RVTI (MECHANICAL ENGINEERING) LEVEL 1
CERTIFICATION STUDY GUIDE WITH COMPLETE
SOLUTION!!
What are the natural characteristics of propane when extracted?
✅ It has no color and no odor.
Which device on a propane tank lowers the pressure before use?
✅ The regulator.
At what temperature does propane boil?
✅ –44°F (–42°C).
What happens to propane when exposed to heat?
✅ It expands.
What is it called when a liquid changes into a vapor state?
✅ Vaporization.
The number one priority when handling propane systems is:
✅ Safety.
Why is propane dangerous when mishandled?
,✅ It is highly flammable, can explode under pressure, and causes skin freezing on
contact.
Why should gloves be worn when handling propane?
✅ To protect against skin freeze.
What type of gloves are recommended when working with propane?
✅ Proper protective gloves.
How should the service valve on a propane tank be closed?
✅ By hand tightening.
What should always be worn in a workshop environment when dealing with
propane?
✅ Safety glasses.
How should propane containers be stored or transported?
✅ With a POL plug or dust cap in place.
Which type of service valve is mandatory in the RV industry?
✅ Type I OPD valve.
What became a requirement on ASME tanks after 1983?
, ✅ The OPD (Overfill Protection Device).
Where is the maximum working pressure of an ASME tank indicated?
✅ On the tank’s data plate.
What are the common ways to secure propane cylinders?
✅ Adjustable straps or T-bars.
Why is purging necessary?
✅ To clean new or contaminated cylinders.
How many purges are needed when increasing pressure by 15 psi during purging?
✅ Five purges.
A propane cylinder has a tare weight of 19 lbs and capacity of 20 lbs. What is the
proper fill level?
✅ 39 lbs total, at 80% capacity.
At what pressure will the relief valve activate?
✅ 375 psi (air + propane pressure combined).
What happens if a horizontal cylinder is not positioned correctly during storage?
✅ Liquid propane may enter the vapor system.
CERTIFICATION STUDY GUIDE WITH COMPLETE
SOLUTION!!
What are the natural characteristics of propane when extracted?
✅ It has no color and no odor.
Which device on a propane tank lowers the pressure before use?
✅ The regulator.
At what temperature does propane boil?
✅ –44°F (–42°C).
What happens to propane when exposed to heat?
✅ It expands.
What is it called when a liquid changes into a vapor state?
✅ Vaporization.
The number one priority when handling propane systems is:
✅ Safety.
Why is propane dangerous when mishandled?
,✅ It is highly flammable, can explode under pressure, and causes skin freezing on
contact.
Why should gloves be worn when handling propane?
✅ To protect against skin freeze.
What type of gloves are recommended when working with propane?
✅ Proper protective gloves.
How should the service valve on a propane tank be closed?
✅ By hand tightening.
What should always be worn in a workshop environment when dealing with
propane?
✅ Safety glasses.
How should propane containers be stored or transported?
✅ With a POL plug or dust cap in place.
Which type of service valve is mandatory in the RV industry?
✅ Type I OPD valve.
What became a requirement on ASME tanks after 1983?
, ✅ The OPD (Overfill Protection Device).
Where is the maximum working pressure of an ASME tank indicated?
✅ On the tank’s data plate.
What are the common ways to secure propane cylinders?
✅ Adjustable straps or T-bars.
Why is purging necessary?
✅ To clean new or contaminated cylinders.
How many purges are needed when increasing pressure by 15 psi during purging?
✅ Five purges.
A propane cylinder has a tare weight of 19 lbs and capacity of 20 lbs. What is the
proper fill level?
✅ 39 lbs total, at 80% capacity.
At what pressure will the relief valve activate?
✅ 375 psi (air + propane pressure combined).
What happens if a horizontal cylinder is not positioned correctly during storage?
✅ Liquid propane may enter the vapor system.
