How far must excavated material be kept back from the edge of any trench excavation?

• A. 0.5 meters
• B. 1 meter
• C. 2 meters
• D. 3 meters

Answer: (B)

When considering the safe distance that excavated material must be kept from the edge of any trench excavation, the correct distance is 1 meter. This guideline is important for maintaining stability and safety during excavation activities. Keeping excavated material at least 1 meter away from the trench edge reduces the risk of collapses and ensures that the workers are protected from potential hazards associated with loose soil near the excavation site. This distance allows for safe movement around the trench and minimizes the chances of the soil being disturbed by weight or vibrations from equipment and personnel. Following this guideline is essential for maintaining a safe working environment in excavation activities.