cutting 1
A two piece torch allows for different attachments what are they?
Cutting,heating, and welding
Where is the oxygen orifice on a cutting tip?
In the centre of the tip
The choice of cutting tip depends upon ?
Type of Fuel, Manual or machine ,Material thickness
Mapp gas tips are how many pieces
2 pieces
Used for cutting has a flat side to prevent the base metal from being burned.What type of tip is it.
Rivet cutting
The main application of heating tips includes?
Straightening, post heating preheating, Forming
A flare will happen when cleaning this incorrectly what is it.
Torch tip
Templates are used as a master pattern for cutting ?
Irregular shapes
The oxy-fuel gas cutting machine torch body typically consists of how many valves?
3 valves
Electronic eye uses a drawing and special ?
Tracer ink
How are pipe bevelling machines driven?
BY hand or motor driven
What is cracking a Oxygen valve used for?
Cleaning the valve stem
How to detect for leaks in Oxy-fuel
Smell,sound,pressure gauge falling,soapy water
List the three flame types?
Neutral,Carburizing, Oxidizing
How high above the base metal are the preheat flames
when starting a cut?
1/16 to1/8 Page66
Factors that affect a quality cut are ?
Travel speed,surface condition of material,cutting tip size,preheat flame, torch position
Torch angle for sheet metal is?
10 to 20 degrees
Other techniques that minimize distortion?
Intermittent cutting, stack cutting
Surface hardening can be prevented by?
Preheat and post heat
Kindling point is what temperature for carbon steel?
870 C(1600)F
What is a non-ferrous metal list them.
Aluminum, copper, Bronze,Brass, Magnesium Page 76
The drag lines curve back away from the direction of travel what is the problem with your cutting?
The travel speed is to fast
Top edge melted and rounded bottom edge very rough and irregular face of cut .What is the problem with your cutting?
Cutting speed to slow
A Waster plate is used to cut what type of materials?
High carbon and Alloy steels?
What are the Number on a 7018 rod mean and what polarity does it run in?
70 psi 1 position 8 composition, Electrode Positive