and Answers| Latest Update
The quality of instrument air shall meet all of the following requirements except be _ ? A) dry to
a dew point of 35*F B) filtered to .01 micron C) free of liquids D) free of hydrocarbon vapors
A) dry to a dew point of 35*F
The quality of instrument air shall be dry to a dew point of _ *F? A) -40 B) -32 C) +32 D) +40
A) -40
Instrument air sources shall produce air at a gauge pressure of not less than _ PSIG? A) 100 B)
150 C) 200 D) 250 C) 200
Where instrument air systems are provided with a standby header, the header shall have how
many cylinders attached? A) a sufficient amount for one hour of normal operation B) an average
day's supply C) four D) 2 A) a sufficient amount for one hour of normal operation
Intake air for instrument air compressors shall not be drawn from the _ ? A) ducted air B)
equipment room C) medical air intake D) outside C) medical air intake
Instrument air sources shall be filtered with _ filters located upstream of the final line regulators?
A) activated carbon B) duplexed C) cloth D) membrane A) activated carbon
Final line filters for instrument air shall be equipped with a continuous _ indicator showing the
status of the filter life? A) audible B) pressure C) temperature D) visual D) visual
,Final line filters for instrument air shall be rated for a minimum of 98% efficiency at _ micron?
A) 1.5 B) 1 C) .1 D) .01 D) .01
The instrument air source shall activate a _ alarm to indicate when the backup compressor is in
operation? A) main B) local C) source D) warning B) local
Instrument air systems shall activate a local alarm and alarms at all master alarm panels when the
dew point at system pressure exceeds _ *F? A) -20 B) -22 C) -24 D) -26 B) -22
Instrument air sources with standby headers are alarmed to indicate all of the following except _
? A) high dew point B) low discharge temperature C) reserve in use D) reserve low B) low
discharge temperature
In what category is the loss of piped gas or piped vacuum systems likely to cause minor injury to
patients, staff, or visitors? A) category 1 B) category 2 C) category 3 D) category 4 B)
category 2
Who shall be responsible for developing an emergency plan in the event of medical air loss at a
category 2 facility? A) AHJ B) chief engineer C) facility staff D) head of maintenance C)
facility staff
Category 2 medical-surgical vacuum systems shall be permitted to be _ ? A) disconnected B)
duplex C) in series D) simplex D) simplex
, Category 2 warning systems shall be permitted to be a _ alarm panel? A) dual B) local C) master
D) single D) single
To install a category 2 system, what qualification is needed? A) ASSE 6010 B) ASSE 6015 C)
ASSE 6020 D) ASSE 6030 A) ASSE 6010
What is the initial pressure test pressure for a category 2 system? A) 1.25 but not less than 100
psi B) 1.5 but not less than 125 psi C) 1.5 but not less than 130 psi D) 1.5 but not less than 150
D) 1.5 but not less than 150 psi
In what category is the loss of the piped gas and vacuum systems not likely to cause injury to
patients, staff, or visitors, but can cause discomfort? A) category 1 B) category 2 C) category 3
D) category 4 C) category 3
A category 3 moisture indicator shall indicate when the relative humidity of the dental air
exceeds _ at line pressure and temperature? A) 80 % B) 60% C) 40% D) 20% C) 40%
Pressure relief valves for dental air systems having less than _ ft3 at STP shall be permitted to
discharge locally indoors in a safe manner that will not restrict flow? A) 1500 B) 2000 C) 3000
D) 4000 C) 3000
Liquids drained from a category 3 vacuum source shall discharge _ to a sanitary drainage system
through an approved air gap to a trapped and vented drain? A) directly B) in C) indirectly D) out
C) indirectly