LP INSTALLERS PRACTICE EXAM||COMPLETE GUIDE
WITH VERIFIED ANSWERS||GRADED
Where Do You File A Permit For Work To Be Done In Buildings Owned Or Used By The State Of Mass ?
ANS: State Inspector
When Pressure Testing A System Over 1 Million Btu , Which Doesn't Apply ?
ANS: Test 1 Hour For Each 200 ' Of Developed Length
When A Vent On A Regulator , What Is The Horizontal Distance From The Discharge Of The Vent To An
Opening Located Below ?
ANS: 3 Feet
How Many Cycles Do You Need To Keep Continuing Education Certificates ?
ANS: 3
On An LP - Gas System , What Is Considered To Be The " Point Of Delivery " ?
ANS: Outlet Of 1st Stage
How Fast Does A Spill Switch Need To Work ?
ANS: 30 Seconds
,If The Firing Rate In A Combustion Chamber Exceeds 1,000,000 BTU , But Less Than 5,000,000 , What Is
Required ?
ANS: 2 Shut Offs In Series , Or One With Overtravel Interlock
When Using Gas Pressure Boosters , Which Of The Following Apply ?
ANS: All Must Meet Product - Acceptance Requirements The Serving Gas Supplier Has Provided Written
Authorization Gas Pressure Boosters Shall Be Located In Well - Ventilated Spaces , And Readily
Accessible
What Percentage Of Vent Height Can The Length Of A Single - Walled Vent Connector Be ?
ANS: 75 %
What Percentage Of Vent Height Can The Length Of Type B , Double - Walled Vent Connector Be ?
ANS: 100 %
What Is The Max Pressure For Natural Gas In A House ?
ANS: 14 " WC
Within How Many Feet Of An Appliance Does The Shut Off Need To Be ?
ANS: 6'
How Far Does A Roof Hatch Need To Be From The Edge Of A Roof To Not Need Guardrails ?
ANS: 6'
, What Is The Maximum Pressure Allowed For CSST .
ANS: 14 " WC
If The Maximum Firing Rate Per Combustion Chamber Is ____ , BTU Or Greater , Gas Pressure
Supervision Provided By Listed Pressure Switches Or Combination High / Low Switch , Interlocked To
Accomplish Safety Shutdown In Event Of Either High Or Low Pressure .
ANS: 1,000,000
Max Spacing For Support For CSST On A Rooftop Is Every .
ANS: Blocks Used For Support 48 "
A Vacuum Is Considered To Be Any Pressure That Is
ANS: Less Than Atmospheric Pressure (14.7 Psi)
If An UG Gas Line Runs Under A Building , What Is Required ?
ANS: Conduit Must Terminate Outside Building ,Sleeved In Same Material As Pipe Terminate 4 ' Above
Grade
Apprentice Plumber , Apprentice Gas Fitter , Or MA Lic . LP Installer
ANS: Must Show License When Asked By The Inspector
What Is Not An Acceptable Material For LPG Piping
ANS: Butylenes
WITH VERIFIED ANSWERS||GRADED
Where Do You File A Permit For Work To Be Done In Buildings Owned Or Used By The State Of Mass ?
ANS: State Inspector
When Pressure Testing A System Over 1 Million Btu , Which Doesn't Apply ?
ANS: Test 1 Hour For Each 200 ' Of Developed Length
When A Vent On A Regulator , What Is The Horizontal Distance From The Discharge Of The Vent To An
Opening Located Below ?
ANS: 3 Feet
How Many Cycles Do You Need To Keep Continuing Education Certificates ?
ANS: 3
On An LP - Gas System , What Is Considered To Be The " Point Of Delivery " ?
ANS: Outlet Of 1st Stage
How Fast Does A Spill Switch Need To Work ?
ANS: 30 Seconds
,If The Firing Rate In A Combustion Chamber Exceeds 1,000,000 BTU , But Less Than 5,000,000 , What Is
Required ?
ANS: 2 Shut Offs In Series , Or One With Overtravel Interlock
When Using Gas Pressure Boosters , Which Of The Following Apply ?
ANS: All Must Meet Product - Acceptance Requirements The Serving Gas Supplier Has Provided Written
Authorization Gas Pressure Boosters Shall Be Located In Well - Ventilated Spaces , And Readily
Accessible
What Percentage Of Vent Height Can The Length Of A Single - Walled Vent Connector Be ?
ANS: 75 %
What Percentage Of Vent Height Can The Length Of Type B , Double - Walled Vent Connector Be ?
ANS: 100 %
What Is The Max Pressure For Natural Gas In A House ?
ANS: 14 " WC
Within How Many Feet Of An Appliance Does The Shut Off Need To Be ?
ANS: 6'
How Far Does A Roof Hatch Need To Be From The Edge Of A Roof To Not Need Guardrails ?
ANS: 6'
, What Is The Maximum Pressure Allowed For CSST .
ANS: 14 " WC
If The Maximum Firing Rate Per Combustion Chamber Is ____ , BTU Or Greater , Gas Pressure
Supervision Provided By Listed Pressure Switches Or Combination High / Low Switch , Interlocked To
Accomplish Safety Shutdown In Event Of Either High Or Low Pressure .
ANS: 1,000,000
Max Spacing For Support For CSST On A Rooftop Is Every .
ANS: Blocks Used For Support 48 "
A Vacuum Is Considered To Be Any Pressure That Is
ANS: Less Than Atmospheric Pressure (14.7 Psi)
If An UG Gas Line Runs Under A Building , What Is Required ?
ANS: Conduit Must Terminate Outside Building ,Sleeved In Same Material As Pipe Terminate 4 ' Above
Grade
Apprentice Plumber , Apprentice Gas Fitter , Or MA Lic . LP Installer
ANS: Must Show License When Asked By The Inspector
What Is Not An Acceptable Material For LPG Piping
ANS: Butylenes
