Random 1
Why would you use a back stepping welding technique?
To minimize distortion. Very easy to make a consistent weld.
Which of the following is true of the tee joint?
Most of the heat is reflected back on the torch as there is no-where else for it to go.
If the molten weld pool size increases beyond that which the ____ will support, the pool will overflow and drip down the weld.
Shelf
What is the square root of 49
7
The ideal angle for the welding torch is ____.
45, so the heat is more evenly distributed on the base metal and filler metal.
Name a country with 3 A's in its name
Australia, Albania, Canada, etc.
How many pounds are in a kilogram?
About 2.2
Yes
Which of the following is true of welding mild steel pipe and tubing?
It is seldom (rarely) used to manufacture piping systems. It is the weakest welding process and does very poorly against gravity.
What is the 6th planet from the sun?
Saturn
What is the Miami Dolphin's record?
3-0
Which pipe welding position has the pipe held vertically?
What would happen if the secondary flame is suddenly moved away from the molten weld pool?
The molten weld pool with throw off a number of sparks because....
Name a teacher that needs to trim his beard
Mr. Schwaner
Which pipe welding position has the pipe held fixed horizontally?
5G, the pipe is horizontal but the weld is vertical
Often the number of sparks in the air increases just before a ____ takes place.
Burn through, remember sparks are often a result in a change of temperature.
What is a super nova?
An exploding star
Which of the following is true of the lap joint?
Heat is not evenly distributed as the lap joint has different thicknesses.
Some joints, such as the lap joint, may never need 100% ____; however, they do need 100% ____.
Penetration, Fusion. 100% fusion is always required but 100% penetration is not possible due to the different thicknesses.
Which of the following is true of the flat outside corner joint?
If filler metal is added it must be added uniformly. Consistency is key for everything thing is welding. Any differences in the weld will result in weak points and will cause you to fail an x-ray or destructive test.
Why would you not reduce the flame size below its correct setting if the torch flame is too large for the job?
Reducing the flame size can overheat the tip because there is less gas flowing which helps cool the tip
Why should the end of the welding rod be kept inside the protective envelope of the flame?
To prevent the rod from oxidizing in the surrounding air.
Who is Nancy Pelosi?
Speaker of the house
What gas from the flame can protect the molten weld metal from oxidizing?
C02 Carbon dioxide is a shielding gas and therefore shields the metal from the surrounding air.
Explain how a super charger or turbo charger works
Super chargers use the engine to spin and impeller which sucks in extra air and allows the engine to burn more fuel more quickly.
Turbos use the engine exhaust to spin a turbine which sucks in more air and allows the engine to burn more fuel more quickly