AQA Alevel DT Unit 3.3 Testing woods

What is the main focus of a tensile strength test?

• Color change

• Deflection measurement

• Temperature change

• Sound production

What is a common limitation of workshop tests?

• Limited tools and equipment

• Unlimited resources

• Excessive time

• Too many workers

What does this diagram show?

• Diagram of a tensile strength test setup with weights and measuring tools.

• Diagram of a compressive strength test setup with springs and gauges.

• Diagram of a shear strength test setup with clamps and levers.

• Diagram of a torsion test setup with cranks.

What does hardness measure in materials?

• How easily materials resist abrasion and indentation

• The color of the material

• The weight of the material

• The temperature of the material

How can consistency be ensured in hardness tests?

• By using the same tools and methods

• By changing the tools each time

• By using different materials

• By varying the temperature

What happens to the most brittle materials when tested for toughness?

• They bend

• They snap

• They melt

• They expand

How can woods be molded?

• Using steam bending and laminating

• By freezing and thawing

• By applying electrical current

What happens at the yield point on a tensile testing graph?

• The material snaps

• Elastic deformation becomes irregular

• The material starts to stretch

• The material returns to its original shape

What is the purpose of identifying the yield point in tensile testing?

• To determine when the material will snap

• To find when elastic deformation becomes irregular

• To measure the temperature

• To change the material's color

What is the role of the pendulum in the toughness testing machine?

• A) To hold the specimen

• B) To measure the weight

• C) To swing and impact the specimen

• D) To provide light