VIRTUAL PRACTICE LAB 03

Control the energy.
Verify the protection.

Hazardous Energy Control—LOTO. Follow a fictional machine procedure, apply personal locks, and make decisions from the evidence.

Free practiceBETA testAbout 20–30 minutes
LAB BENCH / 0 of 4 stations complete
Start with the machine-specific procedure.

SIMULATED PRACTICE RECORD

Read the evidence before release.

View the decision and equipment log

    KEEP LEARNING

    Connect the procedure to the work.

    Next practical · Hazard Communication / Chemical Safety →

    LOTO-001-AUTH · Authorized Employee Knowledge
    LOTO-001-AFF · Affected Employee Instruction
    LOTO-001-OTHER · Other Employee Awareness

    Separate report-reading resource · Its worked example is noise. Here, practice reading equipment identity, scope, controls, evidence, changed conditions and disposition in a verification record.

    Practice stays in this browser when storage is available. No learner/account results are transmitted. This supplement awards no course credit, certificate, authorized-employee designation or equipment qualification.

    Fictional procedure, scope & primary sources

    EC-03 v1 · supplied teaching assumptions

    M-03, its interlocked transfer machine, procedure, people, devices, records and readings are fictional. E-1 is the specified lockable electrical disconnect; A-1 is the specified lockable air-isolation valve. The example inputs are 480 V supply, 90 psi air and an 80 kg raised head. These are descriptive teaching inputs, not field specifications or device ratings.

    A compatible personal lock/ID-tag arrangement, correctly rated restraint R-03, pressure indication P-03, safe remote bleed and outside-access mechanical lowering fixture are supplied assumptions. R-03 is installed without anyone beneath the raised head. It is secured before pressure relief. Restoration lowers the head mechanically to a stable rest with electrical and air isolation still locked; it does not require energizing this fictional machine. Actual equipment requires its own designed and verified method.

    Electrical record Q-17 is provided by a fictional qualified person. The learner reviews the record; no probes, energized conductors, cabinet access or live electrical-testing instructions are simulated. A control try and pressure gauge are not absence-of-voltage testing. The pressure challenge supplies a 15 psi reaccumulation event and a separate protected correction record with fresh post-correction electrical evidence Q-17R; no learner fault repair is simulated. Continued verification is required in real work wherever hazardous reaccumulation is possible.

    The restoration station is a separate two-person scenario with a supplied shared-hasp arrangement at both isolators. Alex and Jordan each retain control of their own personal devices. The coworker event represents Jordan removing Jordan’s devices. Exceptional absent-person removal, group lockboxes, shift transfers, temporary energization for testing, tagout-only protection and industry-specific schemes require their own procedures and are not fully practiced here.

    Primary sources

    Source check: October 27, 2026. AI-assisted development. Independent technical, accessibility and learning validation remain pending. Use employer/manufacturer procedures and applicable jurisdiction/industry requirements for real work. No OSHA or manufacturer endorsement is claimed.