REGULATORS QUESTIONS AND
ANSWERS WITH COMPLETE
SOLUTIONS 100% CORRECT!!
Why is it necessary to purge a brand-new propane container prior to filling?
a. To clear out trapped air and moisture ✔✔
b. To check for gas leaks
c. To increase overall tank capacity
d. To lubricate internal valves
Answer: a. To clear out trapped air and moisture ✔✔
═════════════════════════════════════════════
Which feature signifies that a portable propane cylinder is configured for
liquid phase withdrawal?
a. The presence of a standard POL outlet
b. An inverted mounting bracket
c. Any valve connection fittings other than a standard POL fitting ✔✔
d. A painted red neck collar
Answer: c. Any valve connection fittings other than a standard POL fitting ✔✔
═════════════════════════════════════════════
What step must a gas service technician take upon identifying a gas meter and
regulator assembly that lacks required physical impact protection?
a. Install temporary warning tape
b. Contact and report the hazard to the gas supply utility ✔✔
c. Immediately shut off the main gas supply
d. Relocate the meter assembly
Answer: b. Contact and report the hazard to the gas supply utility ✔✔
═════════════════════════════════════════════
What primary function does a monitor regulator perform within a dual-stage
pressure regulation system?
a. It acts as an active backup control to step in if the primary worker regulator fails
✔✔
b. It measures total gas volume consumed
c. It vents excess pressure directly outside
d. It prevents backflow into the supply line
Answer: a. It acts as an active backup control to step in if the primary worker
regulator fails ✔✔
═════════════════════════════════════════════
, What is the maximum allowable operating gas pressure inside a recreational
vehicle piping system?
a. 0.5 PSI
b. 11" W.C.
c. 13" W.C. ✔✔
d. 2 PSI
Answer: c. 13" W.C. ✔✔
═════════════════════════════════════════════
What operational issue does a surge arrester prevent in a gas pressure control
assembly?
a. Freezing of the internal orifice
b. Rapid, uncontrolled oscillation or movement of the regulator diaphragm ✔✔
c. Excess gas accumulation in the vent line
d. Overpressurization of the upstream line
Answer: b. Rapid, uncontrolled oscillation or movement of the regulator
diaphragm ✔✔
═════════════════════════════════════════════
What is the maximum permitted system pressure for propane gas lines fed by
a vaporizer system?
a. 100 PSI
b. 175 PSI
c. 215 PSI ✔✔
d. 250 PSI
Answer: c. 215 PSI ✔✔
How could a gas technician tell if a second stage regulator on a propane system is
adjusted to compensate for undersized piping in the customers system -ANSWER
✔✔High lockout pressure or High downstream pressure
When may a first stage regulator on a propane system be installed indoors -
ANSWER ✔✔never
Propane containers on a recreational vehicle show be mounted where -ANSWER
✔✔On the A-frame or at front of trailer
what is the typical Appliance burner pressure on a residential propane system -
ANSWER ✔✔11" W.C.
ANSWERS WITH COMPLETE
SOLUTIONS 100% CORRECT!!
Why is it necessary to purge a brand-new propane container prior to filling?
a. To clear out trapped air and moisture ✔✔
b. To check for gas leaks
c. To increase overall tank capacity
d. To lubricate internal valves
Answer: a. To clear out trapped air and moisture ✔✔
═════════════════════════════════════════════
Which feature signifies that a portable propane cylinder is configured for
liquid phase withdrawal?
a. The presence of a standard POL outlet
b. An inverted mounting bracket
c. Any valve connection fittings other than a standard POL fitting ✔✔
d. A painted red neck collar
Answer: c. Any valve connection fittings other than a standard POL fitting ✔✔
═════════════════════════════════════════════
What step must a gas service technician take upon identifying a gas meter and
regulator assembly that lacks required physical impact protection?
a. Install temporary warning tape
b. Contact and report the hazard to the gas supply utility ✔✔
c. Immediately shut off the main gas supply
d. Relocate the meter assembly
Answer: b. Contact and report the hazard to the gas supply utility ✔✔
═════════════════════════════════════════════
What primary function does a monitor regulator perform within a dual-stage
pressure regulation system?
a. It acts as an active backup control to step in if the primary worker regulator fails
✔✔
b. It measures total gas volume consumed
c. It vents excess pressure directly outside
d. It prevents backflow into the supply line
Answer: a. It acts as an active backup control to step in if the primary worker
regulator fails ✔✔
═════════════════════════════════════════════
, What is the maximum allowable operating gas pressure inside a recreational
vehicle piping system?
a. 0.5 PSI
b. 11" W.C.
c. 13" W.C. ✔✔
d. 2 PSI
Answer: c. 13" W.C. ✔✔
═════════════════════════════════════════════
What operational issue does a surge arrester prevent in a gas pressure control
assembly?
a. Freezing of the internal orifice
b. Rapid, uncontrolled oscillation or movement of the regulator diaphragm ✔✔
c. Excess gas accumulation in the vent line
d. Overpressurization of the upstream line
Answer: b. Rapid, uncontrolled oscillation or movement of the regulator
diaphragm ✔✔
═════════════════════════════════════════════
What is the maximum permitted system pressure for propane gas lines fed by
a vaporizer system?
a. 100 PSI
b. 175 PSI
c. 215 PSI ✔✔
d. 250 PSI
Answer: c. 215 PSI ✔✔
How could a gas technician tell if a second stage regulator on a propane system is
adjusted to compensate for undersized piping in the customers system -ANSWER
✔✔High lockout pressure or High downstream pressure
When may a first stage regulator on a propane system be installed indoors -
ANSWER ✔✔never
Propane containers on a recreational vehicle show be mounted where -ANSWER
✔✔On the A-frame or at front of trailer
what is the typical Appliance burner pressure on a residential propane system -
ANSWER ✔✔11" W.C.
