info@safetysourceonline.com | 1-800-358-4428

Login

Trenching and Shoring: Excavation Safety – SSC003E (13 Min.)

Watch Video

Please login to take the exam.

1

What is the most significant hazard associated with trenching operations?

Falling tools
Cave-ins
Loud noise
Slippery surfaces

2

Which of the following is NOT an acceptable cave-in protection method?

Sloping
Shielding
Shoring
Digging deeper

3

How far must excavation material piles be kept from the edge of the trench?

1 foot
2 feet
3 feet
5 feet

4

Trenches deeper than 4 feet must include which of the following?

Rope barriers
Guard dogs
Fixed means of egress
Floodlights

5

At what trench depth is a protective system designed by a licensed engineer required?

10 feet
15 feet
20 feet
25 feet

6

Workers are allowed in the trench while heavy equipment is digging.

True
False

7

A competent person must inspect the trench only once per week.

True
False

8

Trench boxes may ride up to two feet above the trench bottom if conditions are safe.

True
False

9

Metal ladders are acceptable near electric utility hazards.

True
False

10

All workers on a trench site must wear hard hats.

True
False