Which three devices utilize a positive means to hold an emergency isolating device in the safe position?

Which three devices utilize a positive means to hold an emergency isolating device in the safe position?

• A. Push-Button, Lever, and Handle
• B. Combination or Key, Lockout and Tagout
• C. Padlock, Chain, and Cable
• D. Valve, Switch, and Door

Answer: (B)

The idea is to positively lock an energy-isolating device so it cannot be operated until a authorized person removes the lock. The three devices that provide this positive hold are combination or key locking devices (these are the locks that actually secure the lockout), lockout devices (the hardware that physically blocks the energy-isolating device from being operated), and tagout devices (the warning tags that accompany the lock to communicate the locked-out status and responsibilities). Together, these provide both the physical barrier and the clear notice needed for safe isolation. Other options describe parts of equipment or generic accessories rather than the locking systems that ensure a device stays in the safe position.

The idea is to positively lock an energy-isolating device so it cannot be operated until a authorized person removes the lock. The three devices that provide this positive hold are combination or key locking devices (these are the locks that actually secure the lockout), lockout devices (the hardware that physically blocks the energy-isolating device from being operated), and tagout devices (the warning tags that accompany the lock to communicate the locked-out status and responsibilities). Together, these provide both the physical barrier and the clear notice needed for safe isolation. Other options describe parts of equipment or generic accessories rather than the locking systems that ensure a device stays in the safe position.