Why do we use an engineering square? Engineering squares have a proper 90* right angle on the inside which we use to check if other objects have a right angle and are level.
When we use a lathe do we cut clockwise or anti-clockwise? anti clockwise
why do we centre punch before drilling? without centre punching the object will still be smooth causing the drill piece to slip and slide and not drill. Centre punching will make a small indent for the drill piece to sit in and allow it to drill without slipping.
when making the drill gauge what size drill bit do we use? 4mm, 6mm, 8mm, 10mm, 12mm
what psi/bar do you set the gas welding gauges on? acetylene=3 oxygen=10
What are the S.O.P. for using the drill press?
Why do we us cutting oil when drilling? Cutting oil is used to help lubricate and heat dispersal to keep the drill bit cool and prevent breaking.
When using a micrometer, if it is set to zero & we we turn it two turns on the thimble, what would it be reading? 1mm
What is the difference between fusion and brazing welding? Fusion is where you heat the metal up so much that it starts to liquefy and then you start moving this liquid and meshing them together to bridge the gap. Brazing you heat the brazing rod and dip it in flux. Heat the metal till it is red then start melting the brazing mixture in to fill the gap.
What two files do we use? Bastard (rough) and soft file to clean it off.
What are the five joints we do in the welding? butt joint, lap joint, inside right angle, outside right angle, and ash tray.
What angle is the drill gauge set to? 58*
what is the tool called to set this angle? bevel ruler.
If you cant get a good flame with the oxyacetylene welding, what should you do with the nozzle? Use the pokey rod thingies to poke into the nozzle to clean it.
Which way should the blade be facing on a hacksaw? Facing forward with teethe back towards handle.
