Multiple Choice Question (MCQ)
Question: What is the correct sequence of the operation of a simple fire extinguisher?
A.
Pull, Aim squeeze & sweep
B.
Aim pull sweep and squeeze
C.
Squeeze aim pull and sweep
D.
Sweep Aim pull and squeeze
Correct Answer: Pull, Aim squeeze & sweep
Explanation
Strain is the deformation of a material from stress. Strain is simply a ratio of the change in length to the original length. Deformations that are applied perpendicular to the cross section are normal strains, while deformations applied parallel to the cross section are shear strains.
There is no unit for strain.