Safety
What is an example of P.P.E.?
What is
Safety glasses
Gloves
Brazing green glasses
The green hose on a brazing torch is what gas?
What is
Oxygen or O2
The tool used to etch into metal typically galvanized metal to layout dimensions?
What is
A scratch awl
The hand brake is used to brake metal and create certain degrees. How many degrees is a male Pittsburg?
What is
90 degrees
This tool is used to loosen and also tighten screws (HAND TOOL)
What is
A screw driver
The logo on safety glasses to specify “industrial quality”
What is Z 87.1
The red hose on a brazing torch indicates gas. What kind of gas?
What is
Acetylene
Some ductwork has slip and drive. How much do you notch out on a flat piece of metal for that?
What is
1 inch
When we build duct we have 2 connections. What are they?
What is
Slip
Drive
This tool is usually used to cut shapes, lines, and other markings that go to the left.
What is
Right SNIPS
The M.S.D.S stands for what? And what is its purpose?
What is
Material Safety Data Sheets
In case of accident or injury to know how to treat wound depending on chemical(s)
Setting up for brazing, the tanks have certain PSI numbers to follow. What is the correct PSI for oxygen and acetylene?
What is
O2 20-25 psi
Gas 3-5 psiWhen laying out, you have to make sure you have an overall measurement.
How much is a female and male Pittsburgh?What is
Female-1/2 inch
Male-1/4 inch
You would put this in a piece or a few pieces of duct to control the airflow to continue through or stop in the run of duct. What would you put in a piece of duct to control the airflow?
What is a
Damper/Volume damperWhen in use, you are supposed to have safety glasses, gloves, and a face shield on. What tool/equipment is this?
What is
Chop saw and
or grinderFor safety reasons, when on an extension ladder there are certain rules to follow. They typically say this ratio.
What is
4:1 ratiofor ever 4 foot up the ladder, it should be 1 foot away from the structure.
When brazing you must heat up the joints in order for a solid, strong pipe connection. What holds solder to the pipe?
What is
Flux
An elbow is usually a piece of duct that moves air in a certain direction. How much do you brake a heel at typically on elbow duct?
What is
90 degrees
Sometimes 45 degrees
Ductwork airflow is calculated by CFM’s. What does CFMs stand for?
What is
Cubic Feet per Minute
This tool is used to take burrs off copper pipe.
What is a
Deburrer/reemer
The phrase “LOTO” stands for what and its purpose?
What is
Lock out tag out
To keep someone from using or operating broken or in service equipment
Brazing is different that soldering.
What is brazing in a nutshell?
What is
Brazing is a metal joining process where a filler metal with a lower melting point than the base metals is melted and drawn into the joint by capillary action, creating a bond between the workpieces without melting the base metals
Fittings have certain sides. What are the 4 sides to a radius elbow?
What is
Cheek 1
Cheek 2
Heel
Throat
There is air flowing in a run of duct. One goes in, the other goes out. They have certain names. What are they?
Yes, I know we didn’t go over this, try to guess.
What is
Supply air
Return air
This is used to join 2 or more pieces of metal together. Not by fusing or welding, but by popping.
What is a
River gun/pop river fun