Manufacturing Practices (BT-106) - Important Questions

Describe the physical and mechanical properties of commonly used woods in manufacturing (hardwoods and softwoods). Explain the criteria for selecting wood for engineering applications and discuss the effect of common defects (knots, checks, warping) on performance.

List and describe the commonly used hand tools in woodworking (e.g., chisels, hand saws, planes, marking and measuring tools). For each tool, state its primary use, routine maintenance, and basic safety precautions.

Explain the working principles, main components, and typical applications of the following power woodworking machines: circular saw, band saw, planer (thicknesser), router, and radial arm saw. For each machine indicate typical operating parameters and precautions to ensure quality and safety.

Describe the methods of seasoning and storage of timber for fabrication. Discuss common seasoning defects, methods to detect them, and how proper preparation and storage influence the dimensional stability and strength of fabricated wooden components.

With neat sketches, explain the construction, advantages, and typical applications of the following joinery techniques: dovetail joint, mortise and tenon joint, and tongue and groove joint. Describe common variations and the reasons for choosing each type.

Describe the step-by-step fabrication process for a simple wooden drawer: material selection, preparation of a cutting list, sequence of operations (cutting, shaping, joinery), tooling required, finishing, and quality checks. Highlight common problems and remedies at each stage.

Compare adhesive bonding techniques used for wooden assemblies. Discuss types of adhesives (casein, PVA, resorcinol, polyurethane), joint preparation, clamping requirements, curing considerations, and testing methods for bonded joints.

Explain essential safety practices and personal protective equipment (PPE) for a woodworking workshop. Cover machine guarding, dust control, safe operating procedures for hand and power tools, and standard emergency response measures.