Question:
____is a built up board having a core of light material face on both side with a relatively thin layer of material having high strength properties.
____is a built up board having a core of light material face on both side with a relatively thin layer of material having high strength properties.
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In a "Sandwich" structure, the "filling" (core) is light, and the "bread" (faces) is strong. This design is widely used in aerospace and high-end furniture.
Updated On: Aug 7, 2026
- Core board
- Fiber board
- Sandwich board
- Particle board
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The Correct Option is C
Solution and Explanation
Step 1: Understanding the Question:
The question explores the types of engineered wood products. It describes a multi-layered composite board designed to optimize the strength-to-weight ratio.
Detailed Explanation:
• Engineered boards are developed to utilize wood waste or low-density wood species efficiently.
• A Sandwich board (or sandwich panel) is a structured composite.
• It consists of three main components: a thick, low-density, and lightweight core (like balsa wood, plastic foam, or honeycomb) and two thin, high-density facing layers (like plywood, metal, or fiber-reinforced plastic).
• The engineering principle here is to place the high-strength materials at the outer surfaces where stresses are highest during bending, while the light core keeps the total weight low.
• Analysis of other options:
- Core board (or blockboard) has a core of solid wood strips.
- Fiber board is made of wood fibers compressed together.
- Particle board is made of wood chips and resin.
Step 2: Final Answer:
The description provided matches the definition of a Sandwich board.
The question explores the types of engineered wood products. It describes a multi-layered composite board designed to optimize the strength-to-weight ratio.
Detailed Explanation:
• Engineered boards are developed to utilize wood waste or low-density wood species efficiently.
• A Sandwich board (or sandwich panel) is a structured composite.
• It consists of three main components: a thick, low-density, and lightweight core (like balsa wood, plastic foam, or honeycomb) and two thin, high-density facing layers (like plywood, metal, or fiber-reinforced plastic).
• The engineering principle here is to place the high-strength materials at the outer surfaces where stresses are highest during bending, while the light core keeps the total weight low.
• Analysis of other options:
- Core board (or blockboard) has a core of solid wood strips.
- Fiber board is made of wood fibers compressed together.
- Particle board is made of wood chips and resin.
Step 2: Final Answer:
The description provided matches the definition of a Sandwich board.
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