Tools & Equipment Operation Flashcards
7 cards from real AWS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Tools & Equipment Operation flashcards as text
When should the anti-spatter compound be applied to a MIG welding nozzle?
Answer: Before welding begins, to prevent spatter buildup that restricts shielding gas flow
Applying anti-spatter compound before welding creates a barrier that prevents spatter from adhering, making cleanup easier and maintaining gas coverage.
What is the correct procedure when a regulator's inlet valve on a gas cylinder is opened?
Answer: Stand to the side and open the valve slowly at first, then fully open it for most gases
Standing aside protects the operator from adiabatic compression hazards, and slow initial opening prevents pressure surge damage to the regulator.
Which drive roll type is recommended for feeding flux-cored wire in a MIG welder?
Answer: Knurled or serrated V-groove rolls that grip the tubular wire without crushing it
Knurled rolls provide positive traction on the textured surface of flux-cored wire without collapsing the hollow core.
What is the recommended method to test for gas leaks on an oxy-fuel system after setup?
Answer: Apply a leak-detection solution or soapy water to all fittings and observe for bubbles
Soapy water or commercial leak detector solution will bubble visibly at any fitting, valve, or hose that is leaking, enabling safe identification.
An angle grinder used for weld preparation should be equipped with a wheel rated for a speed:
Answer: At least equal to or greater than the maximum RPM of the grinder to prevent wheel failure
Operating an abrasive wheel above its rated RPM can cause catastrophic disintegration; the wheel's max RPM must meet or exceed the tool's max speed.
In GTAW (TIG), what is the purpose of the post-flow timer setting?
Answer: To continue flowing shielding gas after the arc extinguishes, protecting the hot tungsten and weld pool from oxidation
Post-flow keeps the argon blanket over the tungsten and solidifying weld metal until they cool below oxidation temperature.
Which PPE item is specifically designed to protect against molten metal splash during carbon arc gouging?
Answer: Leather welding jacket or sleeves rated for high-heat and spark exposure
Leather PPE resists burn-through from the intense spatter and molten metal expelled at high velocity during gouging operations.