1.
When should you lock out a machine?
Correct Answer
A. Anytime an employee could be injured if the machine was turned on.
Explanation
Locking out a machine should be done anytime an employee could be injured if the machine was turned on. This is because locking out the machine ensures that it cannot be accidentally or intentionally started while maintenance or repairs are being carried out. It is a safety precaution to prevent any potential harm to the employee working on or near the machine.
2.
What should you do if you put your lock on a machine, but a member of your maintenance staff is the one fixing it?
Correct Answer
D. Give the person who is in danger the key so that the machine isn't unlocked before the repairs are completed.
Explanation
The correct answer is to give the person who is in danger the key so that the machine isn't unlocked before the repairs are completed. This is the most appropriate action to take in order to prioritize the safety of the individual working on the machine. By giving them the key, you ensure that they have control over unlocking the machine once the repairs are finished, preventing any potential accidents or injuries.
3.
Why is it better to learn to read the LO/TO Work Instruction posted at you work station than to go by memory?
Correct Answer
D. All of these are correct.
Explanation
By learning to read the LO/TO Work Instruction posted at your work station, you can avoid potential risks and mistakes. Forgetting a step could lead to serious harm to yourself or others. Additionally, if you operate multiple machines regularly, relying on memory might cause confusion and result in locking out the wrong equipment. Knowing how to read the Work Instructions enables you to effectively lock out any machine in case of an emergency. Therefore, all of the given reasons are correct, emphasizing the importance of reading the LO/TO Work Instruction rather than relying on memory.
4.
On this LO/TO Work Instruction, what is the energy source used to power the motor?
American Stave Company – Blue River Wood Products
Work Instruction Document Control Number: WIBR 6-1-112
Document Title: Lockout/Tag Out (Chainsaw) Revision: C Effective Date: 8/18/09
NAME OF MACHINE OR EQUIPMENT: Chainsaw
PURPOSE OF THE LOCKOUT: A lockout is to be used when repairing, maintaining, cleaning, or any other task in which unexpected energy release is possible.
AUTHORIZATION: Only employees identified as authorized and trained in lockout/tag out procedures for above named equipment will work on the equipment.
ENERGY SOURCES: Hazard analysis performed on this piece of equipment revealed the following energy source(s):
Electrical, Hydraulics, & Pneumatic
ENERGY ISOLATION PROCEDURE:
At Chainsaw controls, push red e-stop “pause” button on north wall at top of chainsaw stairs, turn disconnect to OFF position and push air pressure release valve in.
Place a lockout device on disconnect and on air dump.
Test Chainsaw to ensure that it cannot be turned on and all pressure is exhausted. Return the E-STOP to the STOP position.
Notify all affected employees in area of lockout.
ENERGY RESTORATION PROCEDURE:
After work is complete:
Reinstall all guards and make any necessary adjustments.
After ensuring area is clear of employees, tools, etc.; remove lockout devices, turn disconnect to “on” position and pull air dump handle out.
Test cycle machine to ensure it operates as expected.
If further adjustments are necessary, reinstall lockouts.
Remove lockout and notify appropriate personnel the equipment is ready for service.
Correct Answer
D. All of these are correct.
Explanation
The correct answer is "All of these are correct." This is because the hazard analysis performed on the equipment revealed that it has multiple energy sources, including electrical, hydraulics, and pneumatic. Therefore, all of these energy sources are used to power the motor of the chainsaw.
5.
Which of these is a step to restarting this machine after repairs have been made?
American Stave Company – Blue River Wood Products
Work Instruction Document Control Number: WIBR 6-1-123
Document Title: Lockout/TagOut (Rework Trash Belt) Revision: C Effective Date: 8/18/09
NAME OF MACHINE OR EQUIPMENT: REWORK TRASH BELT
PURPOSE OF THE LOCKOUT: A lockout is to be used when repairing, maintaining, cleaning, or any other task in which unexpected energy release is possible.
AUTHORIZATION: Only employees identified as authorized and trained in lockout/tag out procedures for above named equipment will work on the equipment.
ENERGY SOURCES: Hazard analysis performed on this piece of equipment revealed the following energy source(s):
Electrical
ENERGY ISOLATION PROCEDURE:
1. At Belt controls, press appropriate E-Stop to STOP position.
2. Locate disconnect between the rework catwalk and stacking line. Turn to “OFF” position
3. Place your lockout device on disconnect box.
4. Test machine to ensure that equipment cannot be turned on.
5. Notify all affected employees in area of lockout.
ENERGY RESTORATION PROCEDURE:
After work is complete:
- Reinstall all guards and make any necessary adjustments.
- After ensuring area is clear of employees, tools, etc.; remove lockout devices.
- Test cycle machine to ensure it operates as expected.
- If further adjustments are necessary, reinstall lockouts.
- Remove lockouts and notify appropriate personnel equipment is ready for service.
Correct Answer
B. After ensuring area is clear of employees, tools, etc.; remove lockout devices.
Explanation
The correct answer is to "After ensuring area is clear of employees, tools, etc.; remove lockout devices." This step is necessary to ensure that the machine can be safely restarted after repairs have been made. Removing the lockout devices indicates that the machine is no longer in a locked or disabled state and can be operated normally again.
6.
What is this type of energy isolation device called?
Correct Answer
A. Breaker
Explanation
A breaker is a type of energy isolation device that is used to interrupt the flow of electricity in case of an overload or short circuit. It is designed to automatically trip and disconnect the circuit when it detects an abnormal current. Breakers are commonly used in electrical systems to protect against damage and prevent electrical accidents.
7.
What is this type of energy isolation device called?
Correct Answer
B. Disconnect switch
Explanation
A disconnect switch is a type of energy isolation device used to completely shut off the power supply to a circuit or equipment. It is designed to provide a visible and reliable means of disconnecting the power source for maintenance, repairs, or in case of emergencies. Unlike a breaker or fuse that can be reset or replaced, a disconnect switch physically separates the circuit from the power source, ensuring that no electrical current can flow through. This makes it a crucial safety device in electrical systems, allowing workers to safely work on equipment without the risk of electric shock or injury.
8.
Which of these would you find in this picture?
Correct Answer
B. Panel B #11
Explanation
In the given options, Panel B #11 is the only one that matches the description of "what you would find in the picture". The other options mention different panels and a disconnect switch, which are not specified to be present in the picture. Therefore, Panel B #11 is the correct answer.
9.
On this LO/TO Work Instruction, where would I put my lock if I wanted to work on the 1/4 saw top guide?
American Stave Company – Blue River Wood Products
Work Instruction Document Control Number: WIBR 6-1-110
Document Title: Lockout/Tag Out (Fastline) Rev B Effective Date: 8/19/09
NAME OF MACHINE OR EQUIPMENT: Fastline
PURPOSE OF THE LOCKOUT: A lockout is to be used when repairing, maintaining, cleaning, or any other task in which unexpected energy release is possible.
AUTHORIZATION: Only employees identified as authorized and trained in lockout/tag out procedures for above named equipment will work on the equipment.
ENERGY SOURCES: Hazard analysis performed on this piece of equipment revealed the following energy source(s):
Electrical & Hydraulics
ENERGY ISOLATION PROCEDURE:
- At Fastline ¼ Block Saw, press E-STOP to STOP Position.
- East of Fastline ¼ Block Saw, locate Electrical Panel A. Flip breakers on electrical panel to OFF position for necessary equipment.
Equipment Breaker
Fastline – ¼ Block Saw Panel A #8
Fastline – Hydraulic Pump Panel A #4
½ Block Hydraulic Flipper Panel A #4
½ Block Conveyer Panel A #3
½ Block Reserve Conveyer Panel A #11 (Disconnect)
¼ Saw top guide Panel A #10
Feed Conveyer & rollers Panel A #10
- Place your lockout device on Breaker handle or disconnect.
- Test to ensure that it cannot be turned on. Press E-STOP to STOP position.
- Notify all affected employees in area of lockout.
ENERGY RESTORATION PROCEDURE:
After work is complete:
- Reinstall all guards and make any necessary adjustments.
- After ensuring area is clear of employees, tools, etc.; remove lockout devices.
- Test cycle machine to ensure it operates as expected.
- If further adjustments are necessary, reinstall lockouts.
- Remove lockout and notify appropriate personnel the equipment is ready for service.
Correct Answer
D. Panel A #10
Explanation
The correct answer is Panel A #10. According to the given work instruction, the lock should be placed on the breaker handle or disconnect of the Panel A #10 for the 1/4 saw top guide.
10.
Which of these would you have to do to properly lock out a breaker?
Correct Answer
A. Push the black button on the side to force the metal ring out.
Explanation
To properly lock out a breaker, you would need to push the black button on the side to force the metal ring out. This action ensures that the breaker is securely locked in the off position, preventing it from being accidentally turned on. Removing the fuse from inside the breaker panel or removing the yellow wire from the switch control are not necessary steps for locking out a breaker. The red knob is not mentioned as a method for locking out the breaker.
11.
Which of these would you have to do to properly lock out a disconnect switch?
Correct Answer
B. Turn the red knob until the holes line up.
Explanation
To properly lock out a disconnect switch, you would need to turn the red knob until the holes line up. This action ensures that the switch is in the off position and cannot be accidentally turned on. By aligning the holes, a lock can be inserted to prevent anyone from operating the switch, ensuring the safety of individuals working on the equipment.
12.
You are running the machine you run most days. It has stopped in the middle of a cut and you're not sure why. You try to restart it, but it doesn't turn on. Which is the best action to take next?
Correct Answer
D. Follow the instructions listed on the LO/TO Work Instruction posted at your work station. Then, go get maintenance. Give them the key to your lock so that the machine doesn't get unlocked before the repairs are completed.
Explanation
The best action to take next is to follow the instructions listed on the LO/TO Work Instruction posted at your work station. This ensures that you properly secure the machine before leaving it and prevents any unauthorized access or operation of the machine while it is being repaired. After following the instructions, you should then go get maintenance and give them the key to your lock so that they can complete the repairs.