Which of the following is NOT a type of conduit material?

Wood is not considered a type of conduit material primarily because conduit systems are designed for electrical wiring protection and require materials that can withstand environmental factors, mechanical stress, and potentially hazardous conditions. PVC, fiberglass, and aluminum are all suitable conduit materials:

• PVC is lightweight, resistant to corrosion, and often used for underground applications and in areas where moisture is present.

• Fiberglass is known for its high strength-to-weight ratio and resistance to various chemicals and environmental conditions, making it ideal for specialized applications.

• Aluminum is durable, non-magnetic, and lightweight, often used in situations where electrical grounding is necessary due to its conductivity and resistance to corrosion.

In contrast, wood does not possess these protective qualities and is not used for conduit applications, making it the correct choice as the option that does not fit within typical conduit materials.