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High-Risk Activities Flashcards

7 cards from real CSCS practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 7 High-Risk Activities flashcards as text

  1. What is the minimum height at which OSHA requires fall protection for general construction workers?

    Answer: 6 feet

    OSHA 29 CFR 1926.502 requires fall protection for construction workers when working at heights of 6 feet or more above a lower level.

  2. Which of the following is a leading indicator of risk on a demolition project?

    Answer: Presence of unidentified structures not on the demolition plan

    Unidentified structural elements pose unpredictable collapse hazards; identifying them before demolition begins is a critical proactive risk control.

  3. What does a Safety Data Sheet (SDS) Section 4 cover for a hazardous substance used in construction?

    Answer: First aid measures

    Section 4 of an SDS is dedicated to first aid measures, describing actions to take if a worker is exposed to the substance.

  4. A worker is instructed to enter a manhole with no ventilation equipment available. What should the worker do?

    Answer: Refuse entry and report the lack of adequate controls to a supervisor

    Entering a confined space without proper atmospheric testing and ventilation is life-threatening; workers have the right and responsibility to refuse unsafe work.

  5. What is the purpose of exclusion zones during crane operations?

    Answer: To prevent unauthorized personnel from entering the area of potential load drop or crane failure

    Exclusion zones protect workers from the risk of a dropped load, rope failure, or crane collapse during lifting operations.

  6. Which type of extinguisher is appropriate for a fire involving live electrical equipment on a construction site?

    Answer: CO2 (carbon dioxide) extinguisher

    CO2 extinguishers are non-conductive and safe to use on live electrical fires; water and foam conduct electricity and are dangerous near live equipment.

  7. Before lifting a load manually on a construction site, which factor should be assessed FIRST?

    Answer: The weight, shape, and stability of the load and the path of travel

    A manual handling risk assessment must evaluate the load's weight, bulk, and grip points, along with the route, to determine the safest method of handling.