How should a blasting cap be attached to a detonator cord such as primacord?

• A. By soldering
• B. Taped into position with the base pointing in the direction of initiation
• C. Using a rubber band
• D. By tying with a string

Answer: (B)

Attaching a blasting cap to a detonator cord, such as primacord, requires proper technique to ensure safety and effectiveness. When a blasting cap is taped into position with the base pointing in the direction of initiation, it ensures that the detonation wave travels directly into the blasting cap when the cord is initiated. This method provides a secure and direct connection, minimizing the risk of misfires or accidental initiation because it maintains the integrity of the connection.

Using tape also allows for a quick and reliable method to hold the blasting cap in place without the risk of it shifting during handling or setup. Additionally, positioning the base toward the direction of initiation ensures that the energy from the detonator cord properly initiates the blasting cap, which is critical for consistent performance in blasting operations.

Other methods, such as soldering, using a rubber band, or tying with string, do not provide the same level of reliability or safety. Soldering may not be suitable due to potential damage or alteration of the cap’s function. Rubber bands and strings could easily fail or slip, resulting in an insecure attachment and increasing the risk of misfire or erratic performance during an operation.