RVTI LEVEL 1 CERTIFICATION
QUESTIONS & ANSWERS(RATED A+)
Propane, as extracted, - ANSWERIs odorless and colorless
The device used on a propane tank to reduce pressure is called a - ANSWERRegulator
The boiling point for propane is - ANSWER-44*F (-42*C)
A property of propane is that, when heated, it - ANSWERExpands
When an element or compound changes from the liquid phase to a vapor, it is called -
ANSWERVaporization
When working with propane systems, the most important factor to consider is -
ANSWERSafety
Propane is flammable, can explode with pressure, and is able to - ANSWERFreeze skin
It is important to wear gloves when using propane because it can - ANSWERFreeze the
skin
When working with propane, it is important to wear - ANSWERAppropriate gloves
To close a service valve on a propane tank, it is best to tighten the valve with -
ANSWERA hand
In a shop environment, always wear - ANSWERSafety glasses
When transporting or storing containers, always use - ANSWERA POL plug or dust cap
Which service valve is mandatory in the RV industry? - ANSWERType I OPD
What is now required to be part of ASME tanks but was not required prior to 1983? -
ANSWEROPD
The maximum allowable working pressure on an ASME tank can be found on the -
ANSWERData plate
The most common securing methods for cylinders include - ANSWERAdjustable straps
and T-bars
Purging is necessary for - ANSWERNew and contaminated containers
, For purging, you must increase pressure by 15 psi and _____ is the total number of
purgings required. - ANSWER5
The tare weight of a cylinder is 19 pounds. The propane capacity is 20 pounds. To how
many pounds should the cylinder be filled and to what level? - ANSWER39 pounds;
80% level
The relief valve will function if the pressure of the compressed air plus the pressure of
the propane meets or exceeds the relief valve setting of - ANSWER375 psi
What can occur if a horizontal cylinder is not stored in its proper position? -
ANSWERLiquid propane can enter the vapor system
Which of the following is NOT an appurtenance? - ANSWERMounting bracket
Black or green connector knobs on Type 1 OPD service valves indicate - ANSWERFlow
rating
ASME tanks are usually bolted to - ANSWERThe frame
On double cylinder assemblies, make sure - ANSWERThe cylinder tray is attached to
the unit's frame
When purging, avoid applying a vacuum to containers that may have contained -
ANSWERPropane
Failure to purge when necessary can cause - ANSWEROdor fade and false pressure
Cylinders should be filled using - ANSWERThe weight or volumetric method
When releasing an air/gas mixture of propane, ensure a minimum of _____ feet in every
direction between the container and source of ignition. - ANSWER25
The lockup pressure test verifies the pressure at which - ANSWERThe regulator locks
up when no propane is flowing
Immediately after conducting the operating pressure test - ANSWERClose up the gas
cock
Any regulator pressure over _____ inches WC will require the regulator to be replaced. -
ANSWER14
During a timed pressure drop test, no pressure drop should be detected. If there is a
pressure increase due to thermal expansion _____, and if there is a pressure drop
_____. - ANSWERRepeat the test...locate and repair leal, and retest
QUESTIONS & ANSWERS(RATED A+)
Propane, as extracted, - ANSWERIs odorless and colorless
The device used on a propane tank to reduce pressure is called a - ANSWERRegulator
The boiling point for propane is - ANSWER-44*F (-42*C)
A property of propane is that, when heated, it - ANSWERExpands
When an element or compound changes from the liquid phase to a vapor, it is called -
ANSWERVaporization
When working with propane systems, the most important factor to consider is -
ANSWERSafety
Propane is flammable, can explode with pressure, and is able to - ANSWERFreeze skin
It is important to wear gloves when using propane because it can - ANSWERFreeze the
skin
When working with propane, it is important to wear - ANSWERAppropriate gloves
To close a service valve on a propane tank, it is best to tighten the valve with -
ANSWERA hand
In a shop environment, always wear - ANSWERSafety glasses
When transporting or storing containers, always use - ANSWERA POL plug or dust cap
Which service valve is mandatory in the RV industry? - ANSWERType I OPD
What is now required to be part of ASME tanks but was not required prior to 1983? -
ANSWEROPD
The maximum allowable working pressure on an ASME tank can be found on the -
ANSWERData plate
The most common securing methods for cylinders include - ANSWERAdjustable straps
and T-bars
Purging is necessary for - ANSWERNew and contaminated containers
, For purging, you must increase pressure by 15 psi and _____ is the total number of
purgings required. - ANSWER5
The tare weight of a cylinder is 19 pounds. The propane capacity is 20 pounds. To how
many pounds should the cylinder be filled and to what level? - ANSWER39 pounds;
80% level
The relief valve will function if the pressure of the compressed air plus the pressure of
the propane meets or exceeds the relief valve setting of - ANSWER375 psi
What can occur if a horizontal cylinder is not stored in its proper position? -
ANSWERLiquid propane can enter the vapor system
Which of the following is NOT an appurtenance? - ANSWERMounting bracket
Black or green connector knobs on Type 1 OPD service valves indicate - ANSWERFlow
rating
ASME tanks are usually bolted to - ANSWERThe frame
On double cylinder assemblies, make sure - ANSWERThe cylinder tray is attached to
the unit's frame
When purging, avoid applying a vacuum to containers that may have contained -
ANSWERPropane
Failure to purge when necessary can cause - ANSWEROdor fade and false pressure
Cylinders should be filled using - ANSWERThe weight or volumetric method
When releasing an air/gas mixture of propane, ensure a minimum of _____ feet in every
direction between the container and source of ignition. - ANSWER25
The lockup pressure test verifies the pressure at which - ANSWERThe regulator locks
up when no propane is flowing
Immediately after conducting the operating pressure test - ANSWERClose up the gas
cock
Any regulator pressure over _____ inches WC will require the regulator to be replaced. -
ANSWER14
During a timed pressure drop test, no pressure drop should be detected. If there is a
pressure increase due to thermal expansion _____, and if there is a pressure drop
_____. - ANSWERRepeat the test...locate and repair leal, and retest
