RMGA Medical Gas Systems Design & Components 2

Question 1

According to NFPA 99, what is the minimum pressure at which bulk liquid oxygen storage systems must be equipped with a pressure relief valve set to vent?

Accepted Answer

150 psig

Answer

Bulk liquid oxygen systems require pressure relief valves set no higher than 150 psig to protect the vessel from overpressure conditions.

Question 2

Which type of medical gas zone valve is specifically designed to allow isolation of a single patient room without affecting adjacent rooms?

Accepted Answer

Room isolation valve

Answer

Room isolation valves are installed to allow a single patient room to be shut off for maintenance or emergency without disrupting adjacent rooms.

Question 3

What is the primary function of a medical gas pressure-reducing valve (PRV) in a piped distribution system?

Accepted Answer

Reduce high source pressure to a safe, usable outlet pressure

Answer

A pressure-reducing valve steps down the high-pressure supply to the lower, regulated pressure required at outlets throughout the facility.

Question 4

NFPA 99 requires that medical gas outlets in patient care areas be installed at what minimum height above the finished floor?

Accepted Answer

48 inches

Answer

Medical gas outlets must be installed at a minimum of 48 inches above the finished floor to ensure accessibility and prevent contamination.

Question 5

In a medical compressed air system, what is the purpose of the aftercooler installed immediately downstream of the compressors?

Accepted Answer

Reduce the temperature of compressed air to condense and remove moisture

Answer

The aftercooler cools hot compressed air exiting the compressor, causing water vapor to condense so it can be removed before entering the distribution system.

(RMGA) Registered Medical Gas Administrator Certification Practice Test

(RMGA) Registered Medical Gas Administrator Certification Practice Test

RMGA Medical Gas Systems Design & Components 2