RVTI LEVEL 1 CERTIFICATION EXAM QUESTIONS AND ANSWERS
Propane, as extracted, - CORRECT ANSWER✅✅Is odorless and colorless
The device used on a propane tank to reduce pressure is called a - CORRECT ANSWER✅✅Regulator
The boiling point for propane is - CORRECT ANSWER✅✅-44*F (-42*C)
A property of propane is that, when heated, it - CORRECT ANSWER✅✅Expands
When an element or compound changes from the liquid phase to a vapor, it is called - CORRECT
ANSWER✅✅Vaporization
When working with propane systems, the most important factor to consider is - CORRECT
ANSWER✅✅Safety
Propane is flammable, can explode with pressure, and is able to - CORRECT ANSWER✅✅Freeze skin
It is important to wear gloves when using propane because it can - CORRECT ANSWER✅✅Freeze the
skin
When working with propane, it is important to wear - CORRECT ANSWER✅✅Appropriate gloves
To close a service valve on a propane tank, it is best to tighten the valve with - CORRECT ANSWER✅✅A
hand
In a shop environment, always wear - CORRECT ANSWER✅✅Safety glasses
When transporting or storing containers, always use - CORRECT ANSWER✅✅A POL plug or dust cap
,Which service valve is mandatory in the RV industry? - CORRECT ANSWER✅✅Type I OPD
What is now required to be part of ASME tanks but was not required prior to 1983? - CORRECT
ANSWER✅✅OPD
The maximum allowable working pressure on an ASME tank can be found on the - CORRECT
ANSWER✅✅Data plate
The most common securing methods for cylinders include - CORRECT ANSWER✅✅Adjustable straps
and T-bars
Purging is necessary for - CORRECT ANSWER✅✅New and contaminated containers
For purging, you must increase pressure by 15 psi and _____ is the total number of purgings required. -
CORRECT ANSWER✅✅5
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? - CORRECT ANSWER✅✅39 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 - CORRECT ANSWER✅✅375 psi
What can occur if a horizontal cylinder is not stored in its proper position? - CORRECT
ANSWER✅✅Liquid propane can enter the vapor system
Which of the following is NOT an appurtenance? - CORRECT ANSWER✅✅Mounting bracket
Black or green connector knobs on Type 1 OPD service valves indicate - CORRECT ANSWER✅✅Flow
rating
ASME tanks are usually bolted to - CORRECT ANSWER✅✅The frame
, On double cylinder assemblies, make sure - CORRECT ANSWER✅✅The cylinder tray is attached to the
unit's frame
When purging, avoid applying a vacuum to containers that may have contained - CORRECT
ANSWER✅✅Propane
Failure to purge when necessary can cause - CORRECT ANSWER✅✅Odor fade and false pressure
Cylinders should be filled using - CORRECT ANSWER✅✅The 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. - CORRECT ANSWER✅✅25
The lockup pressure test verifies the pressure at which - CORRECT ANSWER✅✅The regulator locks up
when no propane is flowing
Immediately after conducting the operating pressure test - CORRECT ANSWER✅✅Close up the gas cock
Any regulator pressure over _____ inches WC will require the regulator to be replaced. - CORRECT
ANSWER✅✅14
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 _____. - CORRECT ANSWER✅✅Repeat
the test...locate and repair leal, and retest
What should be documented for a timed pressure drop test with a test apparatus? - CORRECT
ANSWER✅✅Inches of water
When adjusting a system regulator, the operating test should show a working pressure of about 11
inches, and the lockup pressure should never exceed _____ inches. - CORRECT ANSWER✅✅14
Propane, as extracted, - CORRECT ANSWER✅✅Is odorless and colorless
The device used on a propane tank to reduce pressure is called a - CORRECT ANSWER✅✅Regulator
The boiling point for propane is - CORRECT ANSWER✅✅-44*F (-42*C)
A property of propane is that, when heated, it - CORRECT ANSWER✅✅Expands
When an element or compound changes from the liquid phase to a vapor, it is called - CORRECT
ANSWER✅✅Vaporization
When working with propane systems, the most important factor to consider is - CORRECT
ANSWER✅✅Safety
Propane is flammable, can explode with pressure, and is able to - CORRECT ANSWER✅✅Freeze skin
It is important to wear gloves when using propane because it can - CORRECT ANSWER✅✅Freeze the
skin
When working with propane, it is important to wear - CORRECT ANSWER✅✅Appropriate gloves
To close a service valve on a propane tank, it is best to tighten the valve with - CORRECT ANSWER✅✅A
hand
In a shop environment, always wear - CORRECT ANSWER✅✅Safety glasses
When transporting or storing containers, always use - CORRECT ANSWER✅✅A POL plug or dust cap
,Which service valve is mandatory in the RV industry? - CORRECT ANSWER✅✅Type I OPD
What is now required to be part of ASME tanks but was not required prior to 1983? - CORRECT
ANSWER✅✅OPD
The maximum allowable working pressure on an ASME tank can be found on the - CORRECT
ANSWER✅✅Data plate
The most common securing methods for cylinders include - CORRECT ANSWER✅✅Adjustable straps
and T-bars
Purging is necessary for - CORRECT ANSWER✅✅New and contaminated containers
For purging, you must increase pressure by 15 psi and _____ is the total number of purgings required. -
CORRECT ANSWER✅✅5
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? - CORRECT ANSWER✅✅39 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 - CORRECT ANSWER✅✅375 psi
What can occur if a horizontal cylinder is not stored in its proper position? - CORRECT
ANSWER✅✅Liquid propane can enter the vapor system
Which of the following is NOT an appurtenance? - CORRECT ANSWER✅✅Mounting bracket
Black or green connector knobs on Type 1 OPD service valves indicate - CORRECT ANSWER✅✅Flow
rating
ASME tanks are usually bolted to - CORRECT ANSWER✅✅The frame
, On double cylinder assemblies, make sure - CORRECT ANSWER✅✅The cylinder tray is attached to the
unit's frame
When purging, avoid applying a vacuum to containers that may have contained - CORRECT
ANSWER✅✅Propane
Failure to purge when necessary can cause - CORRECT ANSWER✅✅Odor fade and false pressure
Cylinders should be filled using - CORRECT ANSWER✅✅The 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. - CORRECT ANSWER✅✅25
The lockup pressure test verifies the pressure at which - CORRECT ANSWER✅✅The regulator locks up
when no propane is flowing
Immediately after conducting the operating pressure test - CORRECT ANSWER✅✅Close up the gas cock
Any regulator pressure over _____ inches WC will require the regulator to be replaced. - CORRECT
ANSWER✅✅14
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 _____. - CORRECT ANSWER✅✅Repeat
the test...locate and repair leal, and retest
What should be documented for a timed pressure drop test with a test apparatus? - CORRECT
ANSWER✅✅Inches of water
When adjusting a system regulator, the operating test should show a working pressure of about 11
inches, and the lockup pressure should never exceed _____ inches. - CORRECT ANSWER✅✅14
