Ramsay Test Welding and Metal Working 2 — Questions and Answers
Question 1: Which welding process uses a consumable wire electrode fed automatically through a gun under a shielding gas?
- MIG (GMAW) (Correct answer)
- TIG (GTAW)
- Stick (SMAW)
- Oxy-acetylene
Correct answer: MIG (GMAW)
MIG/GMAW feeds a continuous consumable wire through the gun while shielding gas protects the weld pool.
Question 2: What is the primary purpose of flux in welding?
- To shield the weld from atmospheric contamination (Correct answer)
- To increase amperage
- To cool the base metal
- To add color to the weld
Correct answer: To shield the weld from atmospheric contamination
Flux creates a protective gas or slag that prevents oxygen and nitrogen from contaminating the molten weld.
Question 3: Which metal has the highest electrical conductivity commonly used in shop wiring?
- Copper (Correct answer)
- Steel
- Aluminum
- Lead
Correct answer: Copper
Copper is among the best conductors of electricity, making it standard for wiring.
Question 4: When using an oxy-acetylene torch, which gas is the fuel?
- Acetylene (Correct answer)
- Oxygen
- Argon
- Nitrogen
Correct answer: Acetylene
Acetylene is the fuel gas and oxygen supports its combustion to produce a high-temperature flame.
Question 5: What does porosity in a finished weld indicate?
- Trapped gas bubbles weakening the weld (Correct answer)
- Excess hardness
- Perfect penetration
- Proper shielding
Correct answer: Trapped gas bubbles weakening the weld
Porosity is gas pockets trapped in the weld metal that reduce its strength.
Question 6: Which tool is used to remove slag after stick welding?
- Chipping hammer (Correct answer)
- Torque wrench
- Micrometer
- Tap
Correct answer: Chipping hammer
A chipping hammer breaks off the hardened slag coating left by the flux.
Question 7: Increasing the amperage on a welder generally does what to penetration?
- Increases penetration (Correct answer)
- Decreases penetration
- Has no effect
- Stops the arc
Correct answer: Increases penetration
Higher amperage delivers more heat, producing deeper weld penetration.
Ramsay Test Welding and Metal Working 2
Which welding process uses a consumable wire electrode fed automatically through a gun under a shielding gas?