Kaushal Bodh Class 8 Chapter 3 Extra Questions MCQ Working with Wood and Bamboo - #NCSOLVE 📚

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Working with Wood and Bamboo Class 8 Extra Questions MCQ

Working with Wood and Bamboo Class 8 Extra Questions

Question 1
What is engineered wood?
Answer:
Engineered wood is wood made by combining recycled wood, sawdust, tiny wood particles, and wooden fibre. Examples include plywood and MDF.

Question 2.
Name two safety measures to follow while working with wood.
Answer:
The following two safety measures should be followed while working with wood
(i) Use safety goggles and masks to protect eyes from wood dust.
(ii) Keep the workspace organised and free from unnecessary dust and wood cuttings.

Question 3.
Why is wood considered a renewable resource?
Answer:
Wood is considered renewable because trees can be planted to replace the ones that have been cut, allowing the resource to regenerate.

Question 4.
What is the difference between hardwood and softwood?
Answer:
The difference between hardwood and softwood is as follows

Hardwood	Softwood
Comes from broad-leaved trees like mango and teak.	Comes from coniferous trees like pine and deodar.
It is dense, strong and difficult to cut or shape.	It is light, less dense and easy to cut and shape.

Question 5.
Name two sports that rely on wooden materials.
Answer:
The two sports that rely on wooden materials are as follows
(i) Cricket (bats)
(ii) Hockey (sticks)

Question 6.
What is plywood?
Answer:
Plywood is a type of engineered wood made by pressing thin layers of wood together with adhesive under high pressure.

Question 7.
Give two examples of hardwood trees.
Answer:
The following are two examples of hardwood trees
(i) Babool
(ii) Mango (or Jackfruit)

Question 8.
Give two examples of softwood trees.
Answer:
The following are two examples of softwood trees
(i) Pine
(ii) Deodar (or Eucalyptus)

Question 9.
What is bamboo and how is it different from trees?
Answer:
Bamboo is a perennial grass, not a tree. It grows back when cut, making it highly sustainable. It is different from trees because trees have woody stems and grow slowly, while Bamboo has a hollow jointed stem and grows quickly.

Question 10.
Why should wood ideally be used after a tree has completed its lifecycle?
Answer:
Wood should ideally be used after a tree has completed its lifecycle because it is the sustainable approach that ensures we do not harm growing forests and maintain ecological balance.

Question 11.
Explain why wood and bamboo are preferred over concrete and bricks for building houses. Give at least three reasons.
Answer:
Wood and bamboo are preferred over concrete and bricks for the following reasons

• They keep rooms cooler in summer and warmer in winter due to their natural insulating properties.
• They are renewable resources that can be replanted and regrown.
• They are lighter in weight, making construction easier.

Question 12.
Describe the Fingernail Test and explain its purpose.
Answer:
The Fingernail Test is a simple method to determine whether wood is soft or hard. To perform this test, press yourthumbnail against a wooden surface and pull it along. If it leaves a scratch mark, the wood is softwood. If it leaves no mark, the wood is hardwood.
The purpose of this test is, it helps in selecting the appropriate type of wood for different purposes and in choosing the right tools and techniques for working with it.

Question 13.
What are the different uses of various types of wood mentioned in the chapter?
Answer:
The different uses of various types of wood are as follows

• Babool and Mango (Hardwood) Construction of houses, bridges, window frames and flooring.
• Jackfruit (Hardwood) Furniture and small objects like pooja stands and handicrafts.
• Pine and Deodar (Softwood) Lightweight furniture, shelves and packing boxes.
• Teak/Sagawan Building ships and outdoor furniture.

Question 14.
Why is it important to practice sustainable use of wood? Explain with reference to the Atharva Veda.
Answer:
Sustainable use of wood is important because while wood is a renewable resource, its use becomes unsustainable if consumption exceeds the number of new trees planted. In some areas like high altitudes in the Himalayas, trees do not grow easily, and once cut, entire forests can disappear.

The Atharva Veda emphasises this principle: “Whatever we dig out from you, 0 Earth! May that have quick regeneration. May we not damage our vital habitat and Earth.”
This ancient wisdom teaches us to use resources responsibly and ensure their regeneration for future generations.

Question 15.
List the tools and materials needed for working with wood and bamboo.
Answer:
The tools and materials needed for working with wood and bamboo are as follows

• Tools Needed: Tri-square, hand saw, wood file, plane, claw hammer, measuring tape, steel ruler, bench vice, brush, clamps, hand drill and cutter.
• Materials Needed: Nails, screws, pencil or chalk, wood glue, sandpaper, varnish, softwood and/or bamboo, cardboard, synthetic resin adhesive and cellophane tape.

Question 16.
Describe the different types of wood and their characteristics.
Answer:
The different types of wood and their characteristics can be described as follows

• Hardwoods such as Babool and Mango are strong, dense and durable, suitable for heavy construction purposes.
• Softwoods like Pine and Deodar are light in weight and easy to cut, making them useful for simple structures.
• Jackfruit wood has an attractive grain and moderate strength, commonly preferred for decorative items.
• Teak wood is highly resistant to water, termites, and decay, ensuring long-lasting use.
• Engineered wood like Plywood is economical, versatile, and made from compressed wood layers for various applications.

Question 17.
Discuss the importance of bamboo as an alternative to wood.
Answer:
Bamboo is an important alternative to wood due to its useful properties and wide applications.

Its importance is as follows

• Bamboo is strong, flexible and lightweight, making it suitable for various construction purposes.
• It is widely used for making furniture, houses, baskets and musical instruments.
• It grows very fast and matures within a few years, ensuring quick availability.
• It regrows naturally from its roots system without the need for replanting, making it highly sustainable.
• It is eco-friendly, helps in reducing carbon dioxide and prevents soil erosion. It also supports rural livelihoods and provide economic support to farmers.

Question 18.
Describe the process of maintaining and repairing wooden items.
Answer:
The process of maintaining and repairing wooden items involves the following essential steps

• First, identify issues like cracks, loose joints, or damaged parts and collect necessary tools.
• Apply wood glue to fix joints and use fillers to repair cracks and holes properly.
• Reinforce weak parts using screws, nails or brackets to ensure strength.
• Smooth the surface by sanding and apply polish, paint or varnish for protection.
• Check the stability and durability of the item to ensure it is safe and ready for use.

Question 19.
While visiting a furniture workshop, Aman noticed that a carpenter was using a board made by joining several thin layers of wood with adhesive under high pressure. The carpenter explained that this material is strong and commonly used for making furniture. What is this type of engineered wood called?
Answer:
This material is called plywood. It is an engineered wood made by bonding thin layers of wood together with adhesive under high pressure, making it strong, durable and suitable for furniture making.

Question 20.
A school noticed that some wooden benches and desks had become loose and damaged because they were not maintained regularly. The school had to spend extra money on repairs and replacements. Why is regular maintenance of wooden objects important?
Answer:
Regular maintenance of wooden objects is important because

• It extends the lifespan of wooden items.
• Keeps objects safe to use by ensuring structural integrity.
• Saves money by avoiding the need for costly replacements.
• Preserves the quality of the wood by protecting it from moisture, insects and wear.

Question 21.
As part of a vocational education programme, a group of students visited a carpenter’s workshop. During the visit, they observed carpenters using different tools, selecting suitable wood, and making various wooden products. What can students learn from a visit to a carpenter’s workshop?
Answer:
From a visit to a carpenter’s workshop, students can learn many practical and useful skills

• They observe the proper use of tools like saws, planes and drills with safety measures.
• They understand how different types of wood are selected based on strength, grain and durability.
• They learn basic techniques of cutting, shaping, joining and finishing wood.
• The visit develops skills like accurate measurement, patience and careful handling of materials.
• Students gain awareness about professional practices, time management, reducing waste and career opportunities in carpentry.

Question 22.
Answer the following questions based on the concepts represented in diagram/images from this chapter.
(i) Identify any two tools shown in the image and write their uses.
(ii) Which tool is used for cutting wood and which is used for smoothing it?
(iii) Which tool is used to drive nails into wood and which is used to smooth wooden surfaces?

Answer:
(i) Two tools shown in image and their uses are as follows

• Hand Saw Used for cutting wood into required shapes and sizes.
• Claw Hammer Used for driving nails into wood and removing them.

(ii) A hand saw is used for cutting wood into required sizes and shapes.
A plane is used for smoothing the surface of wood, making it even and ready for finishing work like polishing or varnishing.

(iii) A claw hammer is used to drive nails into wood, while a plane is used to smooth wooden surfaces and make them even.

Question 23.
Answer the following questions based on the concepts represented in diagram/images from this chapter.

(i) Name two items made using bamboo shown in the image.
(ii) Why is bamboo considered a suitable material for making musical instruments and handicrafts?
(iii) Mention two properties of bamboo that make it useful for making daily-use products.
Answer:
(i) Two items made using bamboo are

• Bamboo Flute Used for producing musical sound by blowing air into it.
• Ektara A simple one-string musical instrument used in folk music and songs.

(ii) Bamboo is suitable because it is strong, lightweight, flexible, and eco-friendly.
It is easy to shape and carve, and it grows quickly, making it a sustainable material for making instruments and handicrafts.

(iii) Two properties of bamboo that make it useful for making daily-use products are as follows

• Bamboo is strong and lightweight, which makes it durable and easy to carry for making items like furniture, baskets, and utensils.
• Bamboo is flexible and easy to cut or shape, making it suitable for various household and craft products.

Question 24.
Complete the following flow chart related to the Woodworking Steps.

Answer:
(a) Cutting
(b) Assembly

Question 25.
Complete the following flow chart related to the Bamboo Maintenance.

Answer:
(a) Nailing
(b) Smooth the surface

Question 26.
Create a concept map showing the main steps involved in making a wooden product.
Answer:

Question 27.
Create a concept map showing the materials and processes required for finishing a wooden or bamboo product.
Answer:

Question 28.
Your school is organising a workshop on woodworking and bamboo craftsmanship. You have been invited as a skilled carpenter and bamboo artisan to guide students. Assume the role of the artisan and explain the importance of wood and bamboo as renewable resources, the types of wood, the tools and materials used, different methods of joining wooden parts, the importance of making prototypes, and the safety precautions to be followed while working with wood and bamboo.
Answer:
Do it yourself.

Question 29.
Discuss the importance of wood and bamboo in daily life, the need for sustainable use of natural resources, the advantages of using bamboo and engineered wood as alternatives to natural timber, and the role of woodworking skills in creating durable and useful products.
Answer:
Do it yourself.

Working with Wood and Bamboo Class 8 MCQ

Question 1.
Which of the following is not a use of wood mentioned in the chapter?
(a) Making doors and furniture
(b) Construction material
(c) Making glass
(d) Making paper
Answer:
(c) Making glass

Question 2.
Which ancient scripture talks about sustainable use of Earth’s resources?
(a) Rigveda
(b) Yajurveda
(c) Samaveda
(d) Atharva Veda
Answer:
(d) Atharva Veda

Question 3.
What is the Fingernail Test used for?
(a) To check the age of wood
(b) To determine if wood is soft or hard
(c) To measure the length of wood
(d) To test the quality of varnish
Answer:
(b) To determine if wood is soft or hard

Question 4.
What does MDF stand for?
(a) Modern Design Furniture
(b) Medium Density Fibreboard
(c) Multiple Design Format
(d) Material Density Factor
Answer:
(b) Medium Density Fibreboard

Question 5.
Which type of wood is easier for beginners to work with?
(a) Hardwood
(b) Softwood
(c) Teak
(d) Mango wood
Answer:
(b) Softwood

Question 6.
Bamboo is classified as
(a) A tree
(b) A shrub
(c) A perennial grass
(d) A vine
Answer:
(c) A perennial grass

Question 7.
Which wood is commonly used for building ships and outdoor furniture?
(a) Pine
(b) Eucalyptus
(c) Teak/Sagawan
(d) Deodar
Answer:
(c) Teak/Sagawan

Question 8.
What should you wear to protect your eyes from wood dust?
(a) Sunglasses
(b) Safety goggles
(c) Reading glasses
(d) Contact lenses
Answer:
(b) Safety goggles

Question 9.
Engineered wood is made from
(a) Fresh tree logs only
(b) Plastic materials
(c) Recycled wood, sawdust and wooden fibre
(d) Metal particles
Answer:
(c) Recycled wood, sawdust and wooden fibre

Question 10.
Which region in India has maximum bamboo growth?
(a) Western India
(b) Southern India
(c) Northern plains
(d) North-Eastern India
Answer:
(d) North-Eastern India

Question 11.
Why are wood and bamboo preferred over concrete and bricks for building houses?
(a) They are cheaper
(b) They keep rooms cooler in summer and warmer in winter
(c) They are easier to transport
(d) They are available everywhere
Answer:
(b) They keep rooms cooler in summer and warmer in winter

Question 12.
Which of the following
(a) Pine
(b) Deodar
(c) Mango
(d) Eucalyptus
Answer:
(c) Mango

Question 13.
What tool is used to wood?
(a) Hammer
(b) Saw
(c) Plane
(d) Drill
Answer:
(c) Plane

Question 14.
In the Fingernail Test, leaves a scratch mark,
(a) Hardwood
(b) Softwood
(c) Plywood
(d) Rotten wood
Answer:
(b) Softwood

Question 15.
Which softwood is paper?
(a) Teak
(b) Jackfruit
(c) Eucalyptus/Nilgiri
(d) Babool
Answer:
(c) Eucalyptus/Nilgiri

Fill in the Blanks

1. Wood is a ____________ resource that can be replanted.
Answer:
Renewable

2. ____________ and ____________ are two materials that keep rooms cooler in summer and warmer in winter.
Answer:
Wood and bamboo

3. The ____________ is used to check whether wood is soft or hard by pressing it against the wooden surface.
Answer:
Fingernail Test (or thumbnail)

4. Bamboo is a ____________ grass that grows back when cut.
Answer:
Perennial

5. ____________ is a type of engineered wood made from sawdust and wooden fibre.
Answer:
MDF (Medium Density Fibreboard) or Plywood

6. ____________ wood is used for building ships and outdoor furniture.
Answer:
Teak (or Sagawan)

True or False

1. Wood is a non-renewable resource.
Answer:
False

2. Hardwood requires stronger tools and specific techniques to work with.
Answer:
True

3. Bamboo is a type of tree.
Answer:
False

4. Safety goggles and masks should be used while working with wood to protect from wood dust.
Answer:
True

5. Softwood is more challenging to work with than hardwood.
Answer:
False

6. Plywood is made from recycled wood materials.
Answer:
True

The post Kaushal Bodh Class 8 Chapter 3 Extra Questions MCQ Working with Wood and Bamboo appeared first on Learn CBSE.

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