CSLB C-46 Solar ContractorSafetyMedium

A solar installation crew is working on a new commercial building. During the panel installation, a worker accidentally drops a heavy tool from the roof onto the ground below, where other crew members are working. Which of the following safety measures was most likely insufficient or not properly implemented?

  1. ATool tethering or toe boards
  2. BProper ladder angle
  3. CPersonal fall arrest system
  4. DElectrical lockout/tagout procedures
Show answer & explanation

Correct answer: A. Tool tethering or toe boards

Falling objects pose a significant hazard on construction sites. Tool tethering prevents tools from falling when dropped, and toe boards (or other guardrail systems) at the edge of elevated work surfaces prevent objects from being kicked or rolling off the edge.

Why the other options are wrong

  • B. An incorrect ladder angle is a fall hazard for the user, not typically a cause of falling tools.
  • C. A personal fall arrest system protects the worker from falling, not objects dropped by the worker.
  • D. Lockout/tagout prevents unexpected energization of equipment; it's unrelated to dropping tools.

Falling Object Protection

Measures taken to prevent tools, materials, or other objects from falling from elevated work areas, protecting workers below.

  • Includes tool tethering, toe boards, and netting.
  • Essential for sites with overhead work.
  • Prevents struck-by hazards.

Memory trick: Don't let tools take a dive, protect the workers, keep them alive!

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