AND CORRECT ANSWERS
Propane, as extracted, - CORRECT ANSWERS Is odorless and colorless
The device used on a propane tank to reduce pressure is called a - CORRECT
ANSWERS Regulator
The boiling point for propane is - CORRECT ANSWERS -44*F (-42*C)
A property of propane is that, when heated, it - CORRECT ANSWERS Expands
When an element or compound changes from the liquid phase to a vapor, it is called - CORRECT
ANSWERS Vaporization
When working with propane systems, the most important factor to consider is - CORRECT
ANSWERS Safety
Propane is flammable, can explode with pressure, and is able to - CORRECT
ANSWERS Freeze skin
It is important to wear gloves when using propane because it can - CORRECT
ANSWERS Freeze the skin
When working with propane, it is important to wear - CORRECT ANSWERS Appropriate
gloves
,To close a service valve on a propane tank, it is best to tighten the valve with - CORRECT
ANSWERS A hand
In a shop environment, always wear - CORRECT ANSWERS Safety glasses
When transporting or storing containers, always use - CORRECT ANSWERS A POL plug or
dust cap
Which service valve is mandatory in the RV industry? - CORRECT ANSWERS Type I OPD
What is now required to be part of ASME tanks but was not required prior to 1983? - CORRECT
ANSWERS OPD
The maximum allowable working pressure on an ASME tank can be found on the - CORRECT
ANSWERS Data plate
The most common securing methods for cylinders include - CORRECT
ANSWERS Adjustable straps and T-bars
Purging is necessary for - CORRECT ANSWERS New and contaminated containers
For purging, you must increase pressure by 15 psi and _____ is the total number of purgings
required. - CORRECT ANSWERS 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 ANSWERS 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 ANSWERS 375 psi
What can occur if a horizontal cylinder is not stored in its proper position? - CORRECT
ANSWERS Liquid propane can enter the vapor system
Which of the following is NOT an appurtenance? - CORRECT ANSWERS Mounting bracket
Black or green connector knobs on Type 1 OPD service valves indicate - CORRECT
ANSWERS Flow rating
ASME tanks are usually bolted to - CORRECT ANSWERS The frame
On double cylinder assemblies, make sure - CORRECT ANSWERS The cylinder tray is
attached to the unit's frame
When purging, avoid applying a vacuum to containers that may have contained - CORRECT
ANSWERS Propane
Failure to purge when necessary can cause - CORRECT ANSWERS Odor fade and false
pressure
Cylinders should be filled using - CORRECT ANSWERS 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 ANSWERS 25