Engineering Physics - quiz

Stress is directly proportional to

• Torsion

• Elastic

• Plastic

• Strain

What is the unit of elastic modulus?

• Pascal

• Joule

• Newton

• Meter

Which of the following is a type of elastic modulus?

• Flexural modulus

• Density

• Thermal conductivity

• Electrical resistivity

Poisson's ratio is defined as the ratio of

• Shearing stress to shear strain

• Lateral strain to longitudinal strain

• Force to area

• Work done to energy

What does strain - strain diagram illustrate?

• Relationship between force and time

• Relationship between stress and strain

• Temperature change in materials

• Acceleration of an object

What is tensile strength ?

• Maximum stress before failiure

• Ability to withstand compression

• Ability to conduct heat

• Resistance to deformation

Which of the following affects elastic modulus?

• Temperature

• Material type

• Microstructure

• All the above

What is called as couple in physics ?

• Two forces in same direction

• Two equal and opposite forces

• A single force

• Torque applied to beam

What is the unit of torque?

• Joule

• Newton meter

• Pascal

• Watt

What does a torsional pendulum measure?

• Temperature

• Time period of oscillation

• Force applied

• Pressure in fluids