Shop TQ Prep Flashcards
If you had a 120 ton brake and you are braking a 6’ piece of material how many tons per foot would you have?
20 tons per foot of breaking power
What is the allowance for inside dimensions?
Add 20%
What is the allowance for outside dimensions?
Subtract 80%
What is the amount of travel of the moving beam that is adjustable on press brakes?
Stroke Length
What is the distance between the lower surface of the top beam and the upper surface of the bottom beam when the moveable beam is at its maximum stroke length with no dies in place?
Opening height
Name three types of bending on a power press brake.
Coining-stamping, Bottom bending, Air bending
What is the name of the upper and lower bending tool on a power brake?
Upper is punch, bottom is die
What do stainless steel, aluminum, and zinc have in common?
Difficult to work with
What is the protective coating on stainless steel?
Chrome Oxide
When TIG welding, what shade lens number is required?
10-12 shade
After welding an alloy, how is the finish restored?
Polish and Buff
Which power hand tool removes small punches of metal?
Nibbler
Why is a throatless bench shear’s blade clearance so important?
For a clean cut with no burr
Which machine is used to form the male side of a Pittsburgh?
Easy edger
What must be adjusted when forming a female Pittsburgh on a hand brake?
Upper leaf
What is the proper distance between a stack and conical cap?
½ diameter of stack
When joining two pieces of metal, how much should a solid rivet stick through?
1½ diameters
How are spot welder tips held in place?
With tapers
What is the best welding joint for a longitudinal seam on 16 gauge mild steel?
Lap
Where does flashback occur?
Inside the line and torch handle
When bending 10 gauge aluminum on a hand brake, how far should the top leaf be set back?
3 metal thicknesses
What is the purpose of lacquer on brass?
Oxidizing
What is the double seam allowance for the bottom piece of a cylinder?
2W
Which flux is used to seal a Galvanized gum cup?
Muriatic