicator are generally used for quality analysis in manufacturing process.