PROPANE FILL CERTIFICATION PRACTICE TEST EXAM
QUESTIONS AND ANSWERS
Characteristics of Propane - CORRECT ANSWER✅✅is a colorless and odorless gas. Since propane is
odorless, it is intentionally odorized so leaks can be detected. The odor is similar to rotten eggs.
What affect ambient temperatures have on the expansion of propane - CORRECT ANSWER✅✅Propane
volume rises as temperature rises and falls as temperature falls. Being temperature dependent, propane
becomes more dense as temperature falls and expands as temperature increases.
The formula used to set the scale of proper filling - CORRECT ANSWER✅✅W.C. (water capacity) x .42 +
T.W. (tare weight)
What affect anhydrous ammonia has on brass - CORRECT ANSWER✅✅NH3 is corrosive to brass, copper
and galvanized components/fittings. When these components/fittings come in contact with NH3 liquid
or vapor, the metal will corrode and will fail.
The propane procedures for filling an rv - CORRECT ANSWER✅✅Set the propane meter to zero.
Connect the motor fuel hose to the tank fill valve.
Open the vent value on the fixed maximum liquid level gauge.
Start the pump and slowly open the hose and valve.
When a steady white mist is emitted, close the hose and valve.
Close the fixed maximum liquid level gauge.
Shut off the pump.
Slowly loosen the filler adapter to prevent any loose propane. Wait until propane stops venting.
Disconnect and stow the hose assembly once venting has stopped.
Replace the filler valve cap.
Proper procedures to follow in the event of a fire - CORRECT ANSWER✅✅Do not extinguish fire until
leak is stopped.
Small fire- Dry chemical or CO2
QUESTIONS AND ANSWERS
Characteristics of Propane - CORRECT ANSWER✅✅is a colorless and odorless gas. Since propane is
odorless, it is intentionally odorized so leaks can be detected. The odor is similar to rotten eggs.
What affect ambient temperatures have on the expansion of propane - CORRECT ANSWER✅✅Propane
volume rises as temperature rises and falls as temperature falls. Being temperature dependent, propane
becomes more dense as temperature falls and expands as temperature increases.
The formula used to set the scale of proper filling - CORRECT ANSWER✅✅W.C. (water capacity) x .42 +
T.W. (tare weight)
What affect anhydrous ammonia has on brass - CORRECT ANSWER✅✅NH3 is corrosive to brass, copper
and galvanized components/fittings. When these components/fittings come in contact with NH3 liquid
or vapor, the metal will corrode and will fail.
The propane procedures for filling an rv - CORRECT ANSWER✅✅Set the propane meter to zero.
Connect the motor fuel hose to the tank fill valve.
Open the vent value on the fixed maximum liquid level gauge.
Start the pump and slowly open the hose and valve.
When a steady white mist is emitted, close the hose and valve.
Close the fixed maximum liquid level gauge.
Shut off the pump.
Slowly loosen the filler adapter to prevent any loose propane. Wait until propane stops venting.
Disconnect and stow the hose assembly once venting has stopped.
Replace the filler valve cap.
Proper procedures to follow in the event of a fire - CORRECT ANSWER✅✅Do not extinguish fire until
leak is stopped.
Small fire- Dry chemical or CO2
