RVTI Level 1 Certification exam
questions and answers
Propane, as extracted, -ANSIs odorless and colorless
The device used on a propane tank to reduce pressure is called a -ANSRegulator
The boiling point for propane is -ANS-44*F (-42*C)
A property of propane is that, when heated, it -ANSExpands
When an element or compound changes from the liquid phase to a vapor, it is called -
ANSVaporization
When working with propane systems, the most important factor to consider is -
ANSSafety
Propane is flammable, can explode with pressure, and is able to -ANSFreeze skin
It is important to wear gloves when using propane because it can -ANSFreeze the skin
When working with propane, it is important to wear -ANSAppropriate gloves
To close a service valve on a propane tank, it is best to tighten the valve with -ANSA
hand
In a shop environment, always wear -ANSSafety glasses
When transporting or storing containers, always use -ANSA POL plug or dust cap
Which service valve is mandatory in the RV industry? -ANSType I OPD
What is now required to be part of ASME tanks but was not required prior to 1983? -
ANSOPD
The maximum allowable working pressure on an ASME tank can be found on the -
ANSData plate
The most common securing methods for cylinders include -ANSAdjustable straps and
T-bars
Purging is necessary for -ANSNew and contaminated containers
, For purging, you must increase pressure by 15 psi and _____ is the total number of
purgings required. -ANS5
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? -ANS39 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 -ANS375 psi
What can occur if a horizontal cylinder is not stored in its proper position? -ANSLiquid
propane can enter the vapor system
Which of the following is NOT an appurtenance? -ANSMounting bracket
Black or green connector knobs on Type 1 OPD service valves indicate -ANSFlow
rating
ASME tanks are usually bolted to -ANSThe frame
On double cylinder assemblies, make sure -ANSThe cylinder tray is attached to the
unit's frame
When purging, avoid applying a vacuum to containers that may have contained -
ANSPropane
Failure to purge when necessary can cause -ANSOdor fade and false pressure
Cylinders should be filled using -ANSThe 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. -ANS25
The lockup pressure test verifies the pressure at which -ANSThe regulator locks up
when no propane is flowing
Immediately after conducting the operating pressure test -ANSClose up the gas cock
Any regulator pressure over _____ inches WC will require the regulator to be replaced. -
ANS14
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
_____. -ANSRepeat the test...locate and repair leal, and retest
questions and answers
Propane, as extracted, -ANSIs odorless and colorless
The device used on a propane tank to reduce pressure is called a -ANSRegulator
The boiling point for propane is -ANS-44*F (-42*C)
A property of propane is that, when heated, it -ANSExpands
When an element or compound changes from the liquid phase to a vapor, it is called -
ANSVaporization
When working with propane systems, the most important factor to consider is -
ANSSafety
Propane is flammable, can explode with pressure, and is able to -ANSFreeze skin
It is important to wear gloves when using propane because it can -ANSFreeze the skin
When working with propane, it is important to wear -ANSAppropriate gloves
To close a service valve on a propane tank, it is best to tighten the valve with -ANSA
hand
In a shop environment, always wear -ANSSafety glasses
When transporting or storing containers, always use -ANSA POL plug or dust cap
Which service valve is mandatory in the RV industry? -ANSType I OPD
What is now required to be part of ASME tanks but was not required prior to 1983? -
ANSOPD
The maximum allowable working pressure on an ASME tank can be found on the -
ANSData plate
The most common securing methods for cylinders include -ANSAdjustable straps and
T-bars
Purging is necessary for -ANSNew and contaminated containers
, For purging, you must increase pressure by 15 psi and _____ is the total number of
purgings required. -ANS5
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? -ANS39 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 -ANS375 psi
What can occur if a horizontal cylinder is not stored in its proper position? -ANSLiquid
propane can enter the vapor system
Which of the following is NOT an appurtenance? -ANSMounting bracket
Black or green connector knobs on Type 1 OPD service valves indicate -ANSFlow
rating
ASME tanks are usually bolted to -ANSThe frame
On double cylinder assemblies, make sure -ANSThe cylinder tray is attached to the
unit's frame
When purging, avoid applying a vacuum to containers that may have contained -
ANSPropane
Failure to purge when necessary can cause -ANSOdor fade and false pressure
Cylinders should be filled using -ANSThe 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. -ANS25
The lockup pressure test verifies the pressure at which -ANSThe regulator locks up
when no propane is flowing
Immediately after conducting the operating pressure test -ANSClose up the gas cock
Any regulator pressure over _____ inches WC will require the regulator to be replaced. -
ANS14
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
_____. -ANSRepeat the test...locate and repair leal, and retest
