3.1 Construction Safety Standards - Excavation

12 Questions | By Pmh1safe | Updated: Mar 22, 2022 | Attempts: 643

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3.1 Construction Safety Standards - Excavation - Quiz

This quiz is to test the knowledge of Kiewit employees on their knowledge of safe practices of excavation.

Questions and Answers

1.

How is this trench in violation?
- A.
  
  No barriers to prevent entry
- B.
  
  Insufficient means of egress
- C.
  
  Unacceptable Shoring
- D.
  
  All of the Above
- E.
  
  Looks great.
2.

What is the hazard in this picture?
- A.
  
  There is no hazard
- B.
  
  Vibrations from equipment overhead
- C.
  
  Possible cave-in
- D.
  
  Fumes from overhead equipment
- E.
  
  Sloped toward hole at the top of the cut which could allow for falling debris
3.

Which soil type has the greatest compressive strength rating 1.5 tons per square foot?
- A.
  
  Type A
- B.
  
  Type B
- C.
  
  Type C
- D.
  
  Type D
- E.
  
  None of the Above
4.

What needs to be done before you start to excavate?
- A.
  
  Evaluate soil conditions.
- B.
  
  Construct protective systems.
- C.
  
  Utility locate
- D.
  
  Provide safe access
- E.
  
  All of the Above
5.

Does this excavation need to be inspected every day by a competent person?
- A.
  
  Yes
- B.
  
  No
6.

How far away from an excavation should spoils be placed?
- A.
  
  Right next to excavation as long as it doesn't fall back in.
- B.
  
  At least 2 feet from the excavation.
- C.
  
  Wherever is the most convenient.
- D.
  
  Within a foot to allow for reach of excavator.
7.

Check all the apply?
- A.
  
  The ladder is too short and should be an extension ladder not a step ladder
- B.
  
  Looking at the soil type the walls of the cut should be sloped
- C.
  
  The ladder should be cleaned off
- D.
  
  Employees should never be exposed to an excavation that could collapse
- E.
  
  Looks good to me
8.

Can weather or climate affect how a trench protective system needs to be designed?
- A.
  
  YES
- B.
  
  NO
9.

What can be done to prevent vehicles from entering an excavation? Mark all that apply.
- A.
  
  Install Barricades
- B.
  
  Hand and Mechanical Signals
- C.
  
  Put yourself in front of the vehicle
- D.
  
  Berms and Stop Logs
- E.
  
  Slope Soil away from Excavation
10.

Which of the following is the greatest risk of an excavation?
- A.
  
  Asphxiation
- B.
  
  Inhalation of toxic materials
- C.
  
  Fire
- D.
  
  Moving Machinery
- E.
  
  Cave-ins
11.

There is usually warning before a cave-in.
- A.
  
  TRUE
- B.
  
  FALSE
12.

_______ is a technique used to prevent cave-ins by employing a specific angle on the sides of the excavation.