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Difficulty: EasyPersonal Protective Equipment (PPE)

When operating stationary rotating equipment in an automotive shop, such as a drill press or bench lathe, why is wearing loose-fitting gloves or baggy clothing strictly prohibited?

  1. A
    Loose cloth fibers can create an electrical short circuit that bypasses the tool grounding system.
  2. The loose material can easily snag on rotating spindles and pull the operator into the machine.Answer
  3. C
    Friction between cloth fibers and rotating steel causes spontaneous combustion in nearby solvent containers.
  4. D
    Wearing gloves alters operator tactile feedback, forcing the drill press to run at excessive spindle speeds.

Answer

Loose material can easily snag on rotating spindles and pull the operator into the machine.
The correct answer explains that loose gloves, dangling jewelry, unbuttoned long sleeves, and loose clothing can become caught in rapidly spinning spindles, chucks, or workpieces. This mechanical entanglement can drag an operator's hands or body directly into the cutting zone before the machine can be stopped.

Step-by-Step Solution

1
Identify the primary mechanical hazard of stationary rotating power tools.
Equipment like drill presses and lathes feature high-torque rotating chucks, spindles, and workpieces.
Understanding the mechanism of injury is necessary to determine appropriate PPE rules.
2
Evaluate the interaction between loose PPE (such as gloves or baggy sleeves) and rotating machinery.
Loose fabric, gloves, long hair, or jewelry can instantly catch on a turning spindle.
Unlike flying chip hazards where gloves provide barrier protection, rotating machinery introduces a fatal or severe entanglement risk.
3
Select the safety rule governing PPE around rotating equipment.
Gloves, long sleeves, ties, and jewelry must be removed, and hair tied back, to prevent entanglement.
Eliminating snag points prevents hands and limbs from being pulled into the point of operation.

Key Concept

Appropriate PPE Selection and Entanglement Hazards Around Rotating Machinery
Estimated Time:45s
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Topics

Personal Protective Equipment (PPE)

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