WorksheetsWelding Bell Ringer 1/29/26
Total questions: 15
Worksheet time: 8mins
The primary purpose of welding PPE is to:
Keep the welder comfortable
Protect from burns, radiation, fumes, and impacts
Reduce ventilation needs
Replace safe work practices
Which fabric is unsafe to wear near sparks?
Cotton
Wool
Polyester
Leather
What does SDS stand for in welding safety?
Safe Daily Schedule
Safety Data Sheet
Standard Duty Shield
Secure Duct System
Grounding a welding machine prevents:
Overheating
Electrical shock
Arc blow
Fume buildup
The correct order to light an oxyfuel torch is:
Oxygen first, then fuel
Fuel first slightly, ignite, then add oxygen
Both valves fully open
Oxygen fully, then fuel
A neutral oxyfuel flame has:
Feathers on the cone
Sharp inner cone, no feathers
Yellow tip
Hissing sound
Acetylene cylinders should be stored:
Upright, secured, away from elevators
Flat on floor
Near exits
With oxygen
What is the maximum safe pressure for acetylene?
15 psi
30 psi
100 psi
Unlimited
In plasma arc cutting, plasma is created by:
Acetylene and acetone
Superheating gas in an electric arc
Radioactive exposure
Large orifice fuel
Plasma arc cutting is typically:
Slower than oxyfuel
Faster and more efficient
Creates more dross
Larger heat-affected zone
Optional PPE for plasma cutting includes:
Leather gloves
Hearing protection
Face shield
Respirator
Heavy-duty plasma systems often use separate cylinders for:
Cutting gas and acetylene
Cutting gas and shielding/cooling gas
Oxygen and water
Fuel and plasma
Travel speed in plasma cutting affects:
Only thickness
Kerf width and cut quality
Gas pressure only
Electrode life
Common plasma gases include:
Acetylene only
Air, nitrogen, oxygen
Propane
Hydrogen alone
To shutdown plasma equipment:
Close gas, then power
Power off first, then gas
Leave running
Bleed lines only
