RVTI LEVEL 1 CERTIFICATION EXAM
QUESTIONS AND CORRECT ANSWERS
LATEST STUDY GUIDE 2025/2026
GRADED A+ .
,1. Propane, as extracted,✔✔ correct answer Is odorless and colorless
2. The device used on a propane tank to reduce pressure is called a✔✔ correct answer Regulator
3. The boiling point for propane is✔✔ correct answer -44*F (-42*C)
4. A property of propane is that, when heated, it✔✔ correct answer Expands
5. When an element or compound changes from the liquid phase to a vapor, it is called✔✔ correct answer Vaporization
6. When working with propane systems, the most important factor to consider is✔✔ correct answer Safety
7. Propane is flammable, can explode with pressure, and is able to✔✔ correct answer Freeze skin
8. It is important to wear gloves when using propane because it can✔✔ correct answer Freeze the skin
9. When working with propane, it is important to wear✔✔ correct answer Appropriate gloves
10. To close a service valve on a propane tank, it is best to tighten the valve with✔✔ correct answer A hand
11. In a shop environment, always wear✔✔ correct answer Safety glasses
12. When transporting or storing containers, always use✔✔ correct answer A POL plug or dust cap
13. Which service valve is mandatory in the RV industry?✔✔ correct answer Type I OPD
14. What is now required to be part of ASME tanks but was not required prior to 1983?✔✔ correct answer OPD
15. The maximum allowable working pressure on an ASME tank can be found on the✔✔ correct answer Data plate
16. The most common securing methods for cylinders include✔✔ correct answer Adjustable straps and T-bars
17. Purging is necessary for✔✔ correct answer New and contaminated containers
18. For purging, you must increase pressure by 15 psi and is the total
number of purgings required.✔✔ correct answer 5
19. 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
20. 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
21. What can occur if a horizontal cylinder is not stored in its proper position?✔✔ correct answer -
Liquid propane can enter the vapor system
, 22. Which of the following is NOT an appurtenance?✔✔ correct answer Mounting bracket
23. Black or green connector knobs on Type 1 OPD service valves indicate✔✔ correct answer Flow rating
24. ASME tanks are usually bolted to✔✔ correct answer The frame
25. On double cylinder assemblies, make sure✔✔ correct answer The cylinder tray is attached to the unit's frame
26. When purging, avoid applying a vacuum to containers that may have con- tained✔✔ correct answer Propane
27. Failure to purge when necessary can cause✔✔ correct answer Odor fade and false pressure
28. Cylinders should be filled using✔✔ correct answer The weight or volumetric method
29. 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
30. The lockup pressure test verifies the pressure at which✔✔ correct answer The regulator locks up when no propane is flowing
31. Immediately after conducting the operating pressure test✔✔ correct answer Close up the gas cock
32. Any regulator pressure over inches WC will require the regulator to be replaced.✔✔
correct answer 14
33. 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
34. What should be documented for a timed pressure drop test with a test apparatus?✔✔ correct answer Inches
of water
35. When adjusting a system regulator, the operating test should show a work- ing pressure of about 11 inches, and
the lockup pressure should never exceed
inches.✔✔ correct answer 14
36. The operating test is used to determine the pressure the regulator is giving when at least of the appliance
load is functioning.✔✔ correct answer 50%
37. A regulator must have a rated capacity equal to or greater than the total Btu/Hr input of✔✔ correct answer
All appliances
38. The RV standard requires that the timed pressure drop test be conducted for at least✔✔ correct answer 3 minutes
QUESTIONS AND CORRECT ANSWERS
LATEST STUDY GUIDE 2025/2026
GRADED A+ .
,1. Propane, as extracted,✔✔ correct answer Is odorless and colorless
2. The device used on a propane tank to reduce pressure is called a✔✔ correct answer Regulator
3. The boiling point for propane is✔✔ correct answer -44*F (-42*C)
4. A property of propane is that, when heated, it✔✔ correct answer Expands
5. When an element or compound changes from the liquid phase to a vapor, it is called✔✔ correct answer Vaporization
6. When working with propane systems, the most important factor to consider is✔✔ correct answer Safety
7. Propane is flammable, can explode with pressure, and is able to✔✔ correct answer Freeze skin
8. It is important to wear gloves when using propane because it can✔✔ correct answer Freeze the skin
9. When working with propane, it is important to wear✔✔ correct answer Appropriate gloves
10. To close a service valve on a propane tank, it is best to tighten the valve with✔✔ correct answer A hand
11. In a shop environment, always wear✔✔ correct answer Safety glasses
12. When transporting or storing containers, always use✔✔ correct answer A POL plug or dust cap
13. Which service valve is mandatory in the RV industry?✔✔ correct answer Type I OPD
14. What is now required to be part of ASME tanks but was not required prior to 1983?✔✔ correct answer OPD
15. The maximum allowable working pressure on an ASME tank can be found on the✔✔ correct answer Data plate
16. The most common securing methods for cylinders include✔✔ correct answer Adjustable straps and T-bars
17. Purging is necessary for✔✔ correct answer New and contaminated containers
18. For purging, you must increase pressure by 15 psi and is the total
number of purgings required.✔✔ correct answer 5
19. 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
20. 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
21. What can occur if a horizontal cylinder is not stored in its proper position?✔✔ correct answer -
Liquid propane can enter the vapor system
, 22. Which of the following is NOT an appurtenance?✔✔ correct answer Mounting bracket
23. Black or green connector knobs on Type 1 OPD service valves indicate✔✔ correct answer Flow rating
24. ASME tanks are usually bolted to✔✔ correct answer The frame
25. On double cylinder assemblies, make sure✔✔ correct answer The cylinder tray is attached to the unit's frame
26. When purging, avoid applying a vacuum to containers that may have con- tained✔✔ correct answer Propane
27. Failure to purge when necessary can cause✔✔ correct answer Odor fade and false pressure
28. Cylinders should be filled using✔✔ correct answer The weight or volumetric method
29. 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
30. The lockup pressure test verifies the pressure at which✔✔ correct answer The regulator locks up when no propane is flowing
31. Immediately after conducting the operating pressure test✔✔ correct answer Close up the gas cock
32. Any regulator pressure over inches WC will require the regulator to be replaced.✔✔
correct answer 14
33. 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
34. What should be documented for a timed pressure drop test with a test apparatus?✔✔ correct answer Inches
of water
35. When adjusting a system regulator, the operating test should show a work- ing pressure of about 11 inches, and
the lockup pressure should never exceed
inches.✔✔ correct answer 14
36. The operating test is used to determine the pressure the regulator is giving when at least of the appliance
load is functioning.✔✔ correct answer 50%
37. A regulator must have a rated capacity equal to or greater than the total Btu/Hr input of✔✔ correct answer
All appliances
38. The RV standard requires that the timed pressure drop test be conducted for at least✔✔ correct answer 3 minutes
