Tti Tailgate Safety Topic - July 22, 2013

5 Questions | Total Attempts: 60

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Tti Tailgate Safety Topic - July 22, 2013

Excavations in Construction: Trenching


Questions and Answers
  • 1. 
    One cubic yard of soil can weigh as much as:
    • A. 

      100 pounds

    • B. 

      750 pounds

    • C. 

      1500 pounds

    • D. 

      3000 pounds

  • 2. 
    Before workers can do any work in a trench, a "competent person" must conduction an inspection to identify and remove any potential hazards.  Inspections must be performed (click all that apply):
    • A. 

      After a rainstorm

    • B. 

      At the end of the day.

    • C. 

      At the start of every shift.

    • D. 

      Whenever conditions change

    • E. 

      Only if the client requires an inspection to be performed.

    • F. 

      At lunchtime and after any scheduled work breaks.

  • 3. 
    For all trenches deeper than 3 feet deep, OSHA requires sloping, benching, shoring, or shielding to protect workers from cave-ins.
    • A. 

      True

    • B. 

      False

  • 4. 
    For Type C soil, OSHA requires that the the walls be sloped:
    • A. 

      6 inches out for every 1 foot of trench depth

    • B. 

      18 inches out for every 1 foot of trench depth

    • C. 

      36 inches out for every 1 foot of trench depth

    • D. 

      Does not apply - the walls do not have to be sloped if the soil is Type C.

  • 5. 
    In the U.S., more than 800 construction workers die every year while on the job.  Out of those 800 workers, approximately how many of them die during trenching work?
    • A. 

      480

    • B. 

      240

    • C. 

      120

    • D. 

      40

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