The type of station outlet connection that uses noninterchangeable thread fittings to connect gas-powered devices to station outlets is known as:
a. regulator. c. Pin Index Safety System.
b. quick-connect adapter. d. DISS.
ANS: D
Figure 3-20 shows an outlet that uses DISS. This system, which was designed by the CGA, uses noninterchangeable thread fittings to connect gas-powered devices to station outlets.
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