Material Testing Lab MCQ Questions CA-I

Which of the following is a measure of a material's ability to resist deformation?

• Durability

• Strength

• Permeability

• Brittleness

Durability of a material refers to its ability to withstand:

• Compressive load

• Tensile stress

• Environmental degradation

• Impact load

Which of the following is not a mechanical property?

• Toughness

• Hardness

• Conductivity

• Elasticity

The ability of a material to return to its original shape after deformation is called:

• Plasticity

• Elasticity

• Brittleness

• Malleability

Which of the following properties directly affects the long-term performance of concrete?

• Density

• Durability

• Tensile strength

• Yield strength

Tensile strength is defined as the:

• Stress at which material starts deforming plastically

• Maximum stress a material can withstand under tension

• Ultimate load divided by area

• Deformation per unit length

Which of the following is used to find tensile strength of concrete?

• Split tensile test

• Flexural test

• Compression test

• Rebound hammer test

Tensile strength of concrete is approximately ____ of its compressive strength.

• 10%

• 20%

• 40%

• 60%

Ductile materials show a prominent:

• Ultimate strength

• Yield point

• Brittle fracture

• Linear elastic region only

Which of the following is not a ductile material?

• Mild steel

• Aluminium

• Cast iron

• Copper