Question 338Steam Plants - 1st Asst/Chief

The correct answer is C) bearing wear is .002 inch. The explanation is as follows: 1) The original bridge gage reading was 0.008 inches, and a year later it was 0.010 inches. The difference between these two readings is 0.002 inches, which indicates the amount of bearing wear that has occurred over the year. 2) This is the correct answer because the change in bridge gage reading directly corresponds to the amount of bearing wear, as per the standard operating procedures and regulations for monitoring reduction gear bearing condition. 3) The other options are incorrect because option A) refers to the oil clearance, which is not the same as bearing wear, and options B) and D) do not accurately reflect the change in the bridge gage reading.