2024 Practice Test #6

Fittings with internal seals shall be limited to only those parts _____________.

• essential for sealing or creating a dielectric break

• where medical-surgical vacuum or WAGD are used

• that are part of a dental vacuum system

• none that are listed are approved

In a non-anesthetizing area, on which side of a zone valve shall the area alarm

pressure/vacuum sensor be located?

• station outlet/inlet

• upstream side

• source

• NFPA 99 does not specify a requirement

In a category 2 dental system oxygen piping shall be ___________.

• 1 size larger than nitrous oxide

• 1 size smaller than nitrous oxide

• the same size as nitrous oxide

• there are no requirements for oxygen and nitrous oxide in a category 2 system

The instrument air dew point high alarm from each compressor site will indicate at the master alarm panels when the line pressure dew point is greater than ___.

• -22º F

• -32º F

• -39º F

• -44º F

According to NFPA 99 the minimum distance between a bulk cryogenic source and combustible materials shall be ______ feet.

• 25

• 50

• 75

• 100

Final line pressure controls shall be sized to ___ of the peak calculated demand.

• 50%

• 100%

• 110%

• not specified

Medical air compressor intake shall be located outdoors a minimum distance of ____ feet above the ground.

• 10

• 15

• 20

• 25

For medical-surgical vacuum systems, piping shall be hard-drawn, seamless copper tube type _______.

• ASTM B88

• ASTM B280

• ASTM B819

• any that are listed

Inspection and testing shall be performed on all new piped medical gas and vacuum systems to ensure, by ___________ that all applicable provisions of this document have been adhered to, and system integrity has been achieved or maintained.

• a documented process of purge usage

• a documented process and procedure

• a documented process and procedure of wasted material created

• a documented process of sanitizing the work area

What is the permitted use of the medical-surgical vacuum system?

• Patient suction

• Cleaning of scopes

• Liquid or debris disposal

• vacuum steam condensate return