Liquified Petroleum Gas (LPG) - Texas Master
Plumber Exam Prep UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
Piping Material:
1. ______________
2. ______________
3. ______________
4. ______________
5. ______________
And ________________________ only above ground. - CORRECT
ANSWER polyethylene - copper tubing - steel - wrought iron - ductile iron -
aluminum-alloy
Piping Joints:
1. Steel or ________________ - threaded, ______________, ______________
2. Unions & __________________ only in open space (not in walls)
3. Copper - ______________ type or _____________
4. Joint compound on ______________ thread only & of type ________________ to LPG -
CORRECT ANSWER wrought iron - welded - flanged - swing joints - flare - brazed -
male - resistant
Piping Installation:
1. In ____________ piping, change of direction may be made by ___________, made only
w/____________ equipment or fittings.
2. Piping must be graded ________ inch per ______ feet.
3. Test with _____________, air or __________________ (never with oxygen).
4. Underground piping buried _______ inches when possible.
Plumber Exam Prep UPDATED ACTUAL
QUESTIONS AND CORRECT ANSWERS
Piping Material:
1. ______________
2. ______________
3. ______________
4. ______________
5. ______________
And ________________________ only above ground. - CORRECT
ANSWER polyethylene - copper tubing - steel - wrought iron - ductile iron -
aluminum-alloy
Piping Joints:
1. Steel or ________________ - threaded, ______________, ______________
2. Unions & __________________ only in open space (not in walls)
3. Copper - ______________ type or _____________
4. Joint compound on ______________ thread only & of type ________________ to LPG -
CORRECT ANSWER wrought iron - welded - flanged - swing joints - flare - brazed -
male - resistant
Piping Installation:
1. In ____________ piping, change of direction may be made by ___________, made only
w/____________ equipment or fittings.
2. Piping must be graded ________ inch per ______ feet.
3. Test with _____________, air or __________________ (never with oxygen).
4. Underground piping buried _______ inches when possible.
