High open-circuit voltage can pose what hazard in welding safety?

High open-circuit voltage can pose what hazard in welding safety?

• A. Increased risk of electrode sticking.
• B. Reduced arc stability.
• C. Shock hazards.
• D. Faster welding cooldown.

Answer: (C)

High open-circuit voltage means there’s a large potential difference present when the welding circuit is open (no arc). That voltage can deliver an electric shock if a person touches live parts or creates a path to ground through a damp skin or a conductive surface. The danger isn’t about how the arc behaves once it starts; it’s about the voltage the welder could be exposed to before or if the arc is interrupted. So the main hazard here is the risk of electric shock. The other options don’t fit as directly: electrode sticking and arc stability are influenced more by current, electrode type, and technique, not primarily by open-circuit voltage. Faster cooldown relates to heat transfer and cooling rates, not the electrical shock risk.

High open-circuit voltage means there’s a large potential difference present when the welding circuit is open (no arc). That voltage can deliver an electric shock if a person touches live parts or creates a path to ground through a damp skin or a conductive surface. The danger isn’t about how the arc behaves once it starts; it’s about the voltage the welder could be exposed to before or if the arc is interrupted. So the main hazard here is the risk of electric shock.

The other options don’t fit as directly: electrode sticking and arc stability are influenced more by current, electrode type, and technique, not primarily by open-circuit voltage. Faster cooldown relates to heat transfer and cooling rates, not the electrical shock risk.