What type of explosives can be initiated by Cordline system?

• A. Cap-sensitive explosives
• B. Insensitively explosive materials like ANFO
• C. Liquid explosives only
• D. Highly volatile explosives

Answer: (B)

The Cordline system is specifically designed to initiate insensitively explosive materials, such as ANFO (Ammonium Nitrate Fuel Oil). This system utilizes a method of detonation that is safe and reliable for handling materials that do not easily detonate from a shock wave alone. ANFO, being an insensitive explosive, requires a suitable initiation system to effectively create a detonation wave. This makes the Cordline system ideal for use with these types of explosives, which are commonly employed in mining operations due to their stability and cost-effectiveness.

Other types of explosives mentioned in the options do not align with the Cordline system's intended use. Cap-sensitive explosives, for instance, require more sensitive initiation methods, as they can be set off by more minor disturbances or shock. Liquid explosives have unique characteristics and often require specific ignition sources. Lastly, highly volatile explosives are designed to be more sensitive and reactive, which is contrary to the safer handling characteristics required for materials like ANFO. Thus, recognizing that the Cordline system is tailored for insensitively explosive materials like ANFO provides clarity on its appropriate application in a mining context.