The Big Test Flashcards
True or False: Steam can be used in grooved lines.
False
On a grooved system, a gasket with a red dot resembles what?
Gas
On a grooved system, a gasket with a green dot resembles what?
Potable Water
When turning the regulator to the right and pushing in will put the tank in what position?
open
When turning the regulator to the left and pulling out will put the tank in what position?
closed
A flame retardent blanket does what?
Protects surfaces from the flame
Red is for…
Acetylene
Powder/light blue is for…
Propane
What makes fuel/gas burn hotter?
Oxygen
Do Plumbers do more soldering or brazing?
Soldering
Another name for brazing is…
Silver soldering
What holds the acetylene in cylinder/tank?
Porous filling
Why should you never lay a tank down?
It will burn Acetone
Can you transport tanks under tunnels?
No
Which will get messed up first? The stem or regulator?
The stem gets messed up first then the regulator
Fuels for soldering include…
Acetylene, Map Gas, Propane
Acetylene abbreviation:
(C2H2)
Acetylene is composed of…
2 parts carbon, 2 parts hydrogen
Map Gas is also known as…
Methlyacetylene Propadier
Map Gas abbreviation:
(C3H4)
Map Gas is composed of…
3 parts carbon, 3 parts hydrogen
Propane Abbreviation:
(C3H8)
LP=
Liquid Petroleum
What is added to natural gas and propane to give it it’s smell?
Mercapton
What should you write on a piece of duct tape on a tank when it’s empty?
MT & Date
What should you write on a piece of duct tape on a tank when it has a leaky stem?
Leaky Stem & Date
How is gas measured?
Water Column
What is the smallest pipe that can be roll grooved?
1 1/2”
What is the largest pipe that can be roll grooved?
8”
What holds the couplings together in Roll Grooving?
T-Bolts
In roll grooving standard couplings have how much deflection?
4%
What length does Black Steel come in?
21’
What length does Copper come in?
20’
How much PSI can a gasket hold without housing?
5 PSI
How much PSI can a gasket hold with housing?
300 PSI
Gaskets are made of…
EPDM (Elastomer)
What head do you use to groove PVC?
Steel Head
Which couplings in roll grooving are cut square?
Standard Couplings
What couplings in roll grooving are cut on an angle?
Zeroflex
What company did we see in HVAC?
Counterstrike/Omegaflex
What was the presenters name?
Pat Shay
What company did he work for?
Tarantin Industries
True or False: Each Manufacturer has its own inside diameter and fittings.
True
True or False: Tracpipe has the largest wall thickness.
True
Tracpipe PS 11 is used for…
Underground
CSST stands for…
Corrugated Stainless Steel Tubing
CSST consists of a flexible stainless steel tube encased in a jacket of
PE Plastic
Is CSST lighter or heavier than than rigid pipe?
Lighter
How is CSST delivered?
Precut lengths coiled on drums
True or False: The components of CSST systems are not interchangable among manufacturers.
True
TracPipe is made by
OMGEAFLEX
Parker Gas Piping (PGP) is made by
Parker Hannifin Corporation
True or False: Cast Iron is an acceptable material for threaded CSST fittings.
False
Ball valves should be installed…
Upstream from appliances or connectors
To connect a length of CSST to an appliance you would use a ______ fitting.
Straight
The maximum allowable operating pressure for gas systems is what?
5 PSIG
Universal pipe supports and struts or pipe straps can handle ______ pipe runs.
Multiple
3/8” rod can hold how much PSI?
400 PSI
What is the highest water column?
5 PSI
2 feet of Head =
1 PSI
6-7 Water Column =
2.5 PSI
A device mounted in a finished wall, floor, or ceiling that serves as a fixed connection for an appliance or other device is known as a(an)
Stub-Out
A device that allows one CSST pipe to be branched off to multiple outlets is known as what?
A Manifold
A type of valve that provides positive, quick flow controlon gas piping systems is a(an)
Gas Cock
A fitting that allows a branch to be taken off from a main gas line is a(an)
Tee Fitting
A unit of measure used to specify the maximum operating pressure for a gas system is a(an)
Pounds Per Square Inch Gauge (PSIG)
A device used in elevated pressure systems to reduce the gas pressure before the pipe outlet is a(an)
Regulator
