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Propane Fill Certification Practice Test
Questions with Correct Answers for
Specific Exam Mail
Characteristics of Propane
Ans: 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
Ans: 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
Ans: W.C. (water capacity) x .42 + T.W. (tare weight)
What affect anhydrous ammonia has on brass
Pretest - Stuvia US
, 2
Ans: 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
Ans: 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.
Pretest - Stuvia US
Propane Fill Certification Practice Test
Questions with Correct Answers for
Specific Exam Mail
Characteristics of Propane
Ans: 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
Ans: 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
Ans: W.C. (water capacity) x .42 + T.W. (tare weight)
What affect anhydrous ammonia has on brass
Pretest - Stuvia US
, 2
Ans: 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
Ans: 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.
Pretest - Stuvia US
