The Portable Exothermic Cutting Unit (PECU) is comprised of which items?

• A. Auxiliary oxygen cylinder and spare parts kit
• B. Welding torch and electrodes
• C. Cutting nozzle and torch
• D. Electrical supply cable

Answer: (A)

Exothermic cutting relies on an oxygen supply to drive the thermite reaction at the cut point, and you need a kit that keeps that supply going and the unit serviceable in the field. The Portable Exothermic Cutting Unit is designed to provide the oxidizer in a portable form, so its basic contents are an auxiliary oxygen cylinder to feed the cut and a spare parts kit to address any field-maintenance needs. Those two items together let you perform cuts while staying ready for quick repairs if something wears or leaks.

Other items mentioned aren’t part of the PECU’s standard contents: a welding torch and electrodes relate to welding, not exothermic cutting; a cutting nozzle and torch are components used for the cutting operation but aren’t the PECU’s included package; and an electrical supply cable isn’t required because this system operates chemically and does not rely on electrical power.