MEDICAL GAS INSTALLERS FINAL
EXAM AND PRACTICE EXAM
QUESTIONS 2025 ACTUAL BRAND-NEW
EXAM COMPLETE 400 QUESTIONS
WITH 100% DETAILED VERIFIED AND
CORRECT ANSWERS ALREADY
GRADED A+ BEST VERSION
Where an initiating device is remote from the building a _
set of wires shall be permitted to connect the initiating
device to a junction box where the wiring first enters the
building?
A) double B) duplex C) single D) triple - ....ANSWER...C)
single
Two master alarm panels shall be wired independently to
the initiating device for each signal, and a single initiating
device shall be permitted to actuate _ ?
A) a computer B) a single master alarm panel C) area
alarm panels D) multiple master alarms panels -
....ANSWER...D) multiple master alarms panels
1
,When a medical gas system is supplied by a manifold or
other alternating-type bulk system, the _ alarm system
shall activate when, or just before, changeover occurs?
A) area B) local C) master D) security - ....ANSWER...C)
master
The master alarm system shall activate when the pressure
in the main supply lines increase or decrease _ % from
normal operating pressure?
A) 10 B) 20 C) 40 D) 50 - ....ANSWER...B) 20
The master alarm system shall activate when the main line
of the medical-surgical vacuum system drops to or below _
in. HgV? A) 10 B) 12 C) 30 D) 32 - ....ANSWER...B) 12
A signal from each local alarm system shall be connected
to the _ alarm panels to indicate that a problem is present
with the source equipment? A) area B) fire C) master D)
warning - ....ANSWER...C) master
Fittings for positive pressure medical gas systems must be
2
,cleaned for oxygen service by the _ supplier, or other
agency prior to installation? A) authority having
jurisdiction B) certifier C) manufacturer D) owner -
....ANSWER...C) manufacturer
It is the responsibility of the _ to furnish documentation
certifying that all installed piping and materials are
cleaned for oxygen service? A) architect B) engineer C)
installer D) verifier - ....ANSWER...C) installer
Medical-surgical vacuum system piping, when hard-drawn
seamless copper tube, shall be in accordance with any of
the following except? A) ASTM B88 B) ASTM B280 C)
ASTM B597 D) ASTM B819 - ....ANSWER...C) ASTM
B597
Which of the following piping materials shall be permitted
for field installed medical-surgical vacuum distribution
piping systems? A) carbon steel pipe B) galvanized pipe C)
plastic pipe D) stainless steel pipe - ....ANSWER...D)
stainless steel pipe
Brazed joints shall be made using a brazing alloy that
exhibits a melting temperature in excess of _ *F to retain
the integrity of the piping system in the event of fire? A)
3
, 800 B) 1000 C)1200 D) 2400 - ....ANSWER...B) 1000
The pressure in the main line of each medical gas system,
the operation and condition of the source of supply, and
the reserve source shall be monitored at the _ alarm?
A) area B) local C) master D) security - ....ANSWER...C)
master
The medical air dew point high alarm from each
compressor site will indicate at the master alarm panels
when the line pressure dew point is greater that _
A) +22 B) +32 C) +35 D) +44 - ....ANSWER...C) +35
4
EXAM AND PRACTICE EXAM
QUESTIONS 2025 ACTUAL BRAND-NEW
EXAM COMPLETE 400 QUESTIONS
WITH 100% DETAILED VERIFIED AND
CORRECT ANSWERS ALREADY
GRADED A+ BEST VERSION
Where an initiating device is remote from the building a _
set of wires shall be permitted to connect the initiating
device to a junction box where the wiring first enters the
building?
A) double B) duplex C) single D) triple - ....ANSWER...C)
single
Two master alarm panels shall be wired independently to
the initiating device for each signal, and a single initiating
device shall be permitted to actuate _ ?
A) a computer B) a single master alarm panel C) area
alarm panels D) multiple master alarms panels -
....ANSWER...D) multiple master alarms panels
1
,When a medical gas system is supplied by a manifold or
other alternating-type bulk system, the _ alarm system
shall activate when, or just before, changeover occurs?
A) area B) local C) master D) security - ....ANSWER...C)
master
The master alarm system shall activate when the pressure
in the main supply lines increase or decrease _ % from
normal operating pressure?
A) 10 B) 20 C) 40 D) 50 - ....ANSWER...B) 20
The master alarm system shall activate when the main line
of the medical-surgical vacuum system drops to or below _
in. HgV? A) 10 B) 12 C) 30 D) 32 - ....ANSWER...B) 12
A signal from each local alarm system shall be connected
to the _ alarm panels to indicate that a problem is present
with the source equipment? A) area B) fire C) master D)
warning - ....ANSWER...C) master
Fittings for positive pressure medical gas systems must be
2
,cleaned for oxygen service by the _ supplier, or other
agency prior to installation? A) authority having
jurisdiction B) certifier C) manufacturer D) owner -
....ANSWER...C) manufacturer
It is the responsibility of the _ to furnish documentation
certifying that all installed piping and materials are
cleaned for oxygen service? A) architect B) engineer C)
installer D) verifier - ....ANSWER...C) installer
Medical-surgical vacuum system piping, when hard-drawn
seamless copper tube, shall be in accordance with any of
the following except? A) ASTM B88 B) ASTM B280 C)
ASTM B597 D) ASTM B819 - ....ANSWER...C) ASTM
B597
Which of the following piping materials shall be permitted
for field installed medical-surgical vacuum distribution
piping systems? A) carbon steel pipe B) galvanized pipe C)
plastic pipe D) stainless steel pipe - ....ANSWER...D)
stainless steel pipe
Brazed joints shall be made using a brazing alloy that
exhibits a melting temperature in excess of _ *F to retain
the integrity of the piping system in the event of fire? A)
3
, 800 B) 1000 C)1200 D) 2400 - ....ANSWER...B) 1000
The pressure in the main line of each medical gas system,
the operation and condition of the source of supply, and
the reserve source shall be monitored at the _ alarm?
A) area B) local C) master D) security - ....ANSWER...C)
master
The medical air dew point high alarm from each
compressor site will indicate at the master alarm panels
when the line pressure dew point is greater that _
A) +22 B) +32 C) +35 D) +44 - ....ANSWER...C) +35
4
