Welding techniques play an essential role in many industries. It helps joint together thermoplastic or metal parts, thus opening up the opportunities for more creating and repairing products. No matter if you are a technical expert or just want to know more about this process, these welding quiz questions and answers can help you improve your knowledge. Let’s check it out.
Welding Quiz Questions and Answers
1. The MIG welding process is also known as …
A. Gas metal arc welding
B. Flux cored arc welding
C. Self-shielded welding
2. When was welding techniques discovered?
A. In ancient times
B. In the Middle Ages
C. In the Industrial Revolution
3. Which is the most dangerous occupational hazard occurring to welders?
A. UV radiation
B. Metal fumes
C. Cuts
4. What is the process of penetrating excessively in a localised metal area?
A. Under-cutting
B. Burn-through
C. Slope
5. In most cases, where should we place the power source of welding?
A. In a well-ventilated, uncluttered area
B. In an enclosed area
C. In the centre of the space
6. Dirt and moisture accumulated on the wire electrode’s surface might cause …
A. Cold lap
B. Porosity
C. Electrical shock
7. In metal arc welding processes, what are the temperatures of the negative and positive electrode?
A. 2400°C and 2500°C
B. 2500°C and 2400°C
C. 2500°C and 2500°C
8. Which of the following sources can result in hazardous chemical fumes when welding?
A. Anti-spatter nozzle sprays
B. Chlorinated degreasing solvents
C. Inert shielding gases
9. How many kinds of welding are there?
A. 10 to 20
B. 40 to 50
C. 70 to 80
10. Stubbing in welding is often caused by which factor?
A. Excessive resistance
B. Excessive voltage
C. Excessive wire feed speed
11. When you increase stick-out, how will penetration change?
A. Increase
B. Decrease
C. Stable
12. Which of the following organisations introduce written specifications for gas metal arc welding filler metals?
A. CSA and WCB
B. CSA and AWS
C. CWB and AWS
13. Excessive buildup of spatter in the gun nozzle would cause which of the following issues?
A. Undercut on the weld edges
B. Insufficient gas coverage
C. A rise in stick-out
14. TIG is one of the 3 basic kinds of welding. What does TIG stand for?
A. Tungsten Inert Gas
B. Tungsten In Gas
C. Tungsten Inside Gas
15. What could be a result of a poor connection of work lead?
A. Unstable arc
B. Excessive penetration
C. Unexpected wire feed speed
16. In what position a gas flow meter should be set up?
A. Horizontal
B. Vertical
C. At a 45-degree angle
17. What is a flowmeter mainly used in welding?
A. Ensure a stable gas flow
B. Ensure a stable gas pressure
C. Lower source pressure
18. Helium and argon are often used in welding. Which type of gas are they?
A. Explosive gases
B. Ionized gases
C. Inert gases
19. What do we call a metal deposit left on the material after a welding process?
A. A crater
B. A puddle
C. A bead
20. What is the main purpose of adding 1 to 5 per cent of oxygen to argon shielding gas?
A. Lower welding expenses
B. Enhance wetting action
C. Minimise splatter
21. In carbon arc welding processes, which of the following gases is used as protection?
A. Methane
B. Carbon dioxide
C. Carbon monoxide
22. Which sign indicates a hazard in welding?
A. Triangular on a yellow background
B. Circular on a red background
C. Triangular on a blue background
23. Argon is a better shielding gas than CO2 because it allows the application of …
A. Spray metal transfer
B. Globular metal transfer
C. Short-circuit metal transfer
24. Wires are kept in sealed containers primarily to provide protection against …
A. Transportation damage
B. Fumes and smoke
C. Moisture contamination
25. What is the natural twisting process of the wire during the formation?
A. Curling
B. Spiraling
C. Helix
26. Excessive drag due to a dirty liner would cause which of the following issues?
A. Excessive undercut
B. Cracking or porosity in the weld
C. Bird nesting or slippage
27. In a GMAW process, what is needed for the use of shielding gases?
A. Good lighting
B. Good eye protection
C. Good ventilation
28. Emissions of high ultraviolet radiation from GMAW processes would lead to atmospheric oxygen in the proximity of the arc to transform to which gas?
A. Ozone
B. Carbon monoxide
C. Carbon dioxide
29. What is the main role of carbon in carbon arc welding?
A. To produce more heat at the electrode tip
B. To reduce heat at the electrode tip
C. To provide coating
30. Which of the following materials can’t be used in a carbon arc welding process?
A. Copper
B. Aluminium
C. Iron
31. Which bead character is the result of too high current in welding?
A. Excess splatter
B. Metal pilling
C. Weld metal pilling
Welding processes can be complicated, but they are important in the modern world. These questions cover the basics that you should know about this technology. If you are looking for a similar test, then try this one on some dirty questions.
