NC PLUMBING LICENSE EXAM
QUESTIONS WITH 100% CORRECT
ANSWERS L LATEST VERSION 2025/2026.
Osha 300 A must be posted when? - ANS between February 1st and April 30th
If you remove 2 sq ft or more of sheetrock from a home built prior to 1978, what must you
provide the home owner? - ANS Information on protection against lead paint.
Final Inspection is due within how many days of work completion? - ANS 10
You must renew your license in ___ days or within ___ years. - ANS 1094 or 3
Why do you need a license? - ANS to protect the public
DWV Copper - ANS Yellow Writing
Type K Copper - ANS Green Writing
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Type M Copper - ANS Red Writing
Type L Copper - ANS Blue Writing
What is the purpose of Pipe Dope? - ANS seal and lubricate
When does your license expire? - ANS The last day of December
How many working hours are there in a week? - ANS 168
Purpose of Flux - ANS Clean and protect
Purpose of a Trap - ANS Keep Gas/Sewer from coming in the room
Purpose of a Vent - ANS to protect the trap
Seal - ANS Tight/Gas Tight
H2 Heating License - ANS A/C over 15 tons
H1 Heating License - ANS Wet/Steam Heat to heat Building
How many licenses can you hold? - ANS 1
Each location of your company must have what? - ANS A license holder
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
QUESTIONS WITH 100% CORRECT
ANSWERS L LATEST VERSION 2025/2026.
Osha 300 A must be posted when? - ANS between February 1st and April 30th
If you remove 2 sq ft or more of sheetrock from a home built prior to 1978, what must you
provide the home owner? - ANS Information on protection against lead paint.
Final Inspection is due within how many days of work completion? - ANS 10
You must renew your license in ___ days or within ___ years. - ANS 1094 or 3
Why do you need a license? - ANS to protect the public
DWV Copper - ANS Yellow Writing
Type K Copper - ANS Green Writing
1 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
, Type M Copper - ANS Red Writing
Type L Copper - ANS Blue Writing
What is the purpose of Pipe Dope? - ANS seal and lubricate
When does your license expire? - ANS The last day of December
How many working hours are there in a week? - ANS 168
Purpose of Flux - ANS Clean and protect
Purpose of a Trap - ANS Keep Gas/Sewer from coming in the room
Purpose of a Vent - ANS to protect the trap
Seal - ANS Tight/Gas Tight
H2 Heating License - ANS A/C over 15 tons
H1 Heating License - ANS Wet/Steam Heat to heat Building
How many licenses can you hold? - ANS 1
Each location of your company must have what? - ANS A license holder
2 @COPYRIGHT 2025/2026 ALLRIGHTS RESERVED.
