The action of joining things securely is known as

• A. Bonding
• B. Cavitation
• C. Acceptance Test
• D. Certification Test

Answer: (A)

Joining parts securely is bonding. This term covers making a firm connection so two surfaces act as a single unit, whether by adhesive, welding, soldering, or other attachment methods. In emergency vehicles, bonding is crucial for structural joints, electrical grounding, and overall reliability under vibration and weather, ensuring the vehicle stays safe and functional on the road. Cavitation refers to vapor pocket formation in fluids and isn’t about joining materials. Acceptance tests and certification tests are procedures used to verify that systems meet requirements or standards, not the act of connecting components.