National High Speed Rail Corporation Civil Quality Control Lab Technician Interview Questions and Answers

Poisson ratio is the ratio of lateral strain to longitudinal strain in a material subjected to stress.

• It is a measure of the deformation of a material under stress.

• It is denoted by the symbol 'ν' (nu).

• It is a dimensionless quantity.

• It is used in the calculation of the elastic modulus of a material.

• For most materials, the Poisson ratio is between 0 and 0.5.

• Rubber has a Poisson ratio close to 0.5, while cork has a Poisso