MED GAS 3 EXAM QUESTIONS
WITH 100% CORRECT DETAILED
ANSWERS
The scale range of positive pressure analog indicators shall have the normal reading fall
within the what percentage of the gauge scale? A) 25. B) 50. C) 75. D) 100. - Answer-B)
50 also called the middle third
Where shall pressure indicators be provided for medical gas systems? A) on the main
supply line. B) at the area alarm. C) outlet / inlet side of zone valve. D) all of the above. -
Answer-D) all of the above
Since the dew point in carbon monoxide monitors are located upstream of the source
valve, demand check fittings are not required. true or false - Answer-False
All medical gas alarm system shall have a blank audible indicator for each condition
monitored? A) adjustable. B) cancelable. C) optional. D all of the above. - Answer-B)
cancelable
The master alarm system shall consist of two or more alarm panels, is centralized
computer system shall not be permitted to be used as suitable for one of the required
master alarm panels. True or false - Answer-False
The master alarm system shall activate when pressure is in the main supply lines
increase or decrease by? A) 10%. B) 20%. C) 40%. D) 50%. - Answer-B) 20%
In positive pressure systems, area alarm sensors for vital life support and critical care
areas shall be located on which side of the zone valve box assemblies. A) patient room
side. B) outlet / inlet side. C) downstream side. D) all of the above - Answer-D all of the
above
Category 1 medical-surgical vacuum sources shall, at a minimum, consist of blank or
more vacuum pumps? A) one. B) two. C) three. D) four. - Answer-B) Two
Category 1 medical surgical vacuum sources shall consist of an automatic means to
prevent blank true any off cycle vacuum pumps? A) Vacuum. B) back pressure. C)
backflow. D) all of the above. - Answer-C) backflow
, Piping between vacuum pump and the source shutoff valves shall be permitted to be
stainless / galvanized or black steel pipe. True or false? - Answer-True
vacuum receivers shall be capable of with standing a gauge vacuum of blank of
Mercury? A) 29 inch. B) 30 inch. C) 29.9 inch. D) all of the above. - Answer-C) 30"
The medical surgical vacuum receiver shall be serviceable without shutting down the
system by? A) manually. B) automatically. C) manually or automatically. D) none of the
above - Answer-A) Manually
The medical surgical vacuum exhaust shall be turned down and screened. The
screening shall be fabricated using what type of material? A) steel mesh. B) steel wire.
C) any non-corroding material. D) any of the above - Answer-C) any non-corroding
material
Multiple vacuum pump shall be permitted to be joined together to one common exhaust
provided the common exhaust is size to? A) prevent backflow. B) minimize back
pressure. C) Peak calculated demand. D) manufacturer recommendations. - Answer-B)
minimize back pressure
Vacuum exhaust from multiple pumps join together to one exhaust shall be permitted
provided that each pump can be isolated by what. A) blind flange. B) manual valve. C)
check valve. D) any of the above. - Answer-D any of the above
Category1 medical-surgical vacuum systems shall activate which alarm when the
backup or lag pump is running? S) master. B) area. C) local. D) all of the above. -
Answer-C) Local
A category 1 dedicated wagd source shall consist of blank or more procedures, each
shall be significant to serve the peak calculated demand. A) one. B) two. C) three. D) all
of the above. - Answer-B) two
What source shall not be used to power venturi of W.A.G.D.system? A) instrument air.
B) Medical air. D) inert gas. D) all of the above. - Answer-B) Medical air
W.A.G.D. vacuum procedures designed for operation at vacuums below blank HG /v
shall be used only for W.A.G.D. service and not employed for other services? A) TWO.
B) three. C) four. D) five. - Answer-D) five
Main branches in medical gas piping systems shall not be less than what? A) 3/4
N.P.S., B) 5/8 N.P.S., C) 1/2 N.P.S., D) 3/8 N.P.S. - Answer-C) 1/ 2. N.P.S.
Mains and branches in medical surgical vacuum systems shall not be less than what?
A) 7/8, N.P.S. B) 3/4 N.P.S., C) 5/8 N.P.S., D) 1/2 N.P.S. - Answer-B) 3/4 N.P.S.
WITH 100% CORRECT DETAILED
ANSWERS
The scale range of positive pressure analog indicators shall have the normal reading fall
within the what percentage of the gauge scale? A) 25. B) 50. C) 75. D) 100. - Answer-B)
50 also called the middle third
Where shall pressure indicators be provided for medical gas systems? A) on the main
supply line. B) at the area alarm. C) outlet / inlet side of zone valve. D) all of the above. -
Answer-D) all of the above
Since the dew point in carbon monoxide monitors are located upstream of the source
valve, demand check fittings are not required. true or false - Answer-False
All medical gas alarm system shall have a blank audible indicator for each condition
monitored? A) adjustable. B) cancelable. C) optional. D all of the above. - Answer-B)
cancelable
The master alarm system shall consist of two or more alarm panels, is centralized
computer system shall not be permitted to be used as suitable for one of the required
master alarm panels. True or false - Answer-False
The master alarm system shall activate when pressure is in the main supply lines
increase or decrease by? A) 10%. B) 20%. C) 40%. D) 50%. - Answer-B) 20%
In positive pressure systems, area alarm sensors for vital life support and critical care
areas shall be located on which side of the zone valve box assemblies. A) patient room
side. B) outlet / inlet side. C) downstream side. D) all of the above - Answer-D all of the
above
Category 1 medical-surgical vacuum sources shall, at a minimum, consist of blank or
more vacuum pumps? A) one. B) two. C) three. D) four. - Answer-B) Two
Category 1 medical surgical vacuum sources shall consist of an automatic means to
prevent blank true any off cycle vacuum pumps? A) Vacuum. B) back pressure. C)
backflow. D) all of the above. - Answer-C) backflow
, Piping between vacuum pump and the source shutoff valves shall be permitted to be
stainless / galvanized or black steel pipe. True or false? - Answer-True
vacuum receivers shall be capable of with standing a gauge vacuum of blank of
Mercury? A) 29 inch. B) 30 inch. C) 29.9 inch. D) all of the above. - Answer-C) 30"
The medical surgical vacuum receiver shall be serviceable without shutting down the
system by? A) manually. B) automatically. C) manually or automatically. D) none of the
above - Answer-A) Manually
The medical surgical vacuum exhaust shall be turned down and screened. The
screening shall be fabricated using what type of material? A) steel mesh. B) steel wire.
C) any non-corroding material. D) any of the above - Answer-C) any non-corroding
material
Multiple vacuum pump shall be permitted to be joined together to one common exhaust
provided the common exhaust is size to? A) prevent backflow. B) minimize back
pressure. C) Peak calculated demand. D) manufacturer recommendations. - Answer-B)
minimize back pressure
Vacuum exhaust from multiple pumps join together to one exhaust shall be permitted
provided that each pump can be isolated by what. A) blind flange. B) manual valve. C)
check valve. D) any of the above. - Answer-D any of the above
Category1 medical-surgical vacuum systems shall activate which alarm when the
backup or lag pump is running? S) master. B) area. C) local. D) all of the above. -
Answer-C) Local
A category 1 dedicated wagd source shall consist of blank or more procedures, each
shall be significant to serve the peak calculated demand. A) one. B) two. C) three. D) all
of the above. - Answer-B) two
What source shall not be used to power venturi of W.A.G.D.system? A) instrument air.
B) Medical air. D) inert gas. D) all of the above. - Answer-B) Medical air
W.A.G.D. vacuum procedures designed for operation at vacuums below blank HG /v
shall be used only for W.A.G.D. service and not employed for other services? A) TWO.
B) three. C) four. D) five. - Answer-D) five
Main branches in medical gas piping systems shall not be less than what? A) 3/4
N.P.S., B) 5/8 N.P.S., C) 1/2 N.P.S., D) 3/8 N.P.S. - Answer-C) 1/ 2. N.P.S.
Mains and branches in medical surgical vacuum systems shall not be less than what?
A) 7/8, N.P.S. B) 3/4 N.P.S., C) 5/8 N.P.S., D) 1/2 N.P.S. - Answer-B) 3/4 N.P.S.
