What is a key advantage of the Nonel assembly during blasting?

• A. The detonation is always synchronized
• B. The tube remains intact and unaffected by explosives
• C. The assembly is cheaper to produce
• D. The assembly is easier to connect

Answer: (B)

The key advantage of the Nonel assembly during blasting is that the tube remains intact and unaffected by explosives. This characteristic is crucial because it ensures a level of safety and reliability in blasting operations. Unlike other types of detonators or blasting systems, the Nonel (non-electric) assembly minimizes the risk of accidental detonation due to shock waves or stray electrical currents, as it operates purely based on pressure waves in a gas-filled tube.

This intactness of the tube during the blasting process is essential for maintaining the integrity of the blasting circuit and the overall safety of the operation. It facilitates the controlled initiation of explosives without the risk of premature firing, allowing for more precise timing and execution of blasts, which can result in improved fragmentation and efficiency.

The other options, while they may present potential benefits, do not align as closely with the core operational advantages that the Nonel system is designed to provide. Cost-effectiveness and ease of connection are secondary considerations that may vary based on specific project needs or preferences, but the assurance that the tube remains intact and protected from explosive forces is paramount in ensuring safe blasting practices.