LP INSTALLERS EXAM 2025-2026 ACTUAL COMPLETE REAL
EXAM QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWERS) ALREADY GRADED A+ / NEWEST EXAM / JUST
RELEASED!! Lp installers practice exam
On CSST tubing of 1.5 and 2 inches having a UV stabilized
jacket , tubing materials appropriate for outdoor conditions and
attached by an appropriate method to the roof structure .
Blocks are to shall be supported on blocks constructed of be
spaced not more than ____ inches apart . The method used to
attach the CSST to the block shall not damage the plastic
coating -
ANSWER-48
On CSST tubing Under 1.5 inch Support : - ANSWER-
Continuously on rail, rail
shall be supported
every 6'
On rooftop units ( or similar ) , the maximum length of
CSST tubing not
supported shall not exceed ____ inches -
ANSWER-30
On gas pressure boosters , a pressure regulator shall be
provided to maintain a
,constant outlet pressure and be installed immediately
downstream of the
booster except when the pressure booster is equipped with an
integral pressure
regulator - ANSWER-
True
The following is required when utilizing gas pressure boosters :
- ANSWER-Must meet product acceptance requirements The
serving gas supplier has written authorization must be located
in well ventilated spaces and be accessible for examination ,
maintenance or replacement
When a draft hood is used , which of the following does
NOT apply ? -
ANSWER-may be installed in a
different room
When a draft hood is used , which of the following does apply -
ANSWER-must be installed without alteration and to
manufacturer's instructions must not be installed in a false
ceiling must not be installed in a manner that will permit a
difference in pressure between the draft hood relief opening
and the combustion air supply
Permits shall be invalid if work is not started within ____ days
of the date of the permit unless holder of permit Can prove that
the failure to start was beyond his / her control - ANSWER-90
, Ön gas piping systems with pressures over 70 PSIG , what
method of joining
must be used ? - ANSWER-
welded
On gas pressure boosters : - ANSWER-If not part of the booster
, the equipment served by the booster shall be equipped with a
manual re - set low gas pressure switch and a check valve
upstream of the booster . bypasses for pressure boosters shall
include a manual shut off and a check valve
Gas pressure booster shall be installed : - ANSWER-on a firm
foundation on
surfaces capable of supporting the load kept free
of vibrations
When 2 vent connectors go into a single chimney flue , the
smaller must be : -
ANSWER-above the
larger
What is the minimum pressure requiring piping to be welded
? - ANSWER-5
PSI
What must be provided for bedroom or bathroom heaters ? -
ANSWER-must be
less than 10,000 BTU
/ hr.
EXAM QUESTIONS AND CORRECT ANSWERS (VERIFIED
ANSWERS) ALREADY GRADED A+ / NEWEST EXAM / JUST
RELEASED!! Lp installers practice exam
On CSST tubing of 1.5 and 2 inches having a UV stabilized
jacket , tubing materials appropriate for outdoor conditions and
attached by an appropriate method to the roof structure .
Blocks are to shall be supported on blocks constructed of be
spaced not more than ____ inches apart . The method used to
attach the CSST to the block shall not damage the plastic
coating -
ANSWER-48
On CSST tubing Under 1.5 inch Support : - ANSWER-
Continuously on rail, rail
shall be supported
every 6'
On rooftop units ( or similar ) , the maximum length of
CSST tubing not
supported shall not exceed ____ inches -
ANSWER-30
On gas pressure boosters , a pressure regulator shall be
provided to maintain a
,constant outlet pressure and be installed immediately
downstream of the
booster except when the pressure booster is equipped with an
integral pressure
regulator - ANSWER-
True
The following is required when utilizing gas pressure boosters :
- ANSWER-Must meet product acceptance requirements The
serving gas supplier has written authorization must be located
in well ventilated spaces and be accessible for examination ,
maintenance or replacement
When a draft hood is used , which of the following does
NOT apply ? -
ANSWER-may be installed in a
different room
When a draft hood is used , which of the following does apply -
ANSWER-must be installed without alteration and to
manufacturer's instructions must not be installed in a false
ceiling must not be installed in a manner that will permit a
difference in pressure between the draft hood relief opening
and the combustion air supply
Permits shall be invalid if work is not started within ____ days
of the date of the permit unless holder of permit Can prove that
the failure to start was beyond his / her control - ANSWER-90
, Ön gas piping systems with pressures over 70 PSIG , what
method of joining
must be used ? - ANSWER-
welded
On gas pressure boosters : - ANSWER-If not part of the booster
, the equipment served by the booster shall be equipped with a
manual re - set low gas pressure switch and a check valve
upstream of the booster . bypasses for pressure boosters shall
include a manual shut off and a check valve
Gas pressure booster shall be installed : - ANSWER-on a firm
foundation on
surfaces capable of supporting the load kept free
of vibrations
When 2 vent connectors go into a single chimney flue , the
smaller must be : -
ANSWER-above the
larger
What is the minimum pressure requiring piping to be welded
? - ANSWER-5
PSI
What must be provided for bedroom or bathroom heaters ? -
ANSWER-must be
less than 10,000 BTU
/ hr.
