RMGA Equipment Operation 3

Question 1

A zone valve in a medical gas piping system is primarily used to:

Accepted Answer

Isolate a section of piping for maintenance or emergency shutoff

Answer

Zone valves allow specific sections of the piping system to be shut down without affecting the rest of the facility.

Question 2

What does a medical gas area alarm activate in response to?

Accepted Answer

Pipeline pressure deviating above or below set thresholds

Answer

Area alarms monitor pipeline pressure and trigger audible and visual warnings when pressure falls outside the acceptable operating range.

Question 3

Which statement best describes a Diameter Index Safety System (DISS) fitting?

Accepted Answer

A non-interchangeable connection system for low-pressure medical gas equipment

Answer

DISS fittings use unique thread diameters for each gas to prevent accidental cross-connection of equipment at low-pressure outlets.

Question 4

When inspecting a liquid oxygen (LOX) storage vessel, which condition would indicate a problem requiring immediate attention?

Accepted Answer

Visible ice buildup around the pressure relief valve vent

Answer

Ice accumulation at the relief valve vent suggests the valve may be partially open or venting continuously, indicating a pressure issue.

Question 5

What is the purpose of the PISS (Pin Index Safety System) on small medical gas cylinders?

Accepted Answer

To prevent connection of the wrong regulator to a cylinder

Answer

PISS uses specific pin hole patterns for each gas type so only the correct yoke-style regulator can be attached to a cylinder.

(RMGA) Registered Medical Gas Administrator Certification Practice Test