New York Low Pressure Boiler COF Practice

At what increments is a gage calibrated when measured in the magnitude of 3 psig?

1. 1/10"

2. 1/4"

3. 1/2"

4. 1"

The correct answer is: 1/10"

The calibration of a gage, particularly at a magnitude of 3 psig, typically refers to the precision and sensitivity needed for accurate measurement within that pressure range. A gage that is calibrated at increments of 1/10" is structured to provide a more precise reading, which is essential when working with lower pressure levels like 3 psig. Fine increments such as 1/10" allow operators to detect small changes in pressure, facilitating more accurate adjustments and monitoring in systems where low pressure is critical. In contrast, larger increments such as 1/4", 1/2", and 1" would offer less precise readings, which may not adequately represent the variations in pressure in lower pressure applications. Therefore, a gage calibrated at 1/10" ensures that the user can operate effectively within the contextual demands of low pressure measurements.