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Quizzes > Health & Medicine

Lockout/Tagout loto quiz: Test your safety knowledge

Quick, free quiz with 15 lockout tagout test questions. Instant results.

Editorial: Review CompletedCreated By: Arie WildeUpdated Aug 26, 2025
Difficulty: Moderate
Questions: 20
Learning OutcomesStudy Material
Colorful paper art illustrating a LockoutTagout Safety Quiz theme.

Use this lockout/tagout safety quiz to check your energy control steps before you service or repair machines. Work through 15 multiple-choice questions, get instant feedback, and spot gaps in your LOTO process. For more practice, try the control of hazardous energy quiz, take another lock out tag out quiz, or refresh basics with the osha ppe quiz.

What is the primary purpose of lockout/tagout procedures?
To reduce noise levels in the facility
To ensure machines operate faster
To isolate machinery from energy sources before maintenance
To schedule regular equipment inspections
Lockout/tagout procedures are designed to isolate machinery from energy sources to prevent accidental startup and protect workers during maintenance. Properly isolating energy reduces the risk of injury or equipment damage.
Which of the following best defines an energy-isolating device?
A written permit form
A checklist of shutdown steps
A mechanical device that physically prevents the release of energy
A warning sign placed on machinery
An energy-isolating device is a mechanical unit that physically prevents the flow or release of energy. Warning signs and forms are administrative controls, not energy isolation devices.
What is the first step before applying a lockout/tagout procedure?
Remove machine guards
Identify all energy sources
Notify the safety officer
Gather all required tools
The initial step is to identify all energy sources to understand what must be isolated. Skipping this step can lead to incomplete energy control and increased risk.
Who is authorized to remove a lock applied during a lockout/tagout procedure?
The maintenance manager
The facility safety officer
Any supervisor on duty
The person who applied the lock
Only the person who applied the lock is authorized to remove it to ensure accountability. This prevents unauthorized or accidental re-energization.
Which color is most commonly used for lockout/tagout tags?
Red
Yellow
Blue
Green
Red is the standard color for LOTO tags to signal danger and prevent operation. Consistent color usage helps workers quickly recognize isolated equipment.
After locking out equipment, what is the correct method to verify zero energy state?
Inspect the lock visually
Clean the surrounding area
Attempt to start the machine
Notify operations control
Attempting to start the machine confirms that all energy sources are isolated. Visual inspection alone cannot verify internal residual energy has been released.
Which OSHA standard specifically covers the control of hazardous energy (lockout/tagout)?
29 CFR 1910.120
29 CFR 1904.39
29 CFR 1926.501
29 CFR 1910.147
OSHA 29 CFR 1910.147 is the regulation that outlines lockout/tagout requirements. Other standards address different safety topics.
In a group lockout procedure, which device is used to secure individual locks in a single location?
Safety hasp
Padlock chain
Warning tag
Lockout box
A lockout box holds keys from individual locks to centralize control during group servicing. A safety hasp is for multiple padlocks on one isolating device.
What type of energy is stored in a compressed spring that must be controlled during LOTO?
Kinetic energy
Chemical energy
Potential energy
Thermal energy
A compressed spring contains potential energy that can release suddenly. Controlling potential energy is essential to prevent unexpected movement.
What is the correct action to take before performing maintenance on a machine with stored hydraulic pressure?
Tighten all fittings
Release residual pressure
Increase system pressure
Paint the hydraulic lines
Releasing residual hydraulic pressure ensures there is no stored energy that could cause movement. Failing to bleed lines can result in sudden energy release.
Which sequence correctly represents the standard lockout/tagout steps?
Shut down â†' Release residual â†' Isolate â†' Lock/tag â†' Verify
Isolate â†' Shut down â†' Release residual â†' Lock/tag â†' Verify
Shut down â†' Isolate â†' Release residual â†' Lock/tag â†' Verify
Shut down â†' Isolate â†' Lock/tag â†' Release residual â†' Verify
The correct sequence is to shut down, isolate energy, apply locks/tags, release any residual energy, and then verify isolation. Deviating from this order risks incomplete energy control.
What should be done with padlock keys used in a lockout/tagout procedure?
Kept by the authorized employee who applied them
Attached directly to the machinery
Placed in a common tool room
Given to the supervisor
The authorized employee retains padlock keys to maintain control and accountability. Centralized storage can lead to unauthorized removal of locks.
When should lockout/tagout procedures be reviewed and updated?
Only after an accident occurs
When a new safety manager is hired
Only every ten years
Whenever equipment or processes change
Procedures must be reviewed when equipment, processes, or energy sources change to ensure continued effectiveness. Regular updates prevent gaps in safety controls.
Which action best verifies that energy has been effectively isolated?
Attempt to start or actuate the equipment
Review the lockout paperwork
Inspect the tag visually
Notify other employees
Attempting to start the equipment confirms no energy is being supplied. Administrative checks alone cannot guarantee zero energy state.
Which information must appear on a lockout/tagout tag?
Employee name and date applied
Machine color code
Company logo only
Supervisor's phone number
Tags must include the name of the authorized employee and the date to identify who applied the lock and when. This ensures clear accountability.
A machine has electrical, hydraulic, and pneumatic energy sources. Which combination of actions is required for proper isolation?
Only bleed pneumatic lines and remove guards
Only disconnect electrical power and close hydraulic valves
Apply electrical lock and paint all valves
Disconnect electrical power, close hydraulic valves, and bleed pneumatic lines
Proper isolation requires addressing all energy types: electrical, hydraulic, and pneumatic. Bleeding pneumatic lines removes stored air pressure that could cause movement.
What critical step must be taken when servicing capacitors to control stored electrical energy?
Discharge the capacitors before beginning work
Measure voltage periodically
Cover them with insulating tape
Only lock the main breaker
Capacitors can hold dangerous charge after power is off, so they must be discharged to safe levels. Locking only the main breaker does not address residual charge.
According to OSHA, how often must employers conduct formal inspections of their lockout/tagout procedures?
Every five years
Monthly
Only after an incident
At least annually
OSHA requires an annual inspection of LOTO procedures to ensure ongoing compliance and effectiveness. More frequent reviews may be necessary if deficiencies are found.
If lockout/tagout procedures do not exist for new equipment, what must the employer do before allowing maintenance?
Prohibit all maintenance indefinitely
Use verbal instructions only
Rely solely on manufacturer manuals
Develop written procedures and train authorized employees
Employers must create written LOTO procedures tailored to the new equipment and ensure authorized employees are trained. This formalizes energy control and maintains safety.
What is an essential component of an energy hazard analysis before implementing a lockout/tagout procedure?
Identification of all energy sources, potential hazards, and control methods
Listing only mechanical hazards
Reviewing unrelated safety policies
Consulting the shift supervisor only
An effective hazard analysis must identify every energy source, its associated hazards, and how each will be controlled. Limiting the analysis to one hazard type can leave risks unaddressed.
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Learning Outcomes

  1. Identify proper lockout/tagout steps for industrial equipment
  2. Demonstrate correct application of energy isolation devices
  3. Analyse potential hazards during machinery servicing
  4. Apply OSHA and regulatory standards to LOTO procedures
  5. Evaluate safety protocols to prevent unexpected energization

Cheat Sheet

  1. Master the Six LOTO Steps - Dive into the six essential steps of Lockout/Tagout: preparation, shutdown, isolation, lockout/tagout application, stored energy release, and verification. Following this step-by-step guide feels like unlocking a secret code to safety and ensures energy is properly controlled before any maintenance. Practice these steps until they become second nature and watch your confidence soar! OSHA Standard 1910.147
  2. Pick Durable Lockout/Tagout Devices - Using rugged, standardized lockout and tagout gear that stands up to weather and won't budge under pressure is a must. A solid device means no surprise slip-offs or accidental activations during critical tasks. Keep it consistent and compliant so your team can focus on maintenance, not gear failures! OSHA Standard 1910.147
  3. Spot All Energy Sources - Electrical, mechanical, hydraulic, pneumatic, chemical, and thermal energies each hide unique hazards. By pinpointing which energies you're dealing with, you can tailor your lockout/tagout plan to block them effectively. Think of it as mapping out enemy territory before the mission begins! OSHA Standard 1910.147
  4. Know When to Tagout - When lockout isn't practical, tagout steps in - if it offers equal protection. Understanding the criteria for using tags ensures you never cut corners and always stay safe. It's like knowing when to song-proof your headphones: you won't get rocked by surprise vibrations! OSHA Standard 1910.147
  5. Clarify Roles and Responsibilities - Authorized employees apply and remove lockout/tagout devices, while affected employees stay informed and steer clear. Clear communication and defined roles stop mishaps before they start. Treat it like a team sport, where everyone knows their position for the win! OSHA Standard 1910.147
  6. Schedule Inspections & Retraining - Even the best programs can drift, so regular check-ups and fresh training are key to staying sharp. Spotting deviations keeps safety in top form and reinforces best practices. Think of it like leveling up in a game: you don't want your skills to get rusty! OSHA Standard 1910.147
  7. Coordinate Group Lockouts - In team settings, every member must secure and verify their own lock or tag before work begins. Group lockouts unite individual efforts into a fortress of safety. It's like each player guarding their own goal in soccer - everyone's on defense! OSHA Standard 1910.147
  8. Boost Tagout Protection - When tagging rather than locking, add safeguards like blocking switches or removing isolating elements. These extras compensate for the lack of a physical lock and keep hazards at bay. Consider them backup heroes in your safety plan! OSHA Standard 1910.147
  9. Test Before You Trust - After applying locks or tags, always try to start the machine to confirm energy is zeroed out. This final check is the proof in the pudding that your lockout works and prevents surprises. It's like double-checking your parachute before jumping! OSHA Standard 1910.147
  10. Communicate Clearly - Announce lockout/tagout actions to all affected employees, both before and after maintenance. Clear alerts prevent accidental re-energization and ensure everyone stays on the same page. It's the difference between a smooth ride and a surprise roller coaster! OSHA Standard 1910.147
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