Welding and Joining Techniques Quiz

<p>High-intensity light radiation and electrical hazards</p> Signup and view all the answers

<p>Adhesive bonding</p> Signup and view all the answers

<p>The four types of joining classified in welding applications are permanent, semi-permanent, life-limited, and temporary. Permanent joining involves two parts remaining connected forever, such as welding. Semi-permanent joining includes brazing and soldering, with brazing involving a higher temperature and shallow melt on the surface, while soldering involves lower temperatures and parts that are not melted. Life-limited joining utilizes adhesive bonding with mechanical interlocking or self-locking. Temporary joining involves the use of screws, pins, nails, and bolts, but requires significant excess material, making it more costly and slower.</p> Signup and view all the answers

<p>The five main types of weld categorized by AWS are arc welding (AW), resistance welding (RW), Oxy Fuel-gas Welding (OFW), Solid-state welding (SSW), and other welding (Radiation source).</p> Signup and view all the answers

<p>The hazards associated with arc welding include high-intensity light radiation, infra-red radiation, ultraviolet radiation, electrical hazards, and airborne fumes. These hazards can be mitigated by wearing helmets for eye protection, avoiding exposure of skin to infra-red radiation, ensuring complete coverage with protective gear for ultraviolet radiation, taking precautions to avoid electric shock in wet places, and managing exposure to airborne fumes and metal fumes by following occupational exposure limits and using appropriate protective equipment.</p> Signup and view all the answers

<p>The applications of welding mentioned in the text include joining, repair, reconditioning, improvement or change of local properties, and artistic purposes. Additionally, welding is the only process that can be used to repair cracks and defects, as well as recondition corroded or eroded materials that would otherwise need replacing.</p> Signup and view all the answers

<p>Graded transition joints can be used to increase desired properties of metals by facilitating a smooth transition between different materials or sections, thereby enhancing the overall properties of the joint. This allows for improved performance and functionality in various applications.</p> Signup and view all the answers