Lock Out Tag Out (LOTO) Practice Flashcards

A set of vocabulary-style flashcards covering the definitions, procedures, regulations, and roles associated with Lock Out Tag Out (LOTO) safety protocols.

Lock Out Tag Out (LOTO)

A safety procedure used to ensure that dangerous machines are properly shut off and not started up again before maintenance or repair work is completed.

OSHA 29 CFR 1910.147

A specific occupational health and safety regulation that mandates compliance with lockout/tagout procedures for controlling hazardous energy.

Hazardous Energy Types

Categories of energy that must be controlled, including Electrical, Mechanical, Hydraulic, Pneumatic, Chemical, Thermal, and Stored energy.

P-A-T-V-E-R-I-F-Y

An acronym for the LOTO procedure: Prepare for shutdown, Announce shutdown, Turn off equipment, Verify isolation, Engage Lockout Devices, Release stored energy, Install tag, Final check, and You’re safe to work.

Stored Energy

Potential energy that remains in a system after the main power source is disconnected, such as compressed springs, flywheels, elevated loads, or capacitors.

Authorized Employees

Trained workers who are permitted to perform the Lock Out Tag Out procedures.

Affected Employees

Workers who operate or use the equipment being serviced or who work in an area where such servicing is being performed.

Tags

Warning devices that indicate a machine or piece of equipment is not to be operated; they do not provide physical restraint.

Locks

Devices that provide physical restraint to prevent equipment use, ensuring it remains in a safe position.

Final Check (Step 8)

The stage in the procedure where a worker attempts to start the equipment to ensure it is completely de-energized before beginning work.

Periodic Inspection

An annual assessment of a lockout/tagout procedure where an inspector observes an authorized employee to ensure the procedure is effective and followed correctly.