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NFPA 99 2026 | 2027 Worksheet 10 Questions and Answers
with Complete Solutions UPDATED!!!
After a final tie in on an active vacuum system, each vacuum
joint shall be tested with a BLANK leak detector or other means
that will allow detectant on an active vacuum system - ANSWER
Ultrasonic
After the final tie in each joint shall be leak tested by the source
gas. New work and the existing system at the normal operating
pressure shall be leak checked with a leak detectant that is safe
for use with oxygen and does not contain - ANSWER Ammonia
After the piping system, the blow down test shall be done. Then
the installer must perform which test? - ANSWER Initial
pressure test
Alarm panels and shutoff valves labeling shall be ____________
when modifications are made, changing the areas serviced -
ANSWER Updated
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Area alarms shall be tested to verify the warning signals for all
vital life support and critical care areas if the pressure in the
piping system increases or decreases by BLANK - ANSWER 20%
At the sample port a demand of approximated 25% load shall
be created to cause the compressors to cycle on and off
continuously and the dryers to operate for the ______ period. -
ANSWER 12 hour
Before the piping system is put into use, who is responsible for
the ascertaining that the gas delivered to the outlet/inlet has
the proper labels and connecting fittings. - ANSWER Facility
Authority
Breached portions of the systems subject to inspection and
testing shall be confined to only the specific altered zone or
area that is downstream for pressure gases at the point of
intrusion. Where a system shall be declared breached? -
ANSWER Physical separation of pipeline
System component removal
Replacement or addition of system components
NFPA 99 2026 | 2027 Worksheet 10 Questions and Answers
with Complete Solutions UPDATED!!!
After a final tie in on an active vacuum system, each vacuum
joint shall be tested with a BLANK leak detector or other means
that will allow detectant on an active vacuum system - ANSWER
Ultrasonic
After the final tie in each joint shall be leak tested by the source
gas. New work and the existing system at the normal operating
pressure shall be leak checked with a leak detectant that is safe
for use with oxygen and does not contain - ANSWER Ammonia
After the piping system, the blow down test shall be done. Then
the installer must perform which test? - ANSWER Initial
pressure test
Alarm panels and shutoff valves labeling shall be ____________
when modifications are made, changing the areas serviced -
ANSWER Updated
, Page |2
Area alarms shall be tested to verify the warning signals for all
vital life support and critical care areas if the pressure in the
piping system increases or decreases by BLANK - ANSWER 20%
At the sample port a demand of approximated 25% load shall
be created to cause the compressors to cycle on and off
continuously and the dryers to operate for the ______ period. -
ANSWER 12 hour
Before the piping system is put into use, who is responsible for
the ascertaining that the gas delivered to the outlet/inlet has
the proper labels and connecting fittings. - ANSWER Facility
Authority
Breached portions of the systems subject to inspection and
testing shall be confined to only the specific altered zone or
area that is downstream for pressure gases at the point of
intrusion. Where a system shall be declared breached? -
ANSWER Physical separation of pipeline
System component removal
Replacement or addition of system components
