Question 80

The minimum burial depth for an underground LP-gas line that supplies an outdoor patio grill is 12 inches.

For safety and compliance with regulations, the minimum burial depth for underground LP-gas lines is set at 12 inches to protect the line from damage and environmental factors.

A) 6 inches

This option is incorrect as it does not meet the safety standards required for burying LP-gas lines. A burial depth of 6 inches is insufficient to protect the line from physical damage and potential hazards.

B) 8 inches

An 8-inch burial depth is also inadequate. Like the previous option, it fails to provide the necessary protection for an underground LP-gas line, increasing the risk of damage from surface activities.

C) 10 inches

While closer to the required depth, 10 inches still falls short of the minimum standard. This depth does not offer sufficient safety measures against potential hazards that could arise from improper burial.

D) 12 inches

This is the correct option as it meets the minimum standard for burial depth of underground LP-gas lines. A depth of 12 inches ensures adequate protection from damage and complies with safety regulations.

Conclusion

The correct answer is definitively 12 inches, as this depth is mandated for the safe installation of underground LP-gas lines. Options A, B, and C do not meet the necessary safety requirements, which emphasize the importance of proper burial depth to prevent accidents and ensure safe operation of gas lines.