WorksheetsWelding Class Test
Total questions: 23
Worksheet time: 12mins
Define the following term: GMAW.
Gas Metal Arc Welding (GMAW) is a welding process in which an electric arc forms between a consumable wire electrode and the workpiece metal, causing them to melt and join.
Gas Metal Arc Welding (GMAW) is a process where two metals are joined using only pressure and no heat.
Gas Metal Arc Welding (GMAW) is a method of cutting metals using a high-pressure water jet.
Gas Metal Arc Welding (GMAW) is a painting technique used to coat metals with a protective layer.
Define the following term: MIG.
MIG stands for Metal Inert Gas welding, a process that uses a continuous solid wire electrode heated and fed into the weld pool from a welding gun.
MIG stands for Manual Inert Gas, a process used in painting.
MIG stands for Metal Injection Grading, a process in metallurgy.
MIG stands for Mechanical Inert Gas, a process in refrigeration.
Define the following term: Weld Current/Amperage.
Weld Current/Amperage refers to the amount of electric current supplied to the welding arc, which affects the heat and penetration of the weld.
Weld Current/Amperage refers to the type of metal used in the welding process.
Weld Current/Amperage refers to the distance between the welding torch and the workpiece.
Weld Current/Amperage refers to the color of the welding arc.
Define the following term: IPM.
IPM stands for Inches Per Minute, a measurement of the speed at which the welding wire is fed into the weld.
IPM stands for International Project Management, a global standard for managing projects.
IPM stands for Integrated Power Module, a component in automotive electrical systems.
IPM stands for Internet Protocol Management, a method for managing network addresses.
Define the following term: WFS.
WFS stands for Wire Feed Speed, which is the rate at which the welding wire is fed into the weld pool.
WFS stands for Welding Flame Strength, which is the intensity of the welding flame.
WFS stands for Weld Fusion Speed, which is the speed at which the weld pool solidifies.
WFS stands for Wire Flux Solution, which is the chemical used to clean the welding wire.
Define the following term: Synergic.
Synergic refers to a welding mode where multiple parameters are automatically adjusted together to optimize the welding process.
Synergic refers to a process where only the voltage is controlled manually during welding.
Synergic is a term used for a type of metal used in welding electrodes.
Synergic describes a welding defect caused by improper shielding gas flow.
Define the following term: Oxidation.
Oxidation is a chemical reaction in which a metal reacts with oxygen to form an oxide, often leading to corrosion.
Oxidation is the process of breaking down large molecules into smaller ones using water.
Oxidation is a physical change where a substance changes its state from solid to liquid.
Oxidation is the process of mixing two substances to form a homogeneous mixture.
Define the following term: Buckshot.
Buckshot refers to the tiny globules or splatter of molten metal that form around the weld area during the welding process. If left untreated, these particles can not only affect the appearance of the weld but may also contribute to corrosion and reduce the performance or integrity of the weld.
Buckshot is a type of welding rod used for high-strength joints in structural steel.
Buckshot is a protective coating applied to prevent rust on metal surfaces before welding.
Buckshot refers to a specific welding technique used to join dissimilar metals.
Define the following term: Tensile Strength.
Tensile Strength is the maximum amount of tensile (stretching) stress that a material can withstand before breaking.
Tensile Strength is the ability of a material to resist compression forces without deforming.
Tensile Strength is the measure of a material's ability to conduct electricity.
Tensile Strength is the temperature at which a material melts.
Define the following term: Stick Out.
Stick Out refers to the length of the welding wire that extends beyond the contact tip of the welding gun.
Stick Out refers to the distance between two weld beads.
Stick Out refers to the thickness of the welding electrode coating.
Stick Out refers to the temperature at which welding occurs.
One of the biggest challenges with MIG welding on stainless steel is buckshot. Which method is recommended for cleaning buckshot off of stainless steel post-weld without affecting the quality and strength of the weld?
Using a stainless steel wire brush and pickling paste
Using a carbon steel wire brush
Grinding with a coarse abrasive wheel
Cleaning with water and soap only
Post-Weld Cleaning Directions: 2. Be sure to include the tool and materials used and how to use the tools and materials correctly.
Always specify the tool and materials used and explain their correct usage.
Only mention the tool, not the materials used.
List the materials but do not explain their usage.
Skip mentioning both tools and materials.
Correctly cleaning buckshot off of stainless steel involves which of the following steps?
Gently removing debris with a non-abrasive cloth and using a stainless steel cleaner
Scrubbing with steel wool and harsh chemicals
Leaving the buckshot residue to avoid scratching the surface
Using sandpaper to remove all marks
What is the main purpose of post-weld cleaning for stainless steel?
To add color to the weld
To remove surface imperfections and restore the passive layer
To increase the thickness of the steel
To make the weld visible
Post-weld cleaning is the process of removing surface imperfections such as oxides, discoloration, and splatter (buckshot) after welding is completed.
True
False
Fill in the blank: The passive layer restored during post-weld cleaning is a thin, invisible ______ layer that protects the steel from corrosion.
oxide
carbon
salt
grease
Which of the following tools should be used to avoid cross-contamination when cleaning stainless steel welds?
Carbon steel wire brush
Stainless steel wire brush
Plastic brush
Wooden brush
What should you do if you encounter stubborn splatter (buckshot) while cleaning a stainless steel weld?
Use a flap disc or grinding wheel with fine grit to gently grind away the buckshot
Use a hammer
Use water to wash it off
Ignore it
After cleaning, always inspect the weld visually and, if needed, perform non-destructive testing (NDT) like dye penetrant inspection to ensure no cracks or defects have been introduced during cleaning.
True
False
Fill in the blank: Work in well-ventilated ______, especially during chemical cleaning.
areas
rooms
closets
drawers
Chemicals should be disposed of properly, following local environmental regulations.
True
False
Proper post-weld cleaning of stainless steel is essential because:
it prevents corrosion and maintains material integrity.
it improves the color of the weld only.
it increases the weight of the steel.
it makes the steel magnetic.
Which methods can be used to remove buckshot from stainless steel welds?
Mechanical methods
Chemical methods
Electrochemical methods
All of the above
