CBET Medical Gas Systems 3

Question 1

What type of compressor is typically used in a medical air supply system, and what quality standards must the air meet?

Accepted Answer

An oil-free compressor producing air meeting USP grade purity standards

Answer

A standard industrial compressor

Answer

A turbine compressor with no filtration requirements

Answer

A reciprocating compressor with automotive oil

Question 2

What is the function of a medical vacuum system in a hospital, and what minimum vacuum level must it maintain?

Accepted Answer

Provides suction for clinical procedures maintaining at least 12 inches Hg at the most remote outlet

Answer

Removes dust at 5 inches Hg

Answer

Creates negative pressure rooms at 1 inch Hg

Answer

Removes smoke during surgery at 20 inches Hg

Question 3

What is a medical gas manifold system and how does it ensure continuous gas supply?

Accepted Answer

A dual-bank arrangement of cylinders with automatic switchover between primary and reserve banks

Answer

A single large cylinder connected directly to the pipeline

Answer

A mixing chamber that combines multiple gases

Answer

A pressure boosting system

Question 4

What special precautions must be taken when working on medical gas pipelines during construction in an occupied hospital?

Accepted Answer

Pipeline isolation, gas verification at every affected outlet, infection control measures, and NFPA 99 compliance

Answer

Standard construction practices are sufficient

Answer

Only color verification is needed

Answer

Just closing zone valves is sufficient

Question 5

What is the purpose of a waste anesthetic gas disposal (WAGD) system?

Accepted Answer

To safely remove exhaled and waste anesthetic gases from the operating room to protect healthcare workers

Answer

To recycle expired anesthetic gases

Answer

To measure anesthetic gas concentration in blood

Answer

To store anesthetic gases after surgery

Question 6

How should a biomedical technician verify that a repaired medical gas outlet is delivering the correct gas before returning it to service?

Accepted Answer

Use a gas-specific analyzer to verify gas identity, then test flow rate and pressure

Answer

Check the color coding only

Answer

Ask a nurse to smell the gas

Answer

Connect a flowmeter and check the reading