Question

Which of the following conditions, combined with Type A soil and a 40-ton piece of equipment near the edge of the trench, suggests potential risk factors?

A) Presence of wet conditions
B) Absence of any equipment near the trench
C) Adequate shoring and shielding at the trench site
D) Soil compaction in the vicinity of the trench edge

Answer 1

The presence of wet conditions combine with Type A soil and a 40-ton piece of equipment near the edge of a trench to form a potential risk factor for soil instability and trench collapse.

Step-by-step explanation:

In response to the question about the potential risk factors associated with a trench and a 40-ton piece of equipment, we can identify certain conditions that may increase danger. The presence of Type A soil is considered to be the most stable soil type for trench operations; however, the presence of wet conditions can compromise its stability. The options given in the query underscore a variety of risk factors, but the presence of wet conditions near a trench with a 40-ton piece of equipment could possibly lead to soil instability and increase the risk of a trench collapse. In contrast, the absence of equipment near the trench, adequate shoring and shielding at the site, or soil compaction would not inherently suggest potential risk if properly managed.