What are the two types of detonating systems mentioned?

• A. Electric and Non-electric systems
• B. Nonel and Cordline systems
• C. Conventional and High Strength systems
• D. Safety and Risk systems

Answer: (B)

The correct answer highlights the specific types of detonating systems used in mining and blasting operations, distinguishing between Nonel (Non-Electric) and Cordline systems. Nonel systems utilize shock tube technology that provides a safe and reliable means of initiating a blast without using electricity, thereby minimizing the risk of accidental detonation from stray currents. Cordline systems, on the other hand, refer to traditional detonating cord systems, which rely on a detonator connected to a fabricated cord that detonates upon ignition.

These two types represent the primary categories of detonating systems utilized in the field, and understanding their differences is crucial for ensuring safe and effective blasting operations. The focus on these systems aligns with industry practices and regulations, emphasizing safety, efficiency, and reliability in explosive operations.

Other choices present categories that don't accurately capture the primary types of detonating systems relevant to blasting in mining. For instance, conventional and high strength systems refer more to the characteristics of explosives rather than the initiation system types. Similarly, safety and risk systems focus on broader operational aspects rather than specific detonation methodologies.