On the regulator, displays outlet pressure:

• A. Left Gauge
• B. Right Gauge
• C. Top Gauge
• D. Bottom Gauge

Answer: (A)

Gauges on a regulator are there to show two different pressures: the pressure in the cylinder (high-pressure side) and the pressure after regulation going to the work (outlet or working pressure). In this regulator’s layout, the left-hand dial is the outlet gauge, so it displays the pressure being delivered to the downstream line or torch. This positioning lets you monitor and adjust the working pressure directly as you set the control knob, ensuring you have the correct flow to your operation. The other gauge, by contrast, indicates cylinder pressure, showing how much gas remains in the bottle. Correctly identifying the outlet gauge is essential for safe and accurate operation, since you want to read the pressure you actually use at the point of use.