Uniform increase in temperature of, ΔT introduces initial _____
a) Normal strain
b) Strain
c) Stresses
d) Kinetic energy

Answer: a
Explanation: Strain, is a term used to measure the deformation or extension of a body that is subjected to a force or set of forces. The strain of a body is generally defined as the change in length divided by the initial length. The elongation of the bar is assumed normal, or perpendicular, to the cross section. Therefore, like stress, the strain is called a normal strain.